SEAT ALTEA 2011

Wiring Diagram SEAT ALTEA 2011 - Battery - Starter - Alternator

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
J519	Onboard supply control unit
SA1	Fuse 1 in fuse holder A, on left in engine compartment (low box)
SA5	Fuse 5 in fuse holder A, on left in engine compartment (low box)
T2ah	2-pin connector
T2c	2-pin connector, near starter (only models with no air conditioning system)
T4t	4-pin connector, near starter (only models with air conditioning system)
T52c	52-pin connector

507	Threaded connection (30), on battery fuse holder


A17	Connection (61), in dash panel wiring harness
D108	Connection 6 in engine compartment wiring harness

Wiring Diagram SEAT ALTEA 2011 - Ignition/starter switch - Cruise control system switch - Steering column electronics control unit

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D	Ignition/starter switch
E45	Cruise control system switch
E227	Cruise control system (CCS) SET button
J519	Onboard supply control unit
J527	Steering column electronics control unit
T6ap	6-pin connector
T8r	8-pin connector
T16d	16-pin connector
T52c	52-pin connector

368	Earth connection 3, in main wiring harness
382	Earth connection 17, in main wiring harness
507	Threaded connection (30), on battery fuse holder

A2	Positive connection (15), in dash panel wiring harness
*	Only left-hand drive models

Wiring Diagram SEAT ALTEA 2011 - Terminal 30 voltage supply relay - Steering column electronics control unit - Fuse holder B

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J317	Terminal 30 voltage supply relay, on left in engine compartment (low box)
J519	Onboard supply control unit
J527	Steering column electronics control unit
SB	Fuse holder B, on left in engine compartment (low box)
SB1	Fuse 1 on fuse holder B
SB2	Fuse 2 on fuse holder B
SB3	Fuse 3 on fuse holder B
SB4	Fuse 4 on fuse holder B
SB5	Fuse 5 on fuse holder B
T16d	16-pin connector
T40a	40-pin connector
507	Threaded connection (30), on battery fuse holder
B111	Positive connection 1 (30a), in interior wiring harness
B441	Connection (CCS), in main wiring harness

Wiring Diagram SEAT ALTEA 2011 - Fuel gauge sender - Fuel system pressurisation pump - Fuel pump relay - Intake manifold preheating relay - Fuse holder B

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G	Fuel gauge sender
G6	Fuel system pressurisation pump
J17	Fuel pump relay, on relay carrier, on left of dash panel
J81	Intake manifold preheating relay, on relay carrier, on left of dash panel
J519	Onboard supply control unit
SB	Fuse holder B, on left in engine compartment (low box)
SB6	Fuse 6 on fuse holder B
SB7	Fuse 7 on fuse holder B
SB10	Fuse 10 on fuse holder B
SB13	Fuse 13 on fuse holder B
SB14	Fuse 14 on fuse holder B
SB15	Fuse 15 on fuse holder B
T5a	5-pin connector
T10e	10-pin connector
T40a	40-pin connector

384	Earth connection 19, in main wiring harness
B111	Positive connection 1 (30a), in interior wiring harness
D104	Positive connection 2 (30a), in engine compartment wiring harness
D183	Connection 4 (87a), in engine compartment wiring harness

Wiring Diagram SEAT ALTEA 2011 - Fuse holder B

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J519	Onboard supply control unit
SB	Fuse holder B, on left in engine compartment (low box)
SB16	Fuse 16 on fuse holder B
SB17	Fuse 17 on fuse holder B
SB18	Fuse 18 on fuse holder B
SB19	Fuse 19 on fuse holder B
SB21	Fuse 21 on fuse holder B
SB22	Fuse 22 on fuse holder B
SB23	Fuse 23 on fuse holder B
SB24	Fuse 24 on fuse holder B
SB25	Fuse 25 on fuse holder B
SB26	Fuse 26 on fuse holder B
SB28	Fuse 28 on fuse holder B
T14a	14-pin connector, near front left longitudinal member
T40a	40-pin connector
D180	Connection (87a), in engine compartment wiring harness

Wiring Diagram SEAT ALTEA 2011 - Automatic glow period control unit - Glow plug 1 - Glow plug 2 - Glow plug 3 - Glow plug 4 - Fuse holder B - Push-in bridge

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J179	Automatic glow period control unit, on left in engine compartment, under E-box Low
J519	Onboard supply control unit
Q10	Glow plug 1
Q11	Glow plug 2
Q12	Glow plug 3
Q13	Glow plug 4
SB	Fuse holder B, on left in engine compartment (low box)
SB20	Fuse 20 on fuse holder B
SB27	Fuse 27 on fuse holder B
SB29	Fuse 29 on fuse holder B
SB30	Fuse 30 on fuse holder B
T11a	11-pin connector
T14a	14-pin connector, near front left longitudinal member
T40a	40-pin connector
TV23	Push-in bridge

Wiring Diagram SEAT ALTEA 2011 - Engine control unit

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J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
T94a	94-pin connector
132	Earth connection 3, in engine compartment wiring harness

D182	Connection 3 (87a), in engine compartment wiring harness

Wiring Diagram SEAT ALTEA 2011 - Charge pressure sender - Intake air temperature sender - Engine control unit - Intake manifold preheating heater element

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G31	Charge pressure sender
G42	Intake air temperature sender
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
N51	Intake manifold preheating heater element
T4ad	4-pin connector
T94a	94-pin connector
328	Earth connection 2 (sender earth), in engine compartment wiring harness

D195	Connection 1 (5V) in engine compartment wiring harness
*	Only for countries with cold climate

Wiring Diagram SEAT ALTEA 2011 - Radiator outlet coolant temperature sender - Exhaust gas temperature sender 1 - Engine control unit

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G83	Radiator outlet coolant temperature sender
G235	Exhaust gas temperature sender 1
J359	Low heat output relay, on relay carrier, on left of dash panel
J360	High heat output relay, on relay carrier, on left of dash panel
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
T2aj	2-pin connector, black
T6r	6-pin connector
T9b	9-pin connector
T10a	10-pin connector, near front left longitudinal member
T94a	94-pin connector
327	Earth connection (sender earth), in engine compartment wiring harness
*	Only models with auxiliary air heater

Wiring Diagram SEAT ALTEA 2011 - Engine control unit - Injector - cylinder 1 - Injector - cylinder 2 - Injector - cylinder 3 - Injector - cylinder 4

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J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
N33	Injector, cylinder 4
T60a	60-pin connector

Wiring Diagram SEAT ALTEA 2011 - Air mass meter - Accelerator position sender - Engine control unit

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G70	Air mass meter
G79	Accelerator position sender
G185	Accelerator position sender 2
J293	Radiator fan control unit
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
T4b	4-pin connector
T6h	6-pin connector
T94a	94-pin connector
V7	Radiator fan

Wiring Diagram SEAT ALTEA 2011 - Coolant temperature sender - Fuel temperature sender - Engine control unit - Fuel pressure regulating valve - Fuel metering valve - Coolant circulation pump 2

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G62	Coolant temperature sender
G81	Fuel temperature sender
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
N276	Fuel pressure regulating valve
N290	Fuel metering valve
T14a	14-pin connector, near front left longitudinal member
T60a	60-pin connector
V178	Coolant circulation pump 2
474	Earth connection (sender earth) in engine prewiring harness

D173	Connection (87), in engine prewiring harness

Wiring Diagram SEAT ALTEA 2011 - Engine speed sender - Fuel pressure sender - Engine control unit

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G28	Engine speed sender
G247	Fuel pressure sender
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
T60a	60-pin connector
220	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V) in engine prewiring harness

Wiring Diagram SEAT ALTEA 2011 - Position sender for charge pressure positioner - Throttle valve module - Engine control unit - Exhaust gas recirculation valve

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G69	Throttle valve potentiometer
G212	Exhaust gas recirculation potentiometer
G581	Position sender for charge pressure positioner
J338	Throttle valve module
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
N18	Exhaust gas recirculation valve
T60a	60-pin connector
220	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V) in engine prewiring harness

Wiring Diagram SEAT ALTEA 2011 - Hall sender - Engine control unit

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G40	Hall sender
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
T3d	3-pin connector, front in engine compartment
T60a	60-pin connector
220	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V) in engine prewiring harness

Wiring Diagram SEAT ALTEA 2011 - Engine control unit - Charge pressure control solenoid valve - Exhaust gas recirculation cooler changeover valve

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J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
N75	Charge pressure control solenoid valve
N345	Exhaust gas recirculation cooler changeover valve
T10a	10-pin connector, near front left longitudinal member
T14a	14-pin connector, near front left longitudinal member
T60a	60-pin connector
T94a	94-pin connector
D102	Connection 2 in engine compartment wiring harness

Wiring Diagram SEAT ALTEA 2011 - Brake pedal position sender - Clutch position sender - Engine control unit

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G100	Brake pedal position sender
G476	Clutch position sender
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
T4y	4-pin connector
T5d	5-pin connector
T52c	52-pin connector
T94a	94-pin connector
383	Earth connection 18, in main wiring harness

B131	Connection (54), in interior wiring harness
*	Only models with ABS
*2	Only models with ABS, EDL, TCS and ESP

Wiring Diagram SEAT ALTEA 2011 - Engine control unit

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J104	ABS control unit
J519	Onboard supply control unit
J623	Engine control unit, central in plenum chamber
T26a	26-pin connector
T47a	47-pin connector
T94a	94-pin connector
A41	Positive connection (50), in dash panel wiring harness
B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
*	Only models with ABS
*2	Only models with ABS, EDL, TCS and ESP

Wiring Diagram SEAT ALTEA 2011 - Terminal 15 voltage supply relay 2 - Terminal 50 voltage supply relay - Fuse holder C

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J519	Onboard supply control unit
J681	Terminal 15 voltage supply relay 2, on relay carrier, on left of dash panel
J682	Terminal 50 voltage supply relay, on relay carrier, on left of dash panel
SC	Fuse holder C, Fuse carrier on left of dash panel
SC13	Fuse 13 on fuse holder C
SC14	Fuse 14 on fuse holder C
SC15	Fuse 15 on fuse holder C
SC47	Fuse 47 on fuse holder C
T9a	9-pin connector
T9c	9-pin connector
T52b	52-pin connector
A20	Positive connection (15a), in dash panel wiring harness
A38	Positive connection 2 (15a) in dash panel wiring harness
A40	Positive connection 1 (30), in dash panel wiring harness
A41	Positive connection (50), in dash panel wiring harness
B156	Positive connection (30a), in interior wiring harness
B277	Positive connection 1 (15a) in main wiring harness
B278	Positive connection 2 (15a) in main wiring harness
B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
*	Only left-hand drive models
*2	Only models with extended servicing intervals (ESI)

Wiring Diagram SEAT ALTEA 2011 - Control unit in dash panel insert - Data bus diagnostic interface

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J285	Control unit in dash panel insert
J533	Data bus diagnostic interface, under steering wheel
K31	Cruise control system warning lamp
K231	Diesel particulate filter warning lamp
T20k	20-pin connector
T32b	32-pin connector
238	Earth connection 1, in interior wiring harness
367	Earth connection 2, in main wiring harness

B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness

Wiring Diagram SEAT ALTEA 2011 - Fuel gauge - Coolant temperature gauge - Rev. counter - Speedometer - Coolant shortage indicator sender - Control unit in dash panel insert - Alternator warning lamp - Exhaust emissions warning lamp

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G1	Fuel gauge
G3	Coolant temperature gauge
G5	Rev. counter
G21	Speedometer
G32	Coolant shortage indicator sender
J285	Control unit in dash panel insert
K2	Alternator warning lamp
K28	Coolant temperature and coolant shortage warning lamp
K29	Glow period warning lamp
K83	Exhaust emissions warning lamp
K105	Reserve fuel warning lamp
T32b	32-pin connector
269	Earth connection (sender earth) 1, in dash panel wiring harness

Wiring Diagram SEAT ALTEA 2011 - Oil pressure switch - Oil level and oil temperature sender - Buzzer and gong - Control unit in dash panel insert - Oil pressure warning lamp - Oil level warning lamp

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F1	Oil pressure switch
G266	Oil level and oil temperature sender
H3	Buzzer and gong
J285	Control unit in dash panel insert
K3	Oil pressure warning lamp
K38	Oil level warning lamp
T6j	6-pin connector, near front left longitudinal member
T14a	14-pin connector, near front left longitudinal member
T32b	32-pin connector
317	Earth connection 7, in engine compartment wiring harness
370	Earth connection 5, in main wiring harness

*	Only models with extended servicing intervals (ESI)

Control units overview

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q	50-pin connector assigment

q	75-pin connector assigment

q	10-pin connector assigment

q	from June 2011:

q	Location, only left-hand drive models

q	12-pin connector assigment

q	Location, only right-hand drive models

q	12-pin connector assigment

q	Connector assigment

q	Connector assigment

q	Connector assigment

q	Connector assigment

q	Connector assigment

q	Connector assigment

q	Connector assigment

q	Connector assigment

q	from June 2010:

Location

q	Connector assigment

q	Connector assigment

q	Description of signal

q	Connector assigment

q	Connector assigment

SEAT ALTEA 2011

Airbag control unit -J234-

Location:

Under centre console -arrow-

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50-pin connector assigment:

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A -	Airbag control unit -J234-

Pin connector:

B -	50-pin connector -T50a-

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75-pin connector assigment:

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A -	Airbag control unit -J234-

Pin connector:

B -	75-pin connector -T75a-

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SEAT ALTEA 2011

Voltage stabiliser -J532-

Location:

behind the glove compartment, front passenger side -arrow-

Note

from November 2009

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10-pin connector assigment:

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A -	Voltage stabiliser -J532-

Pin connector:

B -	10-pin connector -T10t-

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SEAT ALTEA 2011

Voltage stabiliser -J532-

Location, only left-hand drive models:

behind the glove compartment, front passenger side -arrow-

Note

from June 2011

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12-pin connector assigment:

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A -	Voltage stabiliser -J532-

Pin connector:

B -	12-pin connector -T12i-

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SEAT ALTEA 2011

Voltage stabiliser -J532-

Location, only right-hand drive models:

under seat on front left-arrow-

Note

from June 2011

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12-pin connector assigment:

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A -	Voltage stabiliser -J532-

Pin connector:

B -	12-pin connector -T12i-

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SEAT ALTEA 2011

Front passenger door control unit -J387-

Location:

in front passenger door -arrow-

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Connector assigment:

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A -	Front passenger door control unit -J387-

Pin connectors:

B -	20-pin connector -T20h-

C -	16-pin connector -T16a-

D -	32-pin connector -T32a-

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SEAT ALTEA 2011 Cornering light and headlight range control unit J745

Cornering light and headlight range control unit -J745-

Location:

In dash panel, right -arrow-

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SEAT ALTEA 2011 Cornering light and headlight range control unit J745

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Connector assigment:

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A -	Cornering light and headlight range control unit -J745-

Pin connector:

B -	26-pin connector -T26b-

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SEAT ALTEA 2011 Rear right door control unit J389

Rear right door control unit -J389-

Location:

on rear right door -arrow-

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SEAT ALTEA 2011 Rear right door control unit J389

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Connector assigment:

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A -	Rear right door control unit -J389-

Pin connector:

B -	18-pin connector -T18c-

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SEAT ALTEA 2011 Fuel pump control unit J538

Fuel pump control unit -J538-

Location:

Under rear seat, right, on fuel delivery unit -arrow-

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SEAT ALTEA 2011 Fuel pump control unit J538

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Connector assigment:

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A -	Fuel pump control unit -J538-

q	Engines BVY, BVZ, BWA, CBZB, CAXC, CCZB and CDAA

Pin connector:

B -	10-pin connector -T10l-

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SEAT ALTEA 2011 Rear left door control unit J388

Rear left door control unit -J388-

Location:

on rear left door -arrow-

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SEAT ALTEA 2011 Rear left door control unit J388

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Connector assigment:

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A -	Rear left door control unit -J388-

Pin connector:

B -	18-pin connector -T18b-

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SEAT ALTEA 2011 Sliding sunroof adjustment control unit J245

Sliding sunroof adjustment control unit -J245-

Location:

Behind front interior light -arrow-

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SEAT ALTEA 2011 Sliding sunroof adjustment control unit J245

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Connector assigment:

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A -	Sliding sunroof adjustment control unit -J245-

Pin connectors:

B -	6-pin connector -T6c-

C -	6-pin connector -T6d-

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SEAT ALTEA 2011 Driver door control unit J386

Driver door control unit -J386-

Location:

In driver door -arrow-

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SEAT ALTEA 2011 Driver door control unit J386

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Connector assigment:

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A -	Driver door control unit -J386-

Pin connectors:

B -	20-pin connector -T20g-

C -	16-pin connector -T16b-

D -	32-pin connector -T32c-

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SEAT ALTEA 2011 Steering column electronics control unit J527

Steering column electronics control unit -J527-

Location:

On steering column -arrow-

Note

from March 2009

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SEAT ALTEA 2011 Steering column electronics control unit J527

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Connector assigment:

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A -	Steering column electronics control unit -J527-

Pin connectors:

B -	4-pin connector, Tiptronic switch

C -	10-pin connector, gear stick illumination and CCS

D -	12-pin connector, ignition/starter switch and ignition key withdrawal lock

E -	8-pin connector, windscreen wiper switch and multifunction switch

F -	10-pin connector, steering angle sender

Note

only for left-handdrive vehicles

F -

Vacant

Note

from May 2009

G -	10-pin connector, airbag coil connector, operating unit and horn in steering wheel

H -	4-pin connector -T4f-

J -	20-pin connector -T20d-

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Location:

On steering column -arrow-

Note

from June 2010:

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Connector assigment:

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A -	Steering column electronics control unit -J527-

Pin connectors:

B -	6-pin connector, windscreen wiper switch and multifunction switch

C -	8-pin connector, ignition/starter switch and ignition key withdrawal lock

D -	16-pin connector -T16d-

E -	9-pin connector, cruise control system

F -	4-pin connector -T4f-

G -	8-pin connector, gear stick illumination

H -	12-pin connector, operating unit in steering wheel and driver airbag -T12f-

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SEAT ALTEA 2011 Onboard supply control unit J519

Onboard supply control unit -J519-

Location:

On left under dash panel, under relay carrier -arrow-

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SEAT ALTEA 2011 Onboard supply control unit J519

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Connector assigment:

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D -	Onboard supply control unit -J519-

Pin connectors:

A -	52-pin connector, black -T52a-

B -	52-pin connector, white -T52b-

C -	52-pin connector, brown -T52c-

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SEAT ALTEA 2011 Control unit in dash panel insert J285

Control unit in dash panel insert -J285-

Location:

in dash panel -arrow-

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SEAT ALTEA 2011 Control unit in dash panel insert J285

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Connector assigment:

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A -	Control unit in dash panel insert -J285-

Pin connector:

B -	32-pin connector -T32b-

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SEAT ALTEA 2011 Data bus diagnostic interface J533

Data bus diagnostic interface -J533-

Location:

under steering wheel, near centre console -arrow-

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SEAT ALTEA 2011 Data bus diagnostic interface J533

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Connector assigment:

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A -	Data bus diagnostic interface -J533-

Pin connector:

B -	20-pin connector -T20k-

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SEAT ALTEA 2011 Overview of fuses

Overview of fuses

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q	Position of fuses, from March 2009:

q	Position of fuses, from May 2009:

q	Position of fuses, from November 2010:

q	Position of fuses, from March 2009:

q	Position of fuses, from May 2009:

q	Position of fuses, from June 2010:

q	Position of fuses, from June 2011:

q	Position of fuses, from November 2011:

q	Position of fuses, from March 2009:

q	Position of fuses, from May 2009:

q	Position of fuses, from June 2010:

q	Position of fuses, from June 2011:

SEAT ALTEA 2011 Fuses (SA) on electronics box low, in left engine compartment

Fuses (SA) on electronics box low, in left engine compartment

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Fuse locations in electronics box low, from March 2009

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder A -SA1-	150 A	-	Alternator -C- 90 A / 110 A	30a
			200 A	-	Alternator -C- 140 A
2	-	Fuse 2 on fuse holder A -SA2-	80 A	-	Electromechanical power steering motor -V187-	30a
3	-	Fuse 3 on fuse holder A -SA3-	50 A	-	Radiator fan thermal switch -F18-	30a
					Radiator fan control unit -J293-
					Radiator fan 2 -V177-
					Radiator fan -V7-
4	-	Fuse 4 on fuse holder A -SA4-	80 A	-	High heat output relay -J360-	30a
5	-	Fuse 5 on fuse holder A -SA5-	80 A	-	Fuses on fuse holder on left of dash panel (SC20 - SC24, SC42 - SC56)	30a
6	-	Fuse 6 on fuse holder A -SA6-	40 A	-	Low heat output relay -J359-	30a
7	-		-	-	Driver door control unit -J386- (with Autolock function)	30
					Front passenger door control unit -J387- (with Autolock function)
					Rear left door control unit -J388- (with Autolock function)
					Rear right door control unit -J389- (with Autolock function)
					Onboard supply control unit -J519- (with Autolock function) (via B/1), supply central locking
A	-	Screw connection (30), on fuse holder on battery -507-	-	-	Battery -A- (+)	30

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Fuse locations in electronics box low, from May 2009

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder A -SA1-	150 A	-	Alternator -C- 90 A / 110 A	30a
			200 A	-	Alternator -C- 140 A
2	-	Fuse 2 on fuse holder A -SA2-	80 A	-	Electromechanical power steering motor -V187-	30a
3	-	Fuse 3 on fuse holder A -SA3-	50 A	-	Radiator fan thermal switch -F18-	30a
					Radiator fan control unit -J293-
					Radiator fan 2 -V177-
					Radiator fan -V7-
4	-	Fuse 4 on fuse holder A -SA4-	80 A	-	High heat output relay -J360-	30a
5	-	Fuse 5 on fuse holder A -SA5-	80 A	-	Fuses on fuse holder on left of dash panel (SC20 - SC24, SC42 - SC56)	30a
6	-	Fuse 6 on fuse holder A -SA6-	40 A	-	Low heat output relay -J359-	30a
			30 A	-	Gas mode control unit -J659- (CHGA)
7	-		-	-	Driver door control unit -J386- (with Autolock function)	30
					Front passenger door control unit -J387- (with Autolock function)
					Rear left door control unit -J388- (with Autolock function)
					Rear right door control unit -J389- (with Autolock function)
					Onboard supply control unit -J519- (with Autolock function) (via B/1), supply central locking
A	-	Screw connection (30), on fuse holder on battery -507-	-	-	Battery -A- (+)	30

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Fuse locations in electronics box low, from November 2010

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder A -SA1-	150 A	-	Alternator -C- 90 A / 110 A	30a
			200 A	-	Alternator -C- 140 A
2	-	Fuse 2 on fuse holder A -SA2-	80 A	-	Electromechanical power steering motor -V187-	30a
3	-	Fuse 3 on fuse holder A -SA3-	50 A	-	Radiator fan thermal switch -F18-	30a
					Radiator fan control unit -J293-
					Radiator fan 2 -V177-
					Radiator fan -V7-
4	-	Fuse 4 on fuse holder A -SA4-	80 A	-	High heat output relay -J360-	30a
5	-	Fuse 5 on fuse holder A -SA5-	80 A	-	Fuses on fuse holder on left of dash panel (SC20 - SC24, SC42 - SC56)	30a
6	-	Fuse 6 on fuse holder A -SA6-	40 A	-	Low heat output relay -J359-	30a
7	-		-	-	Driver door control unit -J386- (with Autolock function)	30
					Front passenger door control unit -J387- (with Autolock function)
					Rear left door control unit -J388- (with Autolock function)
					Rear right door control unit -J389- (with Autolock function)
					Onboard supply control unit -J519- (with Autolock function) (via B/1), supply central locking
A	-	Screw connection (30), on fuse holder on battery -507-	-	-	Battery -A- (+)	30

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SEAT ALTEA 2011 Fuses (SB) on electronics box low, on left of engine compartment

Fuses (SB) on electronics box low, on left of engine compartment

Get access to all wiring diagrams of the car

-	Fuse colours

50 A - red

40 A - orange

30 A - green

25 A - white

20 A - yellow

15 A - blue

10 A - red

7.5 A - brown

5 A - beige

3 A - purple

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Position of fuses, from March 2009

No.	T40a	Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	32	Fuse 1 on fuse holder B -SB1-	30 A	-	Front passenger side wiper motor control unit -J584-	30a
F2	39	Fuse 2 on fuse holder B -SB2-	30 A	-	Mechatronic unit for dual clutch gearbox -J743- (CDAA)	30a
F3	38	Fuse 3 on fuse holder B -SB3-	5 A	-	Onboard supply control unit -J519- (via A/24) reference voltage	30a
F4	27	Fuse 4 on fuse holder B -SB4-	20 A	-	ABS control unit -J104-	30a
F5	40	Fuse 5 on fuse holder B -SB5-	15 A	-	Mechatronic unit for dual clutch gearbox -J743- (AZV, BKD, BLS, BMM, BWA and CDAA)	30a
F6	25	Fuse 6 on fuse holder B -SB6-	5 A	-	Control unit in dash panel insert -J285-	30a
					Steering column electronics control unit -J527-
F7	33	Fuse 7 on fuse holder B -SB7-	40 A	-	Terminal 15 voltage supply relay 2 -J681-	30a
F8	34	Fuse 8 on fuse holder B -SB8-	15 A	-	Control unit with display for radio and navigation system -J503-	30a
					Radio -R-
F9	30	Fuse 9 on fuse holder B -SB9-	5 A	-	Telephone transmitter and receiver unit -R36-	30a
F10	28	Fuse 10 on fuse holder B -SB10-	5 A	-	Main relay -J271- (BVY, BVZ and CAXC)	30a
					Terminal 30 voltage supply relay -J317- (AZV, BKD, BLS, BMM, BMN, BXE and CEGA)
					Engine control unit -J623- (BVY, BVZ, CAXC and CEGA)
			10 A	-	Main relay -J271- (BWA and CDAA)
					Terminal 30 voltage supply relay -J317- (BXW)
					Engine control unit -J623- (BWA, BXW and CDAA)
F11	20	Fuse 11 on fuse holder B -SB11-	-	-	vacant
F12	24	Fuse 12 on fuse holder B -SB12-	5 A	-	Data bus diagnostic interface -J533-	30a
F13	22	Fuse 13 on fuse holder B -SB13-	15 A	-	Engine control unit -J623- (BSE, BSF, BVY, BVZ, BWA, BXW, CAXC, CCSA and CDAA)	87a
			30 A	-	Engine control unit -J623- (AZV, BKD, BLS, BMM, BMN, BXE and CEGA)
F14	19	Fuse 14 on fuse holder B -SB14-	20 A	-	Ignition coil 1 with output stage -N70- (BVY, BVZ, BWA, BXW, CAXC and CDAA)	87a
					Ignition coil 2 with output stage -N127- (BVY, BVZ, BWA, BXW, CAXC and CDAA)
					Ignition transformer -N152- (BSE, BSF and CCSA)
					Fuel pressure regulating valve -N276- (CEGA)
					Fuel metering valve -N290- (CEGA)
					Ignition coil 3 with output stage -N291- (BVY, BVZ, BWA, BXW, CAXC and CDAA)
					Ignition coil 4 with output stage -N292- (BVY, BVZ, BWA, BXW, CAXC and CDAA)
F15	26	Fuse 15 on fuse holder B -SB15-	5 A	-	Fuel pump relay -J17- (AZV, BKD, BLS, BMM, BMN, BXE and CEGA)	87a
					Electric fuel pump 2 relay -J49- (CEGA)
					Automatic glow period control unit -J179- (AZV, BKD, BLS, BMM, BMN, BXE and CEGA)
					Low heat output relay -J359-
					High heat output relay -J360-
			10 A	-	Injector, cylinder 1 -N30- (BXW)
					Injector, cylinder 2 -N31- (BXW)
					Injector, cylinder 3 -N32- (BXW)
					Injector, cylinder 4 -N33- (BXW)
					Circulation pump relay -J160- (BWA)
					Lambda probe heater -Z19- (CAXC)
					Lambda probe 1 heater after catalytic converter -Z29- (BVY, BVZ and CAXC)
					Lambda probe 2 heater after catalytic converter -Z30- (BVY)
					Lambda probe 3 heater after catalytic converter -Z64- (BVY)
F16	23	Fuse 16 on fuse holder B -SB16-	30 A	-	Onboard supply control unit -J519- (via C/42), right headlight bulb supply	30a
F17	18	Fuse 17 on fuse holder B -SB17-	15 A	-	Dual tone horn relay -J4-	30a
F18	17	Fuse 18 on fuse holder B -SB18-	-	-	vacant
F19	12	Fuse 19 on fuse holder B -SB19-	30 A	-	Wiper motor control unit -J400- , driver side	30a
F20	13	Fuse 20 on fuse holder B -SB20-	10 A	-	Coolant circulation pump -V50- (CAXC)	87a
			20 A	-	Fuel pressure regulating valve -N276- (CDAA)
F21	16	Fuse 21 on fuse holder B -SB21-	10 A	-	Lambda probe heater -Z19- (BLS, BMM, BMN and CEGA)	87a
			15 A	-	Lambda probe heater -Z19- (BSE, BSF, BVY, BVZ, BXW, CCSA and CDAA)
					Lambda probe 1 heater after catalytic converter -Z29- (BSE, BSF, BXW, CCSA and CDAA)
F22	14	Fuse 22 on fuse holder B -SB22-	5 A	-	Clutch position sender -G476-	87a
F23	21	Fuse 23 on fuse holder B -SB23-	5 A	-	Continued coolant circulation relay -J151- (CDAA)	87a
					Circulation pump relay -J160- (BWA)
					Secondary air pump relay -J299- (BSE and CCSA)
					Motronic current supply relay -2- -J670- (BWA)
			10 A	-	Exhaust gas recirculation valve -N18- (AZV, BKD and BXE)
					Charge pressure control solenoid valve -N75- (AZV, BKD, BLS, BMM, BMN, BXE and CEGA)
					Intake manifold flap valve -N316- (BMN)
					Exhaust gas recirculation cooler change-over valve -N345- (AZV, BKD, BLS, BMM, BMN, BXE and CEGA)
			15 A	-	Fuel pressure regulating valve -N276- (BVY, BVZ and CAXC)
F24	11	Fuse 24 on fuse holder B -SB24-	10 A	-	Radiator fan control unit C1781 -J293-	87a
					Additional coolant pump relay -J496- (CAXC)
					Engine component current supply relay -J757- (CDAA)
					Charge pressure control solenoid valve -N75- (CAXC and CDAA)
					Activated charcoal filter system solenoid valve 1 -N80- (BSE, BSF, BVY, BVZ, BXW, CAXC, CCSA and CDAA)
					Variable intake manifold change-over valve -N156- (BSE, BSF, BVY, BVZ and CCSA)
					Inlet camshaft control valve 1 -N205- (BVY, BVZ, BWA, BXW, CAXC and CDAA)
					Turbocharger air recirculation valve -N249- (CAXC and CDAA)
					Intake manifold flap valve -N316- (CDAA)
					Oil pressure warning lamp -N428- (CDAA)
					Radiator fan -V7-
					Intake manifold flap motor -V157- (AZV, BKD and BXE)
					Coolant circulation pump 2 -V178- (CEGA)
F25	31	Fuse 25 on fuse holder B -SB25-	40 A	-	ABS control unit -J104-	30a
F26	35	Fuse 26 on fuse holder B -SB26-	30 A	-	Onboard supply control unit -J519- (via A/1), left headlight bulb supply	30a
F27	1	Fuse 27 on fuse holder B -SB27-	40 A	-	Secondary air pump motor -V101- (BSE and CCSA)	87a
			50 A	-	Automatic glow period control unit -J179- (AZV, BKD, BLS, BMM, BMN, BXE and CEGA)	30a
F28	4	Fuse 28 on fuse holder B -SB28-	-	-	vacant
F29	2	Fuse 29 on fuse holder B -SB29-	50 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
F30	3	Fuse 30 on fuse holder B -SB30-	50 A	-	X-contact relief relay -J59-	30a

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Position of fuses, from May 2009

No.	T40a	Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	32	Fuse 1 on fuse holder B -SB1-	30 A	-	Front passenger side wiper motor control unit -J584-	30a
F2	39	Fuse 2 on fuse holder B -SB2-	30 A	-	Mechatronic unit for dual clutch gearbox -J743- (BSF, CAYC and CDAA)	30a
F3	38	Fuse 3 on fuse holder B -SB3-	5 A	-	Battery monitor control unit -J367- (CAYC with stop/start system)	30a
					Onboard supply control unit -J519- (via A/24), reference voltage
F4	27	Fuse 4 on fuse holder B -SB4-	20 A	-	ABS control unit -J104-	30a
F5	40	Fuse 5 on fuse holder B -SB5-	15 A	-	Mechatronic unit for dual clutch gearbox -J743- (AZV, BKD, BLS, BMM, BSF, CAYC, CCZB and CDAA)	30a
F6	25	Fuse 6 on fuse holder B -SB6-	5 A	-	Control unit in dash panel insert -J285- (without stop/start system)	30a
					Steering column electronics control unit -J527-
F7	33	Fuse 7 on fuse holder B -SB7-	40 A	-	Terminal 15 voltage supply relay 2 -J681-	30a
F8	34	Fuse 8 on fuse holder B -SB8-	15 A	-	Control unit with display for radio and navigation system -J503-	30a
					Voltage stabiliser -J532- (CAYC with stop/start system)
					Radio -R-
F9	30	Fuse 9 on fuse holder B -SB9-	5 A	-	Telephone transmitter and receiver unit -R36- (without stop/start system)	30a
F10	28	Fuse 10 on fuse holder B -SB10-	5 A	-	Main relay -J271- (CAXC)	30a
					Terminal 30 voltage supply relay -J317- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC and CEGA)
					Engine control unit -J623- (CAXC, CAYC and CEGA)
			10 A	-	Main relay -J271- (CCZB and CDAA)
					Terminal 30 voltage supply relay -J317- (BXW)
					Engine control unit -J623- (CCZB, BXW and CDAA)
F11	20	Fuse 11 on fuse holder B -SB11-	-	-	vacant
F12	24	Fuse 12 on fuse holder B -SB12-	5 A	-	Data bus diagnostic interface -J533-	30a
F13	22	Fuse 13 on fuse holder B -SB13-	15 A	-	Engine control unit -J623- (BSE, BSF, BXW, CAXC, CCSA, CCZB, CDAA and CHGA)	87a
			30 A	-	Engine control unit -J623- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC and CEGA)
F14	19	Fuse 14 on fuse holder B -SB14-	20 A	-	Ignition coil 1 with output stage -N70- (BXW, CAXC, CCZB and CDAA)	87a
					Ignition coil 2 with output stage -N127- (BXW, CAXC, CCZB and CDAA)
					Ignition transformer -N152- (BSE, BSF, CCSA and CHGA)
					Fuel pressure regulating valve -N276- (CAYC and CEGA)
					Fuel metering valve -N290- (CAYC and CEGA)
					Ignition coil 3 with output stage -N291- (BXW, CAXC, CCZB and CDAA)
					Ignition coil 4 with output stage -N292- (BXW, CAXC, CCZB and CDAA)
F15	26	Fuse 15 on fuse holder B -SB15-	5 A	-	Fuel pump relay -J17- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC and CEGA)	87a
					Electric fuel pump 2 relay -J49- (CEGA)
					Automatic glow period control unit -J179- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC and CEGA)
					Low heat output relay -J359-
					High heat output relay -J360-
			10 A	-	Injector, cylinder 1 -N30- (BXW)
					Injector, cylinder 2 -N31- (BXW)
					Injector, cylinder 3 -N32- (BXW)
					Injector, cylinder 4 -N33- (BXW)
					Lambda probe heater -Z19- (CAXC)
					Lambda probe 1 heater after catalytic converter -Z29- (CAXC)
F16	23	Fuse 16 on fuse holder B -SB16-	30 A	-	Onboard supply control unit -J519- (via C/42), right headlight bulb supply	30a
F17	18	Fuse 17 on fuse holder B -SB17-	15 A	-	Dual tone horn relay -J4-	30a
F18	17	Fuse 18 on fuse holder B -SB18-	-	-	vacant
F19	12	Fuse 19 on fuse holder B -SB19-	30 A	-	Wiper motor control unit -J400- , driver side	30a
F20	13	Fuse 20 on fuse holder B -SB20-	10 A	-	Coolant circulation pump -V50- (CAXC)	87a
			20 A	-	Fuel pressure regulating valve -N276- (CCZB and CDAA)
F21	16	Fuse 21 on fuse holder B -SB21-	10 A	-	Lambda probe heater -Z19- (BLS, BMM, BMN and CEGA)	87a
			15 A	-	Lambda probe heater -Z19- (BSE, BSF, BXW, CCSA, CCZB, CDAA and CHGA)
					Lambda probe 1 heater after catalytic converter -Z29- (BSE, BSF, BXW, CCSA, CCZB, CDAA and CHGA)
F22	14	Fuse 22 on fuse holder B -SB22-	5 A	-	Clutch position sender -G476-	87a
F23	21	Fuse 23 on fuse holder B -SB23-	5 A	-	Continued coolant circulation relay -J151- (CCZB and CDAA)	87a
					Secondary air pump relay -J299- (BSE, CCSA and CHGA)
			10 A	-	Intake manifold preheating relay -J81- (CAYC)
					Exhaust gas recirculation valve -N18- (AZV, BKD, BXE and BXF)
					Charge pressure control solenoid valve -N75- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC and CEGA)
					Exhaust gas recirculation cooler change-over valve -N345- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC and CEGA)
			15 A	-	Fuel pressure regulating valve -N276- (CAXC)
F24	11	Fuse 24 on fuse holder B -SB24-	10 A	-	Radiator fan control unit C1781 -J293-	87a
					Additional coolant pump relay -J496- (CAXC)
					Engine component current supply relay -J757- (CCZB and CDAA)
					Charge pressure control solenoid valve -N75- (CAXC, CCZB and CDAA)
					Activated charcoal filter system solenoid valve 1 -N80- (BSE, BSF, BXW, CAXC, CCSA, CCZB, CDAA and CHGA)
					Variable intake manifold change-over valve -N156- (BSE, BSF, CCSA and CHGA)
					Inlet camshaft control valve 1 -N205- (CAXC, CCZB and CDAA)
					Turbocharger air recirculation valve -N249- (CAXC, CCZB and CDAA)
					Intake manifold flap valve -N316- (CCZB and CDAA)
					Oil pressure warning lamp -N428- (CCZB and CDAA)
					Radiator fan -V7-
					Intake manifold flap motor -V157- (AZV, BKD, BXE and BXF)
					Coolant circulation pump 2 -V178- (CAYC and CEGA)
F25	31	Fuse 25 on fuse holder B -SB25-	40 A	-	ABS control unit -J104-	30a
F26	35	Fuse 26 on fuse holder B -SB26-	30 A	-	Onboard supply control unit -J519- (via A/1), left headlight bulb supply	30a
F27	1	Fuse 27 on fuse holder B -SB27-	40 A	-	Secondary air pump motor -V101- (BSE, CCSA and CHGA)	87a
			50 A	-	Automatic glow period control unit -J179- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC and CEGA)	30a
F28	4	Fuse 28 on fuse holder B -SB28-	-	-	vacant
F29	2	Fuse 29 on fuse holder B -SB29-	50 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
F30	3	Fuse 30 on fuse holder B -SB30-	50 A	-	X-contact relief relay -J59-	30a

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Position of fuses, from June 2010

No.	T40a	Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	32	Fuse 1 on fuse holder B -SB1-	30 A	-	Front passenger side wiper motor control unit -J584-	30a
F2	39	Fuse 2 on fuse holder B -SB2-	30 A	-	Mechatronic unit for dual clutch gearbox -J743- (BSF, CAYC and CDAA)	30a
F3	38	Fuse 3 on fuse holder B -SB3-	5 A	-	Battery monitor control unit -J367- (CAYC and CBZB with stop/start system)	30a
					Onboard supply control unit -J519- (via A/24), reference voltage
F4	27	Fuse 4 on fuse holder B -SB4-	20 A	-	ABS control unit -J104-	30a
F5	40	Fuse 5 on fuse holder B -SB5-	15 A	-	Mechatronic unit for dual clutch gearbox -J743- (BKD, BLS, BMM, BSF, CAYC, CCZB, CDAA and CFHC)	30a
F6	25	Fuse 6 on fuse holder B -SB6-	5 A	-	Control unit in dash panel insert -J285- (without stop/start system)	30a
					Steering column electronics control unit -J527-
F7	33	Fuse 7 on fuse holder B -SB7-	40 A	-	Terminal 15 voltage supply relay 2 -J681-	30a
F8	34	Fuse 8 on fuse holder B -SB8-	15 A	-	Control unit with display for radio and navigation system -J503-	30a
					Voltage stabiliser -J532- (CAYC and CBZB with stop/start system)
					Radio -R-
F9	30	Fuse 9 on fuse holder B -SB9-	5 A	-	Telephone transmitter and receiver unit -R36- (without stop/start system)	30a
F10	28	Fuse 10 on fuse holder B -SB10-	5 A	-	Main relay -J271- (CAXC and CBZB)	30a
					Terminal 30 voltage supply relay -J317- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CEGA, CFHC and CFJA)
					Engine control unit -J623- (CAXC, CAYB, CAYC, CBZB, CEGA, CFHC and CFJA)
			10 A	-	Main relay -J271- (CCZB and CDAA)
					Terminal 30 voltage supply relay -J317- (CGGB)
					Engine control unit -J623- (CCZB, CDAA and CGGB)
F11	20	Fuse 11 on fuse holder B -SB11-	-	-	vacant
F12	24	Fuse 12 on fuse holder B -SB12-	5 A	-	Data bus diagnostic interface -J533-	30a
F13	22	Fuse 13 on fuse holder B -SB13-	15 A	-	Engine control unit -J623- (BSE, BSF, CAXC, CBZB, CCSA, CCZB, CDAA, CGGB, CHGA and CMXA)	87a
			30 A	-	Engine control unit -J623- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CEGA, CFHC and CFJA)
F14	19	Fuse 14 on fuse holder B -SB14-	20 A	-	Ignition coil 1 with output stage -N70- (CAXC, CCZB, CDAA and CGGB)	87a
					Ignition coil 2 with output stage -N127- (CAXC, CCZB, CDAA and CGGB)
					Ignition transformer -N152- (BSE, BSF, CBZB, CCSA, CHGA and CMXA)
					Fuel pressure regulating valve -N276- (CAYB, CAYC, CEGA, CFHC and CFJA)
					Fuel metering valve -N290- (CAYB, CAYC, CEGA, CFHC and CFJA)
					Ignition coil 3 with output stage -N291- (CAXC, CCZB, CDAA and CGGB)
					Ignition coil 4 with output stage -N292- (CAXC, CCZB, CDAA and CGGB)
F15	26	Fuse 15 on fuse holder B -SB15-	5 A	-	Fuel pump relay -J17- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CEGA, CFHC and CFJA)	87a
					Electric fuel pump 2 relay -J49- (CEGA, CFHC and CFJA)
					Automatic glow period control unit -J179- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CEGA, CFHC and CFJA)
					Low heat output relay -J359-
					High heat output relay -J360-
			10 A	-	Injector, cylinder 1 -N30- (CGGB)
					Injector, cylinder 2 -N31- (CGGB)
					Injector, cylinder 3 -N32- (CGGB)
					Injector, cylinder 4 -N33- (CGGB)
					Lambda probe heater -Z19- (CAXC and CBZB)
					Lambda probe 1 heater after catalytic converter -Z29- (CAXC and CBZB)
			15 A	-	Sender for gas gauge -G707- (CHGA)
					Gas mode control unit -J659- (CHGA)
					Gas injection valve 1 -N366- (CHGA)
					Gas injection valve 2 -N367- (CHGA)
					Gas injection valve 3 -N368- (CHGA)
					Gas injection valve 4 -N369- (CHGA)
					High pressure valve for gas mode -N372- (CHGA)
					Gas reservoir valve -N495- (CHGA)
F16	23	Fuse 16 on fuse holder B -SB16-	30 A	-	Onboard supply control unit -J519- (via C/42), right headlight bulb supply	30a
F17	18	Fuse 17 on fuse holder B -SB17-	15 A	-	Dual tone horn relay -J4-	30a
F18	17	Fuse 18 on fuse holder B -SB18-	-	-	vacant
F19	12	Fuse 19 on fuse holder B -SB19-	30 A	-	Wiper motor control unit -J400- , driver side	30a
F20	13	Fuse 20 on fuse holder B -SB20-	10 A	-	Coolant circulation pump -V50- (CAXC and CBZB)	87a
			20 A	-	Fuel pressure regulating valve -N276- (CCZB and CDAA)
F21	16	Fuse 21 on fuse holder B -SB21-	10 A	-	Lambda probe heater -Z19- (BLS, BMM, CAYB, CAYC, CEGA, CFHC and CFJA)	87a
			15 A	-	Lambda probe heater -Z19- (BSE, BSF, CCSA, CCZB, CDAA, CGGB, CHGA and CMXA)
					Lambda probe 1 heater after catalytic converter -Z29- (BSE, BSF, CCSA, CCZB, CDAA, CGGB, CHGA and CMXA)
F22	14	Fuse 22 on fuse holder B -SB22-	5 A	-	Clutch position sender -G476-	87a
F23	21	Fuse 23 on fuse holder B -SB23-	5 A	-	Continued coolant circulation relay -J151- (CCZB and CDAA)	87a
					Secondary air pump relay -J299- (BSE, CCSA, CHGA and CMXA)
			10 A	-	Air mass meter -G70- (CFHC and CFJA)
					Intake manifold preheating relay -J81- (CAYC)
					Exhaust gas recirculation valve -N18- (BKD, BXE and BXF)
					Charge pressure control solenoid valve -N75- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CEGA, CFHC and CFJA)
					Exhaust gas recirculation cooler change-over valve -N345- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CEGA, CFHC and CFJA)
			15 A	-	Fuel pressure regulating valve -N276- (CAXC and CBZB)
F24	11	Fuse 24 on fuse holder B -SB24-	10 A	-	Radiator fan control unit C1781 -J293-	87a
					Additional coolant pump relay -J496- (CAXC and CBZB)
					Engine component current supply relay -J757- (CCZB and CDAA)
					Charge pressure control solenoid valve -N75- (CAXC, CCZB and CDAA)
					Activated charcoal filter system solenoid valve 1 -N80- (BSE, BSF, CAXC, CBZB, CCSA, CCZB, CDAA, CGGB, CHGA and CMXA)
					Variable intake manifold change-over valve -N156- (BSE, BSF, CCSA, CHGA and CMXA)
					Inlet camshaft control valve 1 -N205- (CAXC, CCZB and CDAA)
					Turbocharger air recirculation valve -N249- (CAXC, CCZB, CBZB and CDAA)
					Intake manifold flap valve -N316- (CCZB and CDAA)
					Oil pressure warning lamp -N428- (CCZB and CDAA)
					Refrigerant circulation solenoid valve -N492- (CBZB)
					Radiator fan -V7-
					Intake manifold flap motor -V157- (BKD, BXE and BXF)
					Coolant circulation pump 2 -V178- (CAYB, CAYC, CEGA, CFHC and CFJA)
F25	31	Fuse 25 on fuse holder B -SB25-	40 A	-	ABS control unit -J104-	30a
F26	35	Fuse 26 on fuse holder B -SB26-	30 A	-	Onboard supply control unit -J519- (via A/1), left headlight bulb supply	30a
F27	1	Fuse 27 on fuse holder B -SB27-	40 A	-	Secondary air pump motor -V101- (BSE, CCSA, CHGA and CMXA)	87a
			50 A	-	Automatic glow period control unit -J179- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CEGA, CFHC and CFJA)	30a
F28	4	Fuse 28 on fuse holder B -SB28-	-	-	vacant
F29	2	Fuse 29 on fuse holder B -SB29-	50 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
F30	3	Fuse 30 on fuse holder B -SB30-	50 A	-	X-contact relief relay -J59-	30a

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Position of fuses, from June 2011

No.	T40a	Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	32	Fuse 1 on fuse holder B -SB1-	30 A	-	Front passenger side wiper motor control unit -J584-	30a
F2	39	Fuse 2 on fuse holder B -SB2-	30 A	-	Mechatronic unit for dual clutch gearbox -J743- (BSF, CAYC and CDAA)	30a
F3	38	Fuse 3 on fuse holder B -SB3-	5 A	-	Battery monitor control unit -J367- (CAYC and CBZB with stop/start system)	30a
					Onboard supply control unit -J519- (via A/24), reference voltage
F4	27	Fuse 4 on fuse holder B -SB4-	20 A	-	ABS control unit -J104-	30a
F5	40	Fuse 5 on fuse holder B -SB5-	15 A	-	Mechatronic unit for dual clutch gearbox -J743- (BSF, CAYC, CCZB, CDAA and CFHC)	30a
F6	25	Fuse 6 on fuse holder B -SB6-	5 A	-	Control unit in dash panel insert -J285- (without stop/start system)	30a
					Steering column electronics control unit -J527-
F7	33	Fuse 7 on fuse holder B -SB7-	40 A	-	Terminal 15 voltage supply relay 2 -J681-	30a
F8	34	Fuse 8 on fuse holder B -SB8-	15 A	-	Control unit with display for radio and navigation system -J503-	30a
					Voltage stabiliser -J532- (CAYC and CBZB with stop/start system)
					Radio -R-
F9	30	Fuse 9 on fuse holder B -SB9-	5 A	-	Telephone transmitter and receiver unit -R36- (without stop/start system)	30a
F10	28	Fuse 10 on fuse holder B -SB10-	5 A	-	Main relay -J271- (CAXC and CBZB)	30a
					Terminal 30 voltage supply relay -J317- (CAYB, CAYC, CFHC and CFJA)
					Engine control unit -J623- (CAXC, CAYB, CAYC, CBZB, CFHC and CFJA)
			10 A	-	Main relay -J271- (CCZB and CDAA)
					Terminal 30 voltage supply relay -J317- (CGGB)
					Engine control unit -J623- (CCZB, CDAA and CGGB)
F11	20	Fuse 11 on fuse holder B -SB11-	-	-	vacant
F12	24	Fuse 12 on fuse holder B -SB12-	5 A	-	Data bus diagnostic interface -J533-	30a
F13	22	Fuse 13 on fuse holder B -SB13-	15 A	-	Engine control unit -J623- (BSF, CAXC, CBZB, CCZB, CDAA, CGGB, CHGA and CMXA)	87a
			30 A	-	Engine control unit -J623- (CAYB, CAYC, CFHC and CFJA)
F14	19	Fuse 14 on fuse holder B -SB14-	20 A	-	Ignition coil 1 with output stage -N70- (CAXC, CCZB, CDAA and CGGB)	87a
					Ignition coil 2 with output stage -N127- (CAXC, CCZB, CDAA and CGGB)
					Ignition transformer -N152- (BSF, CBZB, CHGA and CMXA)
					Fuel pressure regulating valve -N276- (CAYB, CAYC, CFHC and CFJA)
					Fuel metering valve -N290- (CAYB, CAYC, CFHC and CFJA)
					Ignition coil 3 with output stage -N291- (CAXC, CCZB, CDAA and CGGB)
					Ignition coil 4 with output stage -N292- (CAXC, CCZB, CDAA and CGGB)
F15	26	Fuse 15 on fuse holder B -SB15-	5 A	-	Fuel pump relay -J17- (CAYB, CAYC, CFHC and CFJA)	87a
					Electric fuel pump 2 relay -J49- (CFHC and CFJA)
					Automatic glow period control unit -J179- (CAYB, CAYC, CFHC and CFJA)
					Low heat output relay -J359-
					High heat output relay -J360-
			10 A	-	Injector, cylinder 1 -N30- (CGGB)
					Injector, cylinder 2 -N31- (CGGB)
					Injector, cylinder 3 -N32- (CGGB)
					Injector, cylinder 4 -N33- (CGGB)
					Lambda probe heater -Z19- (CAXC and CBZB)
					Lambda probe 1 heater after catalytic converter -Z29- (CAXC and CBZB)
			15 A	-	Sender for gas gauge -G707- (CHGA)
					Gas mode control unit -J659- (CHGA)
					Gas injection valve 1 -N366- (CHGA)
					Gas injection valve 2 -N367- (CHGA)
					Gas injection valve 3 -N368- (CHGA)
					Gas injection valve 4 -N369- (CHGA)
					High pressure valve for gas mode -N372- (CHGA)
					Gas reservoir valve -N495- (CHGA)
F16	23	Fuse 16 on fuse holder B -SB16-	30 A	-	Onboard supply control unit -J519- (via C/42), right headlight bulb supply	30a
F17	18	Fuse 17 on fuse holder B -SB17-	15 A	-	Dual tone horn relay -J4-	30a
F18	17	Fuse 18 on fuse holder B -SB18-	-	-	vacant
F19	12	Fuse 19 on fuse holder B -SB19-	30 A	-	Wiper motor control unit -J400- , driver side	30a
F20	13	Fuse 20 on fuse holder B -SB20-	10 A	-	Coolant circulation pump -V50- (CAXC and CBZB)	87a
			20 A	-	Fuel pressure regulating valve -N276- (CCZB and CDAA)
F21	16	Fuse 21 on fuse holder B -SB21-	10 A	-	Lambda probe heater -Z19- (CAYB, CAYC, CFHC and CFJA)	87a
			15 A	-	Lambda probe heater -Z19- (BSF, CCZB, CDAA, CGGB, CHGA and CMXA)
					Lambda probe 1 heater after catalytic converter -Z29- (BSF, CCZB, CDAA, CGGB, CHGA and CMXA)
F22	14	Fuse 22 on fuse holder B -SB22-	5 A	-	Clutch position sender -G476-	87a
F23	21	Fuse 23 on fuse holder B -SB23-	5 A	-	Continued coolant circulation relay -J151- (CCZB and CDAA)	87a
					Secondary air pump relay -J299- (CHGA and CMXA)
			10 A	-	Air mass meter -G70- (CFHC and CFJA)
					Intake manifold preheating relay -J81- (CAYC)
					Charge pressure control solenoid valve -N75- (CAYB, CAYC, CFHC and CFJA)
					Exhaust gas recirculation cooler change-over valve -N345- (CAYB, CAYC, CFHC and CFJA)
			15 A	-	Fuel pressure regulating valve -N276- (CAXC and CBZB)
F24	11	Fuse 24 on fuse holder B -SB24-	10 A	-	Radiator fan control unit C1781 -J293-	87a
					Additional coolant pump relay -J496- (CAXC and CBZB)
					Engine component current supply relay -J757- (CCZB and CDAA)
					Charge pressure control solenoid valve -N75- (CAXC, CCZB and CDAA)
					Activated charcoal filter system solenoid valve 1 -N80- (BSF, CAXC, CBZB, CCZB, CDAA, CGGB, CHGA and CMXA)
					Variable intake manifold change-over valve -N156- (BSF, CHGA and CMXA)
					Inlet camshaft control valve 1 -N205- (CAXC, CCZB and CDAA)
					Turbocharger air recirculation valve -N249- (CAXC, CCZB and CDAA)
					Intake manifold flap valve -N316- (CCZB and CDAA)
					Oil pressure warning lamp -N428- (CCZB and CDAA)
					Refrigerant circulation solenoid valve -N492- (CBZB)
					Radiator fan -V7-
					Coolant circulation pump 2 -V178- (CAYB, CAYC, CFHC and CFJA)
F25	31	Fuse 25 on fuse holder B -SB25-	40 A	-	ABS control unit -J104-	30a
F26	35	Fuse 26 on fuse holder B -SB26-	30 A	-	Onboard supply control unit -J519- (via A/1), left headlight bulb supply	30a
F27	1	Fuse 27 on fuse holder B -SB27-	40 A	-	Secondary air pump motor -V101- (CHGA and CMXA)	87a
			50 A	-	Automatic glow period control unit -J179- (CAYB, CAYC, CFHC and CFJA)	30a
F28	4	Fuse 28 on fuse holder B -SB28-	-	-	vacant
F29	2	Fuse 29 on fuse holder B -SB29-	50 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
F30	3	Fuse 30 on fuse holder B -SB30-	50 A	-	X-contact relief relay -J59-	30a

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Position of fuses, from November 2011

No.	T40a	Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	32	Fuse 1 on fuse holder B -SB1-	30 A	-	Front passenger side wiper motor control unit -J584-	30a
F2	39	Fuse 2 on fuse holder B -SB2-	30 A	-	Mechatronic unit for dual clutch gearbox -J743- (BSF, CAYC and CDAA)	30a
F3	38	Fuse 3 on fuse holder B -SB3-	5 A	-	Battery monitor control unit -J367- (CAYC and CBZB with stop/start system)	30a
					Onboard supply control unit -J519- (via A/24), reference voltage
F4	27	Fuse 4 on fuse holder B -SB4-	20 A	-	ABS control unit -J104-	30a
F5	40	Fuse 5 on fuse holder B -SB5-	15 A	-	Mechatronic unit for dual clutch gearbox -J743- (BSF, CAYC, CCZB, CDAA and CFHC)	30a
F6	25	Fuse 6 on fuse holder B -SB6-	5 A	-	Control unit in dash panel insert -J285- (without stop/start system)	30a
					Steering column electronics control unit -J527-
F7	33	Fuse 7 on fuse holder B -SB7-	40 A	-	Terminal 15 voltage supply relay 2 -J681-	30a
F8	34	Fuse 8 on fuse holder B -SB8-	15 A	-	Control unit with display for radio and navigation system -J503-	30a
					Voltage stabiliser -J532- (CAYC and CBZB with stop/start system)
					Radio -R-
F9	30	Fuse 9 on fuse holder B -SB9-	5 A	-	Telephone transmitter and receiver unit -R36- (without stop/start system)	30a
F10	28	Fuse 10 on fuse holder B -SB10-	5 A	-	Main relay -J271- (CAXC and CBZB)	30a
					Terminal 30 voltage supply relay -J317- (CAYB, CAYC, CFHC and CFJA)
					Engine control unit -J623- (CAXC, CAYB, CAYC, CBZB, CFHC and CFJA)
			10 A	-	Main relay -J271- (CCZB and CDAA)
					Terminal 30 voltage supply relay -J317- (CGGB)
					Engine control unit -J623- (CCZB, CDAA and CGGB)
F11	20	Fuse 11 on fuse holder B -SB11-	-	-	vacant
F12	24	Fuse 12 on fuse holder B -SB12-	5 A	-	Data bus diagnostic interface -J533-	30a
F13	22	Fuse 13 on fuse holder B -SB13-	15 A	-	Engine control unit -J623- (BSF, CAXC, CBZB, CCZB, CDAA, CGGB, CHGA and CMXA)	87a
			30 A	-	Engine control unit -J623- (CAYB, CAYC, CFHC and CFJA)
F14	19	Fuse 14 on fuse holder B -SB14-	20 A	-	Ignition coil 1 with output stage -N70- (CAXC, CCZB, CDAA and CGGB)	87a
					Ignition coil 2 with output stage -N127- (CAXC, CCZB, CDAA and CGGB)
					Ignition transformer -N152- (BSF, CBZB, CHGA and CMXA)
					Fuel pressure regulating valve -N276- (CAYB, CAYC, CFHC and CFJA)
					Fuel metering valve -N290- (CAYB, CAYC, CFHC and CFJA)
					Ignition coil 3 with output stage -N291- (CAXC, CCZB, CDAA and CGGB)
					Ignition coil 4 with output stage -N292- (CAXC, CCZB, CDAA and CGGB)
F15	26	Fuse 15 on fuse holder B -SB15-	5 A	-	Fuel pump relay -J17- (CAYB, CAYC, CFHC and CFJA)	87a
					Electric fuel pump 2 relay -J49- (CFHC and CFJA)
					Automatic glow period control unit -J179- (CAYB, CAYC, CFHC and CFJA)
					Low heat output relay -J359- (Diesel)
					High heat output relay -J360- (Diesel)
			10 A	-	Injector, cylinder 1 -N30- (CGGB)
					Injector, cylinder 2 -N31- (CGGB)
					Injector, cylinder 3 -N32- (CGGB)
					Injector, cylinder 4 -N33- (CGGB)
					Low heat output relay -J359- (petrol)
					High heat output relay -J360- (petrol)
					Lambda probe heater -Z19- (CAXC and CBZB)
					Lambda probe 1 heater after catalytic converter -Z29- (CAXC and CBZB)
			15 A	-	Sender for gas gauge -G707- (CHGA)
					Gas mode control unit -J659- (CHGA)
					Gas injection valve 1 -N366- (CHGA)
					Gas injection valve 2 -N367- (CHGA)
					Gas injection valve 3 -N368- (CHGA)
					Gas injection valve 4 -N369- (CHGA)
					High pressure valve for gas mode -N372- (CHGA)
					Gas reservoir valve -N495- (CHGA)
F16	23	Fuse 16 on fuse holder B -SB16-	30 A	-	Onboard supply control unit -J519- (via C/42), right headlight bulb supply	30a
F17	18	Fuse 17 on fuse holder B -SB17-	15 A	-	Dual tone horn relay -J4-	30a
F18	17	Fuse 18 on fuse holder B -SB18-	-	-	vacant
F19	12	Fuse 19 on fuse holder B -SB19-	30 A	-	Wiper motor control unit -J400- , driver side	30a
F20	13	Fuse 20 on fuse holder B -SB20-	10 A	-	Coolant circulation pump -V50- (CAXC and CBZB)	87a
			20 A	-	Fuel pressure regulating valve -N276- (CCZB and CDAA)
F21	16	Fuse 21 on fuse holder B -SB21-	10 A	-	Lambda probe heater -Z19- (CAYB, CAYC, CFHC and CFJA)	87a
			15 A	-	Lambda probe heater -Z19- (BSF, CCZB, CDAA, CGGB, CHGA and CMXA)
					Lambda probe 1 heater after catalytic converter -Z29- (BSF, CCZB, CDAA, CGGB, CHGA and CMXA)
F22	14	Fuse 22 on fuse holder B -SB22-	5 A	-	Brake pedal position sender -G100-	87a
					Clutch position sender -G476- (only models with manual gearbox)
F23	21	Fuse 23 on fuse holder B -SB23-	5 A	-	Continued coolant circulation relay -J151- (CCZB and CDAA)	87a
					Secondary air pump relay -J299- (CHGA and CMXA)
			10 A	-	Air mass meter -G70- (CFHC and CFJA)
					Intake manifold preheating relay -J81- (CAYC)
					Charge pressure control solenoid valve -N75- (CAYB, CAYC, CFHC and CFJA)
					Exhaust gas recirculation cooler change-over valve -N345- (CAYB, CAYC, CFHC and CFJA)
			15 A	-	Fuel pressure regulating valve -N276- (CAXC and CBZB)
F24	11	Fuse 24 on fuse holder B -SB24-	10 A	-	Radiator fan control unit C1781 -J293-	87a
					Additional coolant pump relay -J496- (CAXC and CBZB)
					Engine component current supply relay -J757- (CCZB and CDAA)
					Charge pressure control solenoid valve -N75- (CAXC, CCZB and CDAA)
					Activated charcoal filter system solenoid valve 1 -N80- (BSF, CAXC, CBZB, CCZB, CDAA, CGGB, CHGA and CMXA)
					Variable intake manifold change-over valve -N156- (BSF, CHGA and CMXA)
					Inlet camshaft control valve 1 -N205- (CAXC, CCZB and CDAA)
					Turbocharger air recirculation valve -N249- (CAXC, CCZB and CDAA)
					Intake manifold flap valve -N316- (CCZB and CDAA)
					Oil pressure warning lamp -N428- (CCZB and CDAA)
					Refrigerant circulation solenoid valve -N492- (CBZB)
					Radiator fan -V7-
					Coolant circulation pump 2 -V178- (CAYB, CAYC, CFHC and CFJA)
F25	31	Fuse 25 on fuse holder B -SB25-	40 A	-	ABS control unit -J104-	30a
F26	35	Fuse 26 on fuse holder B -SB26-	30 A	-	Onboard supply control unit -J519- (via A/1), left headlight bulb supply	30a
F27	1	Fuse 27 on fuse holder B -SB27-	40 A	-	Secondary air pump motor -V101- (CHGA and CMXA)	87a
			50 A	-	Automatic glow period control unit -J179- (CAYB, CAYC, CFHC and CFJA)	30a
F28	4	Fuse 28 on fuse holder B -SB28-	-	-	vacant
F29	2	Fuse 29 on fuse holder B -SB29-	50 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
F30	3	Fuse 30 on fuse holder B -SB30-	50 A	-	X-contact relief relay -J59-	30a

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SEAT ALTEA 2011 Fuses (SC) in fuse holder under left dash panel

Fuses (SC) in fuse holder under left dash panel

Get access to all wiring diagrams of the car

-	Fuse colours

50 A - red

40 A - orange

30 A - green

25 A - white

20 A - yellow

15 A - blue

10 A - red

7.5 A - brown

5 A - beige

3 A - purple

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Position of fuses, from March 2009

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder C -SC1-	-	-	vacant
2	-	Fuse 2 on fuse holder C -SC2-	-	-	vacant
3	-	Fuse 3 on fuse holder C -SC3-	-	-	vacant
4	-	Fuse 4 on fuse holder C -SC4-	-	-	vacant
5	-	Fuse 5 on fuse holder C -SC5-	-	-	vacant
6	-	Fuse 6 on fuse holder C -SC6-	-	-	vacant
7	-	Fuse 7 on fuse holder C -SC7-	-	-	vacant
8	-	Fuse 8 on fuse holder C -SC8-	-	-	vacant
9	-	Fuse 9 on fuse holder C -SC9-	5 A	-	Airbag control unit -J234-	15a
					Front passenger side airbag deactivated warning lamp -K145-
10	-	Fuse 10 on fuse holder C -SC10-	10 A	-	Roof display unit -J702- (rear seats)	15a
11	-	Fuse 11 on fuse holder C -SC11-	-	-	vacant
12	-	Fuse 12 on fuse holder C -SC12-	10 A	-	Power output module for left headlight -J667-	15a
13	-	Fuse 13 on fuse holder C -SC13-	5 A	-	Heater/heat output switch -E16-	15a
					Tyre pressure monitor button -E226-
					TCS and ESP button -E256-
					Reversing light switch -F4-
					High pressure sender -G65-
					Oil level and oil temperature sender -G266- (CAXC and CDAA)
					Air conditioning system control unit -J301-
					Automatic anti-dazzle interior mirror -Y7-
14	-	Fuse 14 on fuse holder C -SC14-	10 A	-	Light switch -E1-	15a
					Tiptronic switch -F189- (BVY and BVZ)
					Brake pedal position sender -G100-
					ABS control unit -J104-
					Control unit in dash panel insert -J285-
					Terminal 30 voltage supply relay -J317- (BSE, BSF and CCSA)
					Trailer detector control unit -J345-
					Current supply relay for Simos control unit -J363- (BSE, BSF and CCSA)
					Parking aid control unit -J446-
					Four-wheel drive control unit -J492-
					Power steering control unit -J500-
					Data bus diagnostic interface -J533-
					Fuel pump control unit -J538- (BVY, BVZ, BWA, BXW, CAXC and CDAA)
					Selector lever sensors control unit -J587- (AZV, BKD, BLS, BMM, BWA and CDAA)
					Engine control unit -J623- (AZV, BKD, BLS, BMM, BMN, BSE, BSF, BVY, BVZ, BWA, BXE, BXW, CAXC, CCSA, CDAA and CEGA)
					Fuel supply relay -J643- (BXW)
					Mechatronic unit for dual clutch gearbox -J743- (AZV, BKD, BLS, BMM, BWA and CDAA)
15	-	Fuse 15 on fuse holder C -SC15-	10 A	-	Diagnosis connection -U31- (T16j/1)	15a
					Headlight range control regulator -E102-
					Air mass meter -G70- (AZV, BKD, BLS, BMM, BMN, BWA, BXE, CDAA and CEGA)
					Cornering light and headlight range control unit -J745-
					Intake manifold preheating heater element -N51- (AZV, BKD, BLS, BMM, BMN, BSE, BSF, BXE, CCSA and CEGA)
					Heater element for crankcase breather -N79- (BXW)
					Left headlight range control motor -V48-
					Right headlight range control motor -V49-
					Heated windscreen -Z2-
					Left washer jet heater element -Z20-
					Right washer jet heater element -Z21-
16	-	Fuse 16 on fuse holder C -SC16-	10 A	-	Power output module for right headlight -J668-	15a
17	-	Fuse 17 on fuse holder C -SC17-	10 A	-	Fuel pressure regulating valve -N276- (BWA)	87a
18	-	Fuse 18 on fuse holder C -SC18-	-	-	vacant
19	-	Fuse 19 on fuse holder C -SC19-	-	-	vacant
20	-	Fuse 20 on fuse holder C -SC20-	10 A	-	Heater/heat output switch -E16-	30a
					Tiptronic switch -F189-
					Automatic gearbox control unit -J217- (BVY and BVZ)
					Climatronic control unit -J255-
					Air conditioning system control unit -J301-
					Selector lever sensors control unit -J587- (AZV, BKD, BLS, BMM, BWA and CDAA)
21	-	Fuse 21 on fuse holder C -SC21-	-	-	vacant
22	-	Fuse 22 on fuse holder C -SC22-	5 A	-	Interior monitoring sensor -G273-	30a
					Alarm horn -H12-
					Dual tone horn relay -J4-
					Onboard supply control unit -J519- (via C/1), supply alarm
23	-	Fuse 23 on fuse holder C -SC23-	10 A	-	Diagnosis connection -U31- (T16j/16)	30a
					Light switch -E1-
					Rain and light detector sensor -G397-
					Heated rear window relay -J9-
24	-	Fuse 24 on fuse holder C -SC24-	-	-	vacant
25	-	Fuse 25 on fuse holder C -SC25-	20 A	-	Multifunction switch -F125- (BVY and BVZ)	15a
					Automatic gearbox control unit -J217- (BVY and BVZ)
26	-	Fuse 26 on fuse holder C -SC26-	20 A	-	Vacuum pump relay -J57- (BVY and BVZ)	15a
27	-	Fuse 27 on fuse holder C -SC27-	10 A	-	Roof display unit -J702- (rear seats)	15a
28	-	Fuse 28 on fuse holder C -SC28-	20 A	-	Rear window wiper motor -V12-	75a
29	-	Fuse 29 on fuse holder C -SC29-	-	-	vacant
30	-	Fuse 30 on fuse holder C -SC30-	20 A	-	Cigarette lighter -U1-	75a
					12 V socket -U5- , on rear sockets
					12 V socket 2 -U18- , in luggage compartment
31	-	Fuse 31 on fuse holder C -SC31-	-	-	vacant
32	-	Fuse 32 on fuse holder C -SC32-	-	-	vacant
33	-	Fuse 33 on fuse holder C -SC33-	40 A	-	Heater/heat output switch -E16-	75a
					Air conditioning system control unit -J301-
34	-	Fuse 34 on fuse holder C -SC34-	-	-	vacant
35	-	Fuse 35 on fuse holder C -SC35-	-	-	vacant
36	-	Fuse 36 on fuse holder C -SC36-	10 A	-	Lambda probe 1 heater after catalytic converter -Z29- (BWA)	87a
37	-	Fuse 37 on fuse holder C -SC37-	10 A	-	Lambda probe heater -Z19- (BWA)	87a
38	-	Fuse 38 on fuse holder C -SC38-	10 A	-	Charge pressure control solenoid valve -N75- (BWA)	87a
					Activated charcoal filter system solenoid valve 1 -N80- (BWA)
					Turbocharger air recirculation valve -N249- (BWA)
39	-	Fuse 39 on fuse holder C -SC39-	15 A	-	Trailer detector control unit -J345-	30a
40	-	Fuse 40 on fuse holder C -SC40-	20 A	-	Trailer detector control unit -J345-	30a
41	-	Fuse 41 on fuse holder C -SC41-	20 A	-	Trailer detector control unit -J345-	30a
42	-	Fuse 42 on fuse holder C -SC42-	20 A	-	Onboard supply control unit -J519- (via B/42), supply ignition	30a
43	-	Fuse 43 on fuse holder C -SC43-	40 A	-	Trailer detector control unit -J345-	30a
44	-	Fuse 44 on fuse holder C -SC44-	25 A	-	Heated rear window relay -J9-	30a
45	-	Fuse 45 on fuse holder C -SC45-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
46	-	Fuse 46 on fuse holder C -SC46-	30 A	-	Rear left door control unit -J388-	30a
					Rear right door control unit -J389-
47	-	Fuse 47 on fuse holder C -SC47-	15 A	-	Fuel pump relay -J17- (AZV, BKD, BLS, BMM, BMN, BSE, BSF, BXE, BXW, CCSA and CEGA)	30a
					Electric fuel pump 2 relay -J49- (CEGA)
					Current supply relay for Simos control unit -J363- (BSE, BSF and CCSA)
					Fuel pump control unit -J538- (BVY, BVZ, BWA, BXW, CAXC and CDAA)
					Fuel supply relay -J643- (BXW)
					Motronic current supply relay -2- -J670- (BWA)
48	-	Fuse 48 on fuse holder C -SC48-	20 A	-	Onboard supply control unit -J519- (without Autolock function) (via B/1), supply central locking	30a
49	-	Fuse 49 on fuse holder C -SC49-	40 A	-	Fresh air blower -V2- (Climatronic only)	30a
50	-	Fuse 50 on fuse holder C -SC50-	30 A	-	Heated backrest control unit -J774-	30a
51	-	Fuse 51 on fuse holder C -SC51-	20 A	-	Sliding sunroof adjustment control unit -J245-	30a
52	-	Fuse 52 on fuse holder C -SC52-	20 A	-	Headlight washer system relay -J39-	30a
53	-	Fuse 53 on fuse holder C -SC53-	-	-	vacant
54	-	Fuse 54 on fuse holder C -SC54-	5 A	-	Taxi meter -G41-	30a
55	-	Fuse 55 on fuse holder C -SC55-	-	-	vacant
56	-	Fuse 56 on fuse holder C -SC56-	15 A	-	Two-way radio socket -U4-	30a
57	-	Fuse 57 on fuse holder C -SC57-	-	-	vacant
58	-	Fuse 58 on fuse holder C -SC58-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
					Onboard supply control unit -J519- (with Autolock function) (via B/1), supply central locking

Back to overview

Position of fuses, from May 2009

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder C -SC1-	-	-	vacant
2	-	Fuse 2 on fuse holder C -SC2-	-	-	vacant
3	-	Fuse 3 on fuse holder C -SC3-	-	-	vacant
4	-	Fuse 4 on fuse holder C -SC4-	-	-	vacant
5	-	Fuse 5 on fuse holder C -SC5-	-	-	vacant
6	-	Fuse 6 on fuse holder C -SC6-	-	-	vacant
7	-	Fuse 7 on fuse holder C -SC7-	-	-	vacant
8	-	Fuse 8 on fuse holder C -SC8-	-	-	vacant
9	-	Fuse 9 on fuse holder C -SC9-	5 A	-	Airbag control unit -J234-	15a
					Front passenger side airbag deactivated warning lamp -K145-
10	-	Fuse 10 on fuse holder C -SC10-	10 A	-	Roof display unit -J702- (rear seats)	15a
11	-	Fuse 11 on fuse holder C -SC11-	-	-	vacant
12	-	Fuse 12 on fuse holder C -SC12-	10 A	-	Power output module for left headlight -J667-	15a
13	-	Fuse 13 on fuse holder C -SC13-	5 A	-	Heater/heat output switch -E16-	15a
					Tyre pressure monitor button -E226-
					TCS and ESP button -E256-
					Stop/start system button -E693- (CAYC with stop/start system)
					Reversing light switch -F4-
					High pressure sender -G65-
					Oil level and oil temperature sender -G266- (CAXC, CAYC, CCZB, CDAA and CHGA)
					Air conditioning system control unit -J301-
					Start/Stop operation warning lamp -K259- (CAYC with stop/start system)
					Automatic anti-dazzle interior mirror -Y7-
14	-	Fuse 14 on fuse holder C -SC14-	10 A	-	Light switch -E1-	15a
					Brake pedal position sender -G100-
					ABS control unit -J104-
					Control unit in dash panel insert -J285-
					Terminal 30 voltage supply relay -J317- (BSE, BSF, CCSA and CHGA)
					Trailer detector control unit -J345-
					Current supply relay for Simos control unit -J363- (BSE, BSF, CCSA and CHGA)
					Parking aid control unit -J446-
					Four-wheel drive control unit -J492-
					Power steering control unit -J500-
					Voltage stabiliser -J532- (CAYC with stop/start system)
					Data bus diagnostic interface -J533-
					Fuel pump control unit -J538- (CAXC, CCZB and CDAA)
					Selector lever sensors control unit -J587- (AZV, BKD, BLS, BMM, CAYC, CCZB and CDAA)
					Engine control unit -J623- (AZV, BKD, BLS, BMM, BSE, BSF, BXE, BXF, BXW, CAXC, CAYC, CCSA, CCZB, CDAA, CEGA and CHGA)
					Fuel supply relay -J643- (BXW)
					Terminal 50 voltage supply relay -J682- (CAYC with stop/start system)
					Mechatronic unit for dual clutch gearbox -J743- (AZV, BKD, BLS, BMM, BSF, CAYC, CCZB and CDAA)
					Starter motor relay 2 -J907- (CAYC with stop/start system)
15	-	Fuse 15 on fuse holder C -SC15-	10 A	-	Diagnosis connection -U31- (T16j/1)	15a
					Headlight range control regulator -E102-
					Air mass meter -G70- (AZV, BKD, BLS, BMM, BXE, BXF, CAYC, CCZB, CDAA and CEGA)
					Cornering light and headlight range control unit -J745-
					Intake manifold preheating heater element -N51- (AZV, BKD, BLS, BMM, BSE, BSF, BXE, BXF, CCSA and CEGA)
					Heater element for crankcase breather -N79- (BXW)
					Left headlight range control motor -V48-
					Right headlight range control motor -V49-
					Heated windscreen -Z2-
					Left washer jet heater element -Z20-
					Right washer jet heater element -Z21-
16	-	Fuse 16 on fuse holder C -SC16-	10 A	-	Power output module for right headlight -J668-	15a
17	-	Fuse 17 on fuse holder C -SC17-	10 A	-	Roof display unit -J702- (with stop/start system)	30a
18	-	Fuse 18 on fuse holder C -SC18-	5 A	-	Control unit in dash panel insert -J285- (with stop/start system)	30a
19	-	Fuse 19 on fuse holder C -SC19-	15 A	-	Control unit with display for radio and navigation system -J503- (with stop/start system)	30a
					Radio -R- (with stop/start system)
20	-	Fuse 20 on fuse holder C -SC20-	10 A	-	Tiptronic switch -F189-	30a
					Climatronic control unit -J255-
					Heater control unit -J65-
					Air conditioning system control unit -J301-
					Selector lever sensors control unit -J587- (AZV, BKD, BLS, BMM, BSF, CAYC, CCZB and CDAA)
21	-	Fuse 21 on fuse holder C -SC21-	-	-	vacant
22	-	Fuse 22 on fuse holder C -SC22-	5 A	-	Interior monitoring sensor -G273-	30a
					Alarm horn -H12-
					Dual tone horn relay -J4-
					Onboard supply control unit -J519- (via C/1), supply alarm
23	-	Fuse 23 on fuse holder C -SC23-	10 A	-	Diagnosis connection -U31- (T16j/16)	30a
					Light switch -E1-
					Rain and light detector sensor -G397-
					Heated rear window relay -J9-
24	-	Fuse 24 on fuse holder C -SC24-	-	-	vacant
25	-	Fuse 25 on fuse holder C -SC25-	-	-	vacant
26	-	Fuse 26 on fuse holder C -SC26-	20 A	-	Vacuum pump relay -J57- (BSF, BSE and CCSA) (from November 2009)	15a
27	-	Fuse 27 on fuse holder C -SC27-	10 A	-	Roof display unit -J702- (without stop/start system)	15a
28	-	Fuse 28 on fuse holder C -SC28-	20 A	-	Rear window wiper motor -V12-	75a
29	-	Fuse 29 on fuse holder C -SC29-	-	-	vacant
30	-	Fuse 30 on fuse holder C -SC30-	20 A	-	Cigarette lighter -U1-	75a
					12 V socket -U5- , on rear sockets
					12 V socket 2 -U18- , in luggage compartment
31	-	Fuse 31 on fuse holder C -SC31-	-	-	vacant
32	-	Fuse 32 on fuse holder C -SC32-	-	-	vacant
33	-	Fuse 33 on fuse holder C -SC33-	40 A	-	Heater/heat output switch -E16-	75a
					Air conditioning system control unit -J301-
34	-	Fuse 34 on fuse holder C -SC34-	-	-	vacant
35	-	Fuse 35 on fuse holder C -SC35-	-	-	vacant
36	-	Fuse 36 on fuse holder C -SC36-	-	-	vacant
37	-	Fuse 37 on fuse holder C -SC37-	-	-	vacant
38	-	Fuse 38 on fuse holder C -SC38-	-	-	vacant
39	-	Fuse 39 on fuse holder C -SC39-	15 A	-	Trailer detector control unit -J345-	30a
40	-	Fuse 40 on fuse holder C -SC40-	20 A	-	Trailer detector control unit -J345-	30a
41	-	Fuse 41 on fuse holder C -SC41-	20 A	-	Trailer detector control unit -J345-	30a
42	-	Fuse 42 on fuse holder C -SC42-	20 A	-	Onboard supply control unit -J519- (via B/42), supply ignition	30a
43	-	Fuse 43 on fuse holder C -SC43-	40 A	-	Trailer detector control unit -J345-	30a
44	-	Fuse 44 on fuse holder C -SC44-	25 A	-	Heated rear window relay -J9-	30a
45	-	Fuse 45 on fuse holder C -SC45-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
46	-	Fuse 46 on fuse holder C -SC46-	30 A	-	Rear left door control unit -J388-	30a
					Rear right door control unit -J389-
47	-	Fuse 47 on fuse holder C -SC47-	15 A	-	Fuel pump relay -J17- (AZV, BKD, BLS, BMM, BSE, BSF, BXE, BXF, BXW, CAYC, CCSA, CEGA, and CHGA)	30a
					Electric fuel pump 2 relay -J49- (CEGA)
					Current supply relay for Simos control unit -J363- (BSE, BSF, CCSA and CHGA)
					Fuel pump control unit -J538- (CAXC, CCZB and CDAA)
					Fuel supply relay -J643- (BXW)
48	-	Fuse 48 on fuse holder C -SC48-	20 A	-	Onboard supply control unit -J519- (without Autolock function) (via B/1), supply central locking	30a
49	-	Fuse 49 on fuse holder C -SC49-	40 A	-	Fresh air blower -V2- (Climatronic only)	30a
50	-	Fuse 50 on fuse holder C -SC50-	30 A	-	Heated backrest control unit -J774-	30a
51	-	Fuse 51 on fuse holder C -SC51-	20 A	-	Sliding sunroof adjustment control unit -J245-	30a
52	-	Fuse 52 on fuse holder C -SC52-	20 A	-	Headlight washer system relay -J39-	30a
53	-	Fuse 53 on fuse holder C -SC53-	-	-	vacant
54	-	Fuse 54 on fuse holder C -SC54-	5 A	-	Taxi meter -G41-	30a
55	-	Fuse 55 on fuse holder C -SC55-	-	-	vacant
56	-	Fuse 56 on fuse holder C -SC56-	15 A	-	Two-way radio socket -U4-	30a
57	-	Fuse 57 on fuse holder C -SC57-	10 A	-	Telephone transmitter and receiver unit -R36- (with stop/start system)	30a
58	-	Fuse 58 on fuse holder C -SC58-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
					Onboard supply control unit -J519- (with Autolock function) (via B/1), supply central locking

Back to overview

Position of fuses, from June 2010

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder C -SC1-	-	-	vacant
2	-	Fuse 2 on fuse holder C -SC2-	-	-	vacant
3	-	Fuse 3 on fuse holder C -SC3-	-	-	vacant
4	-	Fuse 4 on fuse holder C -SC4-	-	-	vacant
5	-	Fuse 5 on fuse holder C -SC5-	-	-	vacant
6	-	Fuse 6 on fuse holder C -SC6-	-	-	vacant
7	-	Fuse 7 on fuse holder C -SC7-	-	-	vacant
8	-	Fuse 8 on fuse holder C -SC8-	-	-	vacant
9	-	Fuse 9 on fuse holder C -SC9-	5 A	-	Airbag control unit -J234-	15a
					Front passenger side airbag deactivated warning lamp -K145-
10	-	Fuse 10 on fuse holder C -SC10-	10 A	-	Roof display unit -J702- (rear seats)	15a
11	-	Fuse 11 on fuse holder C -SC11-	-	-	vacant
12	-	Fuse 12 on fuse holder C -SC12-	10 A	-	Power output module for left headlight -J667-	15a
13	-	Fuse 13 on fuse holder C -SC13-	5 A	-	Heater/heat output switch -E16-	15a
					Tyre pressure monitor button -E226-
					TCS and ESP button -E256-
					Stop/start system button -E693- (CAYC and CBZB with stop/start system)
					Reversing light switch -F4-
					High pressure sender -G65-
					Oil level and oil temperature sender -G266-
					Air conditioning system control unit -J301-
					Start/Stop operation warning lamp -K259- (CAYC and CBZB with stop/start system)
					Automatic anti-dazzle interior mirror -Y7-
14	-	Fuse 14 on fuse holder C -SC14-	10 A	-	Light switch -E1-	15a
					Brake pedal position sender -G100-
					ABS control unit -J104-
					Control unit in dash panel insert -J285-
					Terminal 30 voltage supply relay -J317- (BSE, BSF, CCSA, CHGA and CMXA)
					Trailer detector control unit -J345-
					Current supply relay for Simos control unit -J363- (BSE, BSF, CCSA, CHGA and CMXA)
					Parking aid control unit -J446-
					Four-wheel drive control unit -J492-
					Power steering control unit -J500-
					Voltage stabiliser -J532- (CAYC and CBZB with stop/start system)
					Data bus diagnostic interface -J533-
					Fuel pump control unit -J538- (CAXC, CBZB, CCZB and CDAA)
					Selector lever sensors control unit -J587- (BKD, BLS, BMM, CAYC, CCZB, CDAA, CFHC and BSF)
					Engine control unit -J623- (BKD, BLS, BMM, BSE, BSF, BXE, BXF, CAXC, CAYB, CAYC, CBZB, CCSA, CCZB, CDAA, CEGA, CFHC, CFJA, CGGB, CHGA and CMXA)
					Fuel supply relay -J643- (CGGB)
					Terminal 50 voltage supply relay -J682- (CAYC and CBZB with stop/start system)
					Mechatronic unit for dual clutch gearbox -J743- (BKD, BLS, BMM, BSF, CAYC, CCZB, CDAA and CFHC)
					Starter motor relay 2 -J907- (CAYC and CBZB with stop/start system)
15	-	Fuse 15 on fuse holder C -SC15-	10 A	-	Diagnosis connection -U31- (T16j/1)	15a
					Headlight range control regulator -E102-
					Air mass meter -G70- (BKD, BLS, BMM, BXE, BXF, CAYB, CAYC, CCZB, CDAA and CEGA)
					Cornering light and headlight range control unit -J745-
					Gas mode control unit -J659- (CHGA)
					Intake manifold preheating heater element -N51- (BKD, BLS, BMM, BSE, BSF, BXE, BXF, CCSA, CEGA and CMXA)
					Heater element for crankcase breather -N79- (CFHC and CFJA)
					Left headlight range control motor -V48-
					Right headlight range control motor -V49-
					Heated windscreen -Z2-
					Left washer jet heater element -Z20-
					Right washer jet heater element -Z21-
16	-	Fuse 16 on fuse holder C -SC16-	10 A	-	Power output module for right headlight -J668-	15a
17	-	Fuse 17 on fuse holder C -SC17-	10 A	-	Roof display unit -J702- (with stop/start system)	30a
18	-	Fuse 18 on fuse holder C -SC18-	5 A	-	Control unit in dash panel insert -J285- (with stop/start system)	30a
19	-	Fuse 19 on fuse holder C -SC19-	15 A	-	Control unit with display for radio and navigation system -J503- (with stop/start system)	30a
					Radio -R- (with stop/start system)
20	-	Fuse 20 on fuse holder C -SC20-	10 A	-	Tiptronic switch -F189-	30a
					Climatronic control unit -J255-
					Heater control unit -J65-
					Air conditioning system control unit -J301-
					Selector lever sensors control unit -J587- (BKD, BLS, BMM, BSF, CAYC, CCZB, CDAA and CFHC)
21	-	Fuse 21 on fuse holder C -SC21-	-	-	vacant
22	-	Fuse 22 on fuse holder C -SC22-	5 A	-	Interior monitoring sensor -G273-	30a
					Alarm horn -H12-
					Dual tone horn relay -J4-
					Onboard supply control unit -J519- (via C/1), supply alarm
23	-	Fuse 23 on fuse holder C -SC23-	10 A	-	Diagnosis connection -U31- (T16j/16)	30a
					Light switch -E1-
					Rain and light detector sensor -G397-
					Heated rear window relay -J9-
24	-	Fuse 24 on fuse holder C -SC24-	-	-	vacant
25	-	Fuse 25 on fuse holder C -SC25-	-	-	vacant
26	-	Fuse 26 on fuse holder C -SC26-	20 A	-	Vacuum pump relay -J57- (BSF, BSE and CCSA)	15a
27	-	Fuse 27 on fuse holder C -SC27-	10 A	-	Roof display unit -J702- (without stop/start system)	15a
28	-	Fuse 28 on fuse holder C -SC28-	20 A	-	Rear window wiper motor -V12-	75a
29	-	Fuse 29 on fuse holder C -SC29-	-	-	vacant
30	-	Fuse 30 on fuse holder C -SC30-	20 A	-	Cigarette lighter -U1-	75a
					12 V socket -U5- , on rear sockets
					12 V socket 2 -U18- , in luggage compartment
31	-	Fuse 31 on fuse holder C -SC31-	-	-	vacant
32	-	Fuse 32 on fuse holder C -SC32-	-	-	vacant
33	-	Fuse 33 on fuse holder C -SC33-	40 A	-	Heater/heat output switch -E16-	75a
					Air conditioning system control unit -J301-
34	-	Fuse 34 on fuse holder C -SC34-	-	-	vacant
35	-	Fuse 35 on fuse holder C -SC35-	-	-	vacant
36	-	Fuse 36 on fuse holder C -SC36-	-	-	vacant
37	-	Fuse 37 on fuse holder C -SC37-	-	-	vacant
38	-	Fuse 38 on fuse holder C -SC38-	-	-	vacant
39	-	Fuse 39 on fuse holder C -SC39-	15 A	-	Trailer detector control unit -J345-	30a
40	-	Fuse 40 on fuse holder C -SC40-	20 A	-	Trailer detector control unit -J345-	30a
41	-	Fuse 41 on fuse holder C -SC41-	20 A	-	Trailer detector control unit -J345-	30a
42	-	Fuse 42 on fuse holder C -SC42-	20 A	-	Onboard supply control unit -J519- (via B/42), supply ignition	30a
43	-	Fuse 43 on fuse holder C -SC43-	40 A	-	Trailer detector control unit -J345-	30a
44	-	Fuse 44 on fuse holder C -SC44-	25 A	-	Heated rear window relay -J9-	30a
45	-	Fuse 45 on fuse holder C -SC45-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
46	-	Fuse 46 on fuse holder C -SC46-	30 A	-	Rear left door control unit -J388-	30a
					Rear right door control unit -J389-
47	-	Fuse 47 on fuse holder C -SC47-	15 A	-	Fuel pump relay -J17- (BKD, BLS, BMM, BSE, BSF, BXE, BXF, CAYB, CAYC, CCSA, CEGA, CFHC, CFJA, CGGB, CHGA and CMXA)	30a
					Electric fuel pump 2 relay -J49- (CEGA, CFHC and CFJA)
					Current supply relay for Simos control unit -J363- (BSE, BSF, CCSA, CHGA and CMXA)
					Fuel pump control unit -J538- (CAXC, CBZB, CCZB and CDAA)
					Fuel supply relay -J643- (CGGB)
48	-	Fuse 48 on fuse holder C -SC48-	20 A	-	Onboard supply control unit -J519- (without Autolock function) (via B/1), supply central locking	30a
49	-	Fuse 49 on fuse holder C -SC49-	40 A	-	Fresh air blower -V2- (Climatronic only)	30a
50	-	Fuse 50 on fuse holder C -SC50-	30 A	-	Heated backrest control unit -J774-	30a
51	-	Fuse 51 on fuse holder C -SC51-	20 A	-	Sliding sunroof adjustment control unit -J245-	30a
52	-	Fuse 52 on fuse holder C -SC52-	20 A	-	Headlight washer system relay -J39-	30a
53	-	Fuse 53 on fuse holder C -SC53-	-	-	vacant
54	-	Fuse 54 on fuse holder C -SC54-	5 A	-	Taxi meter -G41-	30a
55	-	Fuse 55 on fuse holder C -SC55-	-	-	vacant
56	-	Fuse 56 on fuse holder C -SC56-	15 A	-	Two-way radio socket -U4-	30a
57	-	Fuse 57 on fuse holder C -SC57-	10 A	-	Telephone transmitter and receiver unit -R36- (with stop/start system)	30a
58	-	Fuse 58 on fuse holder C -SC58-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
					Onboard supply control unit -J519- (with Autolock function) (via B/1), supply central locking

Back to overview

Position of fuses, from June 2011

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder C -SC1-	-	-	vacant
2	-	Fuse 2 on fuse holder C -SC2-	-	-	vacant
3	-	Fuse 3 on fuse holder C -SC3-	-	-	vacant
4	-	Fuse 4 on fuse holder C -SC4-	-	-	vacant
5	-	Fuse 5 on fuse holder C -SC5-	-	-	vacant
6	-	Fuse 6 on fuse holder C -SC6-	-	-	vacant
7	-	Fuse 7 on fuse holder C -SC7-	-	-	vacant
8	-	Fuse 8 on fuse holder C -SC8-	-	-	vacant
9	-	Fuse 9 on fuse holder C -SC9-	5 A	-	Airbag control unit -J234-	15a
					Front passenger side airbag deactivated warning lamp -K145-
10	-	Fuse 10 on fuse holder C -SC10-	10 A	-	Roof display unit -J702- (rear seats)	15a
11	-	Fuse 11 on fuse holder C -SC11-	-	-	vacant
12	-	Fuse 12 on fuse holder C -SC12-	10 A	-	Power output module for left headlight -J667-	15a
13	-	Fuse 13 on fuse holder C -SC13-	5 A	-	Heater/heat output switch -E16-	15a
					Tyre pressure monitor button -E226-
					TCS and ESP button -E256-
					Stop/start system button -E693- (CAYC and CBZB with stop/start system)
					Reversing light switch -F4-
					High pressure sender -G65-
					Oil level and oil temperature sender -G266-
					Air conditioning system control unit -J301-
					Start/Stop operation warning lamp -K259- (CAYC and CBZB with stop/start system)
					Automatic anti-dazzle interior mirror -Y7-
14	-	Fuse 14 on fuse holder C -SC14-	10 A	-	Light switch -E1-	15a
					Brake pedal position sender -G100- (up to October 2011)
					ABS control unit -J104-
					Control unit in dash panel insert -J285-
					Terminal 30 voltage supply relay -J317- (BSF, CHGA and CMXA)
					Trailer detector control unit -J345-
					Current supply relay for Simos control unit -J363- (BSF, CHGA and CMXA)
					Parking aid control unit -J446-
					Four-wheel drive control unit -J492-
					Power steering control unit -J500-
					Voltage stabiliser -J532- (CAYC and CBZB with stop/start system)
					Data bus diagnostic interface -J533-
					Fuel pump control unit -J538- (CAXC, CBZB, CCZB and CDAA)
					Selector lever sensors control unit -J587- (CAYC, CCZB, CDAA, CFHC and BSF)
					Engine control unit -J623- (BSF, CAXC, CAYB, CAYC, CBZB, CCZB, CDAA, CFHC, CFJA, CGGB, CHGA and CMXA)
					Fuel supply relay -J643- (CGGB)
					Terminal 50 voltage supply relay -J682- (CAYC and CBZB with stop/start system)
					Mechatronic unit for dual clutch gearbox -J743- (BSF, CAYC, CCZB, CDAA and CFHC)
					Starter motor relay 2 -J907- (CAYC and CBZB with stop/start system)
15	-	Fuse 15 on fuse holder C -SC15-	10 A	-	Diagnosis connection -U31- (T16j/1)	15a
					Headlight range control regulator -E102-
					Air mass meter -G70- (CAYB, CAYC, CCZB and CDAA)
					Cornering light and headlight range control unit -J745-
					Gas mode control unit -J659- (CHGA)
					Intake manifold preheating heater element -N51- (BSF and CMXA)
					Heater element for crankcase breather -N79- (CFHC and CFJA)
					Left headlight range control motor -V48-
					Right headlight range control motor -V49-
					Heated windscreen -Z2-
					Left washer jet heater element -Z20-
					Right washer jet heater element -Z21-
16	-	Fuse 16 on fuse holder C -SC16-	10 A	-	Power output module for right headlight -J668-	15a
17	-	Fuse 17 on fuse holder C -SC17-	10 A	-	Roof display unit -J702- (with stop/start system)	30a
18	-	Fuse 18 on fuse holder C -SC18-	5 A	-	Control unit in dash panel insert -J285- (with stop/start system)	30a
19	-	Fuse 19 on fuse holder C -SC19-	15 A	-	Control unit with display for radio and navigation system -J503- (with stop/start system)	30a
					Radio -R- (with stop/start system)
20	-	Fuse 20 on fuse holder C -SC20-	10 A	-	Climatronic control unit -J255-	30a
					Heater control unit -J65-
					Air conditioning system control unit -J301-
					Selector lever sensors control unit -J587- (BSF, CAYC, CCZB, CDAA and CFHC)
21	-	Fuse 21 on fuse holder C -SC21-	-	-	vacant
22	-	Fuse 22 on fuse holder C -SC22-	5 A	-	Interior monitoring sensor -G273-	30a
					Alarm horn -H12-
					Dual tone horn relay -J4-
					Onboard supply control unit -J519- (via C/1), supply alarm
23	-	Fuse 23 on fuse holder C -SC23-	10 A	-	Diagnosis connection -U31- (T16j/16)	30a
					Light switch -E1-
					Rain and light detector sensor -G397-
					Heated rear window relay -J9-
24	-	Fuse 24 on fuse holder C -SC24-	-	-	vacant
25	-	Fuse 25 on fuse holder C -SC25-	-	-	vacant
26	-	Fuse 26 on fuse holder C -SC26-	20 A	-	Vacuum pump relay -J57- (BSF)	15a
27	-	Fuse 27 on fuse holder C -SC27-	10 A	-	Roof display unit -J702- (without stop/start system)	15a
28	-	Fuse 28 on fuse holder C -SC28-	20 A	-	Rear window wiper motor -V12-	75a
29	-	Fuse 29 on fuse holder C -SC29-	-	-	vacant
30	-	Fuse 30 on fuse holder C -SC30-	20 A	-	Cigarette lighter -U1-	75a
					12 V socket -U5- , on rear sockets
					12 V socket 2 -U18- , in luggage compartment
31	-	Fuse 31 on fuse holder C -SC31-	-	-	vacant
32	-	Fuse 32 on fuse holder C -SC32-	-	-	vacant
33	-	Fuse 33 on fuse holder C -SC33-	40 A	-	Heater/heat output switch -E16-	75a
					Air conditioning system control unit -J301-
34	-	Fuse 34 on fuse holder C -SC34-	-	-	vacant
35	-	Fuse 35 on fuse holder C -SC35-	-	-	vacant
36	-	Fuse 36 on fuse holder C -SC36-	-	-	vacant
37	-	Fuse 37 on fuse holder C -SC37-	-	-	vacant
38	-	Fuse 38 on fuse holder C -SC38-	-	-	vacant
39	-	Fuse 39 on fuse holder C -SC39-	15 A	-	Trailer detector control unit -J345-	30a
40	-	Fuse 40 on fuse holder C -SC40-	20 A	-	Trailer detector control unit -J345-	30a
41	-	Fuse 41 on fuse holder C -SC41-	20 A	-	Trailer detector control unit -J345-	30a
42	-	Fuse 42 on fuse holder C -SC42-	20 A	-	Onboard supply control unit -J519- (via B/42), supply ignition	30a
43	-	Fuse 43 on fuse holder C -SC43-	40 A	-	Trailer detector control unit -J345-	30a
44	-	Fuse 44 on fuse holder C -SC44-	25 A	-	Heated rear window relay -J9-	30a
45	-	Fuse 45 on fuse holder C -SC45-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
46	-	Fuse 46 on fuse holder C -SC46-	30 A	-	Rear left door control unit -J388-	30a
					Rear right door control unit -J389-
47	-	Fuse 47 on fuse holder C -SC47-	15 A	-	Fuel pump relay -J17- (BSF, CAYB, CAYC, CFHC, CFJA, CGGB, CHGA and CMXA)	30a
					Electric fuel pump 2 relay -J49- (CFHC and CFJA)
					Current supply relay for Simos control unit -J363- (BSF, CHGA and CMXA)
					Fuel pump control unit -J538- (CAXC, CBZB, CCZB and CDAA)
					Fuel supply relay -J643- (CGGB)
48	-	Fuse 48 on fuse holder C -SC48-	20 A	-	Onboard supply control unit -J519- (without Autolock function) (via B/1), supply central locking	30a
49	-	Fuse 49 on fuse holder C -SC49-	40 A	-	Fresh air blower -V2- (Climatronic only)	30a
50	-	Fuse 50 on fuse holder C -SC50-	30 A	-	Heated backrest control unit -J774-	30a
51	-	Fuse 51 on fuse holder C -SC51-	20 A	-	Sliding sunroof adjustment control unit -J245-	30a
52	-	Fuse 52 on fuse holder C -SC52-	20 A	-	Headlight washer system relay -J39-	30a
53	-	Fuse 53 on fuse holder C -SC53-	-	-	vacant
54	-	Fuse 54 on fuse holder C -SC54-	5 A	-	Taxi meter -G41-	30a
55	-	Fuse 55 on fuse holder C -SC55-	-	-	vacant
56	-	Fuse 56 on fuse holder C -SC56-	15 A	-	Two-way radio socket -U4-	30a
57	-	Fuse 57 on fuse holder C -SC57-	10 A	-	Telephone transmitter and receiver unit -R36- (with stop/start system)	30a
58	-	Fuse 58 on fuse holder C -SC58-	30 A	-	Driver door control unit -J386-	30a
					Front passenger door control unit -J387-
					Rear left door control unit -J388-
					Rear right door control unit -J389-
					Onboard supply control unit -J519- (with Autolock function) (via B/1), supply central locking

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SEAT ALTEA 2011 Overview of coupling stations

Overview of coupling stations

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q	for Altea XL and Freetrack only

Coupling point bumper rear right -T4d-, -T6n-

Location

q	for Altea only

Location

q	for Altea XL and Freetrack only

Coupling point on left C-pillar -T5b-, -T5g-

q	for Altea only

Location

q	for Altea XL and Freetrack only

SEAT ALTEA 2011 Coupling point left engine compartment T2c-, -T4t-, -T6j-, -T8n-, -T10a-, -T14a-, -T14b

Coupling point left engine compartment -T2c-, -T4t-, -T6j-, -T8n-, -T10a-, -T14a-, -T14b-

Pin connectors:

1 -	10-pin connector -T10a- , black / 14-pin connector -T14b- , black

2 -	6-pin connector -T6j- , black

3 -	8-pin connector -T8n- , black

4 -	2-pin connector -T2c- , brown / 4-pin connector -T4t- , black

5 -	14-pin connector -T14a- , black

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SEAT ALTEA 2011 Coupling point left engine compartment T2c-, -T4t-, -T6j-, -T8n-, -T10a-, -T14a-, -T14b

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SEAT ALTEA 2011 Coupling point on lower part of right A-pillar T20b

Coupling point on lower part of right A-pillar -T20b-

Pin connector:

1 -	20-pin connector -T20b- , black

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SEAT ALTEA 2011 Coupling point on lower part of right A-pillar T20b

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SEAT ALTEA 2011 Coupling point on lower part of right B-pillar T20f

Coupling point on lower part of right B-pillar -T20f-

Pin connector:

1 -	20-pin connector -T20f- , black

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SEAT ALTEA 2011 Coupling point on lower part of right B-pillar T20f

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SEAT ALTEA 2011 Coupling point on right C-pillar T5h

Coupling point on right C-pillar -T5h-

Note

for Altea XL and Freetrack only

Pin connector:

1 -	5-pin connector -T5h- , pink

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SEAT ALTEA 2011 Coupling point on right C-pillar T5h

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SEAT ALTEA 2011 Coupling point bumper rear right T4d-, -T6n

Coupling point bumper rear right -T4d-, -T6n-

Pin connectors:

1 -	4-pin connector -T4d- , black

2 -	6-pin connector -T6n- , black

Note

for Altea only

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SEAT ALTEA 2011 Coupling point bumper rear right T4d-, -T6n

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Coupling point bumper rear right -T4d-, -T6n-

Pin connectors:

1 -	4-pin connector -T4d- , black

2 -	6-pin connector -T6n- , black

Note

for Altea XL and Freetrack only

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SEAT ALTEA 2011

Coupling point on left C-pillar -T5b-, -T5c-

Pin connectors:

1 -	5-pin connector -T5b- , pink

2 -	5-pin connector -T5c- , brown

Note

for Altea only

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Coupling point on left C-pillar -T5b-, -T5g-

Pin connectors:

1 -	5-pin connector -T5g- , black

2 -	5-pin connector -T5b- , brown

Note

for Altea XL and Freetrack only

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SEAT ALTEA 2011 Coupling point on lower part of left B-pillar T20e

Coupling point on lower part of left B-pillar -T20e-

Pin connector:

1 -	20-pin connector -T20e- , black

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SEAT ALTEA 2011 Coupling point on lower part of left B-pillar T20e

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SEAT ALTEA 2011 Coupling point on lower part of left A-pillar T20a

Coupling point on lower part of left A-pillar -T20a-

Pin connector:

1 -	20-pin connector -T20a- , black

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SEAT ALTEA 2011 Coupling point on lower part of left A-pillar T20a

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SEAT ALTEA 2011 Overview of earth points

Overview of earth points

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13	Earth point, on right in engine compartment

Location

610	Earth point (audio), front under centre console

Location

43	Earth point, lower part of right A-pillar

Location

47	Earth point, in front right footwell

Location

78	Earth point, lower part of right B-pillar

Location

675	Earth point 2, on right in luggage compartment

q	For Altea XL and Freetrack only:

Location

51	Earth point, on right in luggage compartment

Location

612	Earth point, centre on rear lid

q	only models with rear window aerial:

Location

690	Earth point, rear centre roof frame

q	only models with rear window aerial:

Location

50	Earth point, on left in luggage compartment

Location

676	Earth point 2, on left in luggage compartment

Location

77	Earth point, lower part of left B-pillar

Location

602	Earth point, in front left footwell

Location

44	Earth point, lower part of left A-pillar

Location

605	Earth point, on top end of steering column

Location

607	Earth point, on left in plenum chamber

Location

1	Earth strap, battery - body

Location

672	Earth point 2, on front of left longitudinal member

Location

671	Earth point 1, on front of left longitudinal member

Location

673	Earth point 3, on front of left longitudinal member

Location

18	Earth point on engine block

q	only models with engine codes BVY, BVZ, BWA, BXW, CAXC, CCZB and CDAA:

Location

652	Earth point, engine and gearbox earth

Location

13	Earth point, in engine compartment, right -arrow-

Torque 9 Nm ±1 Nm

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610	Earth point (audio), under centre console, front -arrow-

Torque 9 Nm ±1 Nm

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43	Earth point, lower part of right A-pillar -arrow A-

Torque 9 Nm ±1 Nm

47	Earth point, in front right footwell -arrow B-

Torque 9 Nm ±1 Nm

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78	Earth point, lower part of right B-pillar -arrow-

Torque 9 Nm ±1 Nm

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675	Earth point 2, on right in luggage compartment -arrow A-

Torque 9 Nm ±1 Nm

Note:

For Altea XL and Freetrack only:

Back to overview

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51	Earth point, on right in luggage compartment -arrow-

Torque 9 Nm ±1 Nm

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612	Earth point, centre on rear lid -arrow-

Note:

only models with rear window aerial

Back to overview

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690	Earth point, rear centre roof frame -arrow-

Note:

only models with rear window aerial

Back to overview

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50	Earth point, on left in luggage compartment -arrow-

Torque 9 Nm ±1 Nm

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676	Earth point 2, on left in luggage compartment -arrow-

Torque 9 Nm ±1 Nm

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77	Earth point, lower part of left B-pillar -arrow-

Torque 9 Nm ±1 Nm

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44	Earth point, lower part of left A-pillar -arrow A-

Torque 9 Nm ±1 Nm

602	Earth point, in front left footwell -arrow B-

Torque 9 Nm ±1 Nm

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605	Earth point, on top end of steering column -arrow-

Torque 5 Nm AD18

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607	Earth point, on left in plenum chamber -arrow-

Torque 9 Nm ±1 Nm

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1	Earth strap, battery - body -arrow-

Torque 9 Nm ±1 Nm

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671	Earth point 1 at front of left longitudinal member -arrow A-

Torque 9 Nm ±1 Nm

673	Earth point 3 at front of left longitudinal member -arrow C-

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18	Earth point on engine block -arrow-

Note:

only models with engine codes BVY, BVZ, BWA, BXW, CAXC, CCZB and CDAA

Back to overview

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652	Earth point, engine and gearbox earth -arrow-

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SEAT ALTEA 2011 Overview of relay on relay carrier

Overview of relay on relay carrier

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2 -

q	Relay positions, from May 2009:

q	Relay positions, from June 2011:

3 -

q	Relay positions, from May 2009:

q	Position of relays, from November 2009:

q	Position of relays, from June 2010:

q	Relay positions, from June 2011:

q	Position of relays, from November 2011:

4 -

SEAT ALTEA 2011

Additional relay carrier, under electronics box low, on left of engine compartment, from March 2009

-	Automatic glow period control unit -J179- (Diesel engines)

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SEAT ALTEA 2011

Relay positions, on electronics box low, on left of engine compartment, from March 2009

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A1 -	Terminal 30 voltage supply relay -J317- (100)

q	Engines AZV, BKD, BLS, BMM, BMN, BXE, BXW and CEGA

-	Terminal 30 voltage supply relay -J317- (458)

q	Engines BSE, BSF and CCSA

-	Main relay -J271- (100)

q	Engines BVY, BVZ, BWA, CAXC and CDAA

A2 -	Secondary air pump relay -J299- (100)

q	Engines BSE and CCSA

-	Engine component current supply relay -J757- (100)

q	Engine CDAA

-	Additional coolant pump relay -J496- (100)

q	Engine CAXC

-	Push-in bridge -TV23-

q	diesel engines

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SEAT ALTEA 2011

Relay positions, on electronics box low, on left of engine compartment, from May 2009

Get access to all wiring diagrams of the car

A1 -	Terminal 30 voltage supply relay -J317- (100)

q	Engines AZV, BKD, BLS, BMM, BXE, BXF, BXW, CAYB, CAYC, CEGA, CFHC, CFJA and CGGB

-	Terminal 30 voltage supply relay -J317- (458)

q	Engines BSE, BSF, CCSA, CHGA and CMXA

-	Main relay -J271- (100)

q	Engines CAXC, CBZB, CCZB and CDAA

A2 -	Secondary air pump relay -J299- (100)

q	Engines BSE, CCSA, CHGA and CMXA

-	Engine component current supply relay -J757- (100)

q	Engines CCZB and CDAA

-	Additional coolant pump relay -J496- (100)

q	Engines CAXC and CBZB

-	Push-in bridge -TV23-

q	diesel engines

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SEAT ALTEA 2011

Relay positions, on electronics box low, on left of engine compartment, from June 2011

Get access to all wiring diagrams of the car

A1 -	Terminal 30 voltage supply relay -J317- (100)

q	Engines CAYB, CAYC, CFHC, CFJA and CGGB

-	Terminal 30 voltage supply relay -J317- (458)

q	Engines BSF, CHGA and CMXA

-	Main relay -J271- (100)

q	Engines CAXC, CBZB, CCZB and CDAA

A2 -	Secondary air pump relay -J299- (100)

q	Engines CHGA and CMXA

-	Engine component current supply relay -J757- (100)

q	Engines CCZB and CDAA

-	Additional coolant pump relay -J496- (100)

q	Engines CAXC and CBZB

-	Push-in bridge -TV23-

q	diesel engines

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SEAT ALTEA 2011

Position of relays on the relay carrier, left dash panel, from March 2009

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1 -	Terminal 50 voltage supply relay -J682- (373) 9-pin connector -T9a- black

2 -	Heated rear window relay -J9- (373) 9-pin connector -T9e- black

3 -	Terminal 15 voltage supply relay 2 -J681- (373) 9-pin connector -T9c- black

4 -	Fuel pump relay -J17- (404) 10-pin connector -T10e- black

q	Engines AZV, BKD, BLS, BMM, BMN, BSE, BSF, BXE, BXW, CCSA and CEGA

-	Electric fuel pump 2 relay -J49- (404) 10-pin connector -T10e- black

q	Engine CEGA

-	Continued coolant circulation relay -J151- (404) 10-pin connector -T10e- black

q	Engine CDAA

-	Circulation pump relay -J160- (404) 10-pin connector -T10e- black

q	Engine BWA

-	Current supply relay for Simos control unit -J363- (404) 10-pin connector -T10e- black

q	Engines BSE, BSF and CCSA

-	Fuel supply relay -J643- (404) 10-pin connector -T10e- black

q	Engine BXW

-	Motronic current supply relay -2- -J670- (404) 10-pin connector -T10e- black

q	Engine BWA

5 -	Low heat output relay -J359- (373) 9-pin connector -T9b- black

q	diesel engines

6 -	High heat output relay -J360- (370) 6-pin connector -T6r- black

q	diesel engines

7 -	Dual tone horn relay -J4- (449) 10-pin connector -T10s- black

-	Headlight washer system relay -J39- (449) 10-pin connector -T10s- black

8 -	Heated windscreen relay -J47- (404) 10-pin connector -T10p- black

9 -	X-contact relief relay -J59- (373) 9-pin connector -T9d- black

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SEAT ALTEA 2011

Position of relays on the relay carrier, left dash panel, from May 2009

Get access to all wiring diagrams of the car

1 -	Terminal 50 voltage supply relay -J682- (373) 9-pin connector -T9a- black

2 -	Heated rear window relay -J9- (373) 9-pin connector -T9e- black

3 -	Terminal 15 voltage supply relay 2 -J681- (373) 9-pin connector -T9c- black

4 -	Fuel pump relay -J17- (404) 10-pin connector -T10e- black

q	Engines AZV, BKD, BLS, BMM, BSE, BSF, BXE, BXF, BXW, CCSA, CEGA and CHGA

-	Electric fuel pump 2 relay -J49- (404) 10-pin connector -T10e- black

q	Engine CEGA

-	Continued coolant circulation relay -J151- (404) 10-pin connector -T10e- black

q	Engines CDAA and CCZB

-	Current supply relay for Simos control unit -J363- (404) 10-pin connector -T10e- black

q	Engines BSE, BSF, CCSA and CHGA

-	Fuel supply relay -J643- (404) 10-pin connector -T10e- black

q	Engine BXW

5 -	Low heat output relay -J359- (373) 9-pin connector -T9b- black

q	diesel engines

6 -	High heat output relay -J360- (370) 6-pin connector -T6r- black

q	diesel engines

7 -	Dual tone horn relay -J4- (449) 10-pin connector -T10s- black

-	Headlight washer system relay -J39- (449) 10-pin connector -T10s- black

8 -	Heated windscreen relay -J47- (404) 10-pin connector -T10p- black

9 -	X-contact relief relay -J59- (373) 9-pin connector -T9d- black

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SEAT ALTEA 2011

Position of relays on the relay carrier, left dash panel, from November 2009

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1 -	Terminal 50 voltage supply relay -J682- (643) 9-pin connector -T9a- black

2 -	Heated rear window relay -J9- (373) 9-pin connector -T9e- black

3 -	Terminal 15 voltage supply relay 2 -J681- (373) 9-pin connector -T9c- black

4 -	Fuel pump relay -J17- (404) 10-pin connector -T10e- black

q	Engines AZV, BKD, BLS, BMM, BSE, BSF, BXE, BXF, BXW, CAYB, CAYC, CCSA, CEGA, CFHC, CFJA, CGGB, CHGA and CMXA

-	Electric fuel pump 2 relay -J49- (404) 10-pin connector -T10e- black

q	Engines CEGA, CFHC and CFJA

-	Continued coolant circulation relay -J151- (404) 10-pin connector -T10e- black

q	Engines CDAA and CCZB

-	Intake manifold preheating relay -J81- (449) 10-pin connector -T10e- black

q	Engines CAYB and CAYC

-	Current supply relay for Simos control unit -J363- (404) 10-pin connector -T10e- black

q	Engines BSE, BSF, CCSA, CHGA and CMXA

-	Fuel supply relay -J643- (404) 10-pin connector -T10e- black

q	Engines BXW and CGGB

5 -	Low heat output relay -J359- (373) 9-pin connector -T9b- black

q	diesel engines

6 -	High heat output relay -J360- (370) 6-pin connector -T6r- black

q	diesel engines

7 -	Dual tone horn relay -J4- (449) 10-pin connector -T10s- black

-	Headlight washer system relay -J39- (449) 10-pin connector -T10s- black

8 -	Heated windscreen relay -J47- (404) 10-pin connector -T10p- black

9 -	X-contact relief relay -J59- (373) 9-pin connector -T9d- black

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SEAT ALTEA 2011

Position of relays on the relay carrier, left dash panel, from June 2010

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1 -	Terminal 50 voltage supply relay -J682- (643) 9-pin connector -T9a- black

2 -	Heated rear window relay -J9- (373) 9-pin connector -T9e- black or brown

3 -	Terminal 15 voltage supply relay 2 -J681- (373) 9-pin connector -T9c- black or grey

4 -	Fuel pump relay -J17- (404) 10-pin connector -T10e- black

q	Engines AZV, BKD, BLS, BMM, BSE, BSF, BXE, BXF, BXW, CAYB, CAYC, CCSA, CEGA, CFHC, CFJA, CGGB, CHGA and CMXA

-	Electric fuel pump 2 relay -J49- (404) 10-pin connector -T10e- black

q	Engines CEGA, CFHC and CFJA

-	Continued coolant circulation relay -J151- (404) 10-pin connector -T10e- black

q	Engines CDAA and CCZB

-	Intake manifold preheating relay -J81- (449) 10-pin connector -T10e- black

q	Engines CAYB and CAYC

-	Current supply relay for Simos control unit -J363- (404) 10-pin connector -T10e- black

q	Engines BSE, BSF, CCSA, CHGA and CMXA

-	Fuel supply relay -J643- (404) 10-pin connector -T10e- black

q	Engines BXW and CGGB

5 -	Low heat output relay -J359- (373) 9-pin connector -T9b- black or red

q	diesel engines

6 -	High heat output relay -J360- (370) 6-pin connector -T6r- black

q	diesel engines

7 -	Dual tone horn relay -J4- (449) 10-pin connector -T10s- black or brown

-	Headlight washer system relay -J39- (449) 10-pin connector -T10s- black or brown

8 -	Heated windscreen relay -J47- (404) 10-pin connector -T10p- black or red

9 -	X-contact relief relay -J59- (373) 9-pin connector -T9d- black or blue

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SEAT ALTEA 2011

Position of relays on the relay carrier, left dash panel, from June 2011

Get access to all wiring diagrams of the car

1 -	Terminal 50 voltage supply relay -J682- (643) 9-pin connector -T9a- black

2 -	Heated rear window relay -J9- (373) 9-pin connector -T9e- brown

3 -	Terminal 15 voltage supply relay 2 -J681- (373) 9-pin connector -T9c- grey

4 -	Fuel pump relay -J17- (404) 10-pin connector -T10e- black

q	Engines BSF, CAYB, CAYC, CFHC, CFJA, CGGB, CHGA and CMXA

-	Electric fuel pump 2 relay -J49- (404) 10-pin connector -T10e- black

q	Engines CFHC and CFJA

-	Continued coolant circulation relay -J151- (404) 10-pin connector -T10e- black

q	Engines CDAA and CCZB

-	Intake manifold preheating relay -J81- (449) 10-pin connector -T10e- black

q	Engines CAYB and CAYC

-	Current supply relay for Simos control unit -J363- (404) 10-pin connector -T10e- black

q	Engines BSF, CHGA and CMXA

-	Fuel supply relay -J643- (404) 10-pin connector -T10e- black

q	Engine CGGB

5 -	Low heat output relay -J359- (373) 9-pin connector -T9b- red

q	diesel engines

6 -	High heat output relay -J360- (370) 6-pin connector -T6r- black

q	diesel engines

7 -	Dual tone horn relay -J4- (449) 10-pin connector -T10s- brown

-	Headlight washer system relay -J39- (449) 10-pin connector -T10s- brown

8 -	Heated windscreen relay -J47- (404) 10-pin connector -T10p- red

9 -	X-contact relief relay -J59- (373) 9-pin connector -T9d- blue

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SEAT ALTEA 2011

Position of relays on the relay carrier, left dash panel, from November 2011

Get access to all wiring diagrams of the car

1 -	Terminal 50 voltage supply relay -J682- (643) 9-pin connector -T9a- black

2 -	Heated rear window relay -J9- (373) 9-pin connector -T9e- brown

3 -	Terminal 15 voltage supply relay 2 -J681- (373) 9-pin connector -T9c- grey

4 -	Fuel pump relay -J17- (404) 10-pin connector -T10e- black

q	Engines BSF, CFHC, CFJA, CGGB, CHGA and CMXA

-	Fuel pump relay -J17- (404) or (650) 10-pin connector -T10e- black

q	Engines CAYB and CAYC

-	Electric fuel pump 2 relay -J49- (404) 10-pin connector -T10e- black

q	Engines CFHC and CFJA

-	Continued coolant circulation relay -J151- (404) 10-pin connector -T10e- black

q	Engines CDAA and CCZB

-	Intake manifold preheating relay -J81- (449) 10-pin connector -T10e- black

q	Engines CAYB and CAYC

-	Current supply relay for Simos control unit -J363- (404) 10-pin connector -T10e- black

q	Engines BSF, CHGA and CMXA

-	Fuel supply relay -J643- (404) 10-pin connector -T10e- black

q	Engine CGGB

5 -	Low heat output relay -J359- (373) 9-pin connector -T9b- red

6 -	High heat output relay -J360- (370) 6-pin connector -T6r- black

7 -	Dual tone horn relay -J4- (449) 10-pin connector -T10s- brown

-	Headlight washer system relay -J39- (449) 10-pin connector -T10s- brown

8 -	Heated windscreen relay -J47- (404) 10-pin connector -T10p- red

9 -	X-contact relief relay -J59- (373) 9-pin connector -T9d- blue

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SEAT ALTEA 2011

Relay positions relay carrier, left dash panel, under onboard supply control unit, from November 2009

Get access to all wiring diagrams of the car

1 -	Starter motor relay 2 -J907- (433) 6-pin connector -T6ae- brown

q	Engines CAYB, CAYC and CBZB (only models with stop/start system)

2 -

vacant

3 -

vacant

4 -

vacant

5 -

vacant

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SEAT ALTEA 2011 Control units overview

Control units overview

Get access to all wiring diagrams of the car

q	26-pin connector assigment

q	47-pin connector assigment

q	80-pin connector assigment

q	121-pin connector assigment

q	154-pin connector assigment

q	Connector assigment

q	Connector assigment

q	from November 2010:

Location

q	Connector assigment

q	Connector assigment, up to April 2009 (only for left-handdrive vehicles)

q	Connector assigment, up to April 2009 (only for right-handdrive vehicles)

q	Connector assigment, from May 2009

SEAT ALTEA 2011

ABS control unit -J104-

Location:

in engine compartment, right -arrow-

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Get access to all wiring diagrams of the car

26-pin connector assigment:

Get access to all wiring diagrams of the car

A -	ABS control unit -J104-

Pin connector:

B -	26-pin connector -T26a-

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47-pin connector assigment:

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A -	ABS control unit -J104-

Pin connector:

B -	47-pin connector -T47a-

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SEAT ALTEA 2011

Engine control unit -J623-

Location:

In centre plenum chamber -arrow-

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Get access to all wiring diagrams of the car

Connector assigment:

Get access to all wiring diagrams of the car

A -	Engine control unit -J623-

q	Engines BXW and CGGB

Pin connectors:

B -	52-pin connector -T80a-

C -	28-pin connector -T80a-

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Connector assigment:

Get access to all wiring diagrams of the car

A -	Engine control unit -J623-

q	Engines BSE, BSF, CCSA, CHGA and CMXA

Pin connectors:

B -	81-pin connector -T121a-

C -	40-pin connector -T121a-

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Connector assigment:

Get access to all wiring diagrams of the car

A -	Engine control unit -J623-

q	Engines AZV, BKD, BLS, BMM, BMN, BVY, BVZ, BWA, BXE, BXF, CAXC, CAYC, CBZB, CCZB, CDAA, CEGA, CFHC and CFJA

Pin connectors:

B -	94-pin connector -T94a-

C -	60-pin connector -T60a-

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SEAT ALTEA 2011

Automatic gearbox control unit -J217-

Location:

Under front left wing -arrow-

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Connector assigment:

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A -	Automatic gearbox control unit -J217-

q	Engines BVY and BVZ

Pin connector:

B -	52-pin connector -T52d-

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SEAT ALTEA 2011

Gas mode control unit -J659-

Location:

In centre plenum chamber -arrow-

Note:

up to October 2010

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Get access to all wiring diagrams of the car

Connector assigment:

Get access to all wiring diagrams of the car

A -	Gas mode control unit -J659-

q	Motor CHGA

Pin connector:

B -	56-pin connector -T56a-

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Location:

under the longitudinal member on left in engine compartment -arrow-

Note:

from November 2010

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Get access to all wiring diagrams of the car

Connector assigment:

Get access to all wiring diagrams of the car

A -	Gas mode control unit -J659-

q	Motor CHGA

Pin connector:

B -	32-pin connector -T32d-

C -	48-pin connector -T48a-

D -

Vacant

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SEAT ALTEA 2011

Power steering control unit -J500-

Location:

On the steering on the assembly carrier, centre -arrow-

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Get access to all wiring diagrams of the car

Connector assigment:

Get access to all wiring diagrams of the car

A -	Power steering control unit -J500-

Pin connectors:

B -	5-pin connector -T5e-

q	T5e/1 = Drive train CAN, low

q	T5e/2 = Drive train CAN, high

q	T5e/3 = vacant

q	T5e/4 = Terminal 15 voltage supply

q	T5e/5 = vacant

C -	5-pin connector -T5f-

q	T5f/1 = vacant

q	T5f/2 = Steering angle sender shaft speed sender

q	T5f/3 = Steering angle sender shaft speed sender

q	T5f/4 = Steering angle sender shaft speed sender

q	T5f/5 = Steering angle sender shaft speed sender

D -	2-pin connector -T2a-

q	T2a/1 = Earth, terminal 31, power steering motor

q	T2a/2 = Terminal 30 voltage supply, power steering motor

Note:

up to April 2009 (only for left-handdrive vehicles)

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Connector assigment:

Get access to all wiring diagrams of the car

A -	Power steering control unit -J500-

Pin connectors:

B -	3-pin connector -T3t-

q	T3t/1 = Drive train CAN, low

q	T3t/2 = Drive train CAN, high

q	T3t/3 = Terminal 15 voltage supply

C -	5-pin connector -T5f-

q	T5f/1 = Steering angle sender shaft speed sender

q	T5f/2 = Steering angle sender shaft speed sender

q	T5f/3 = Steering angle sender shaft speed sender

q	T5f/4 = Steering angle sender shaft speed sender

q	T5f/5 = Steering angle sender shaft speed sender

D -	2-pin connector -T2a-

q	T2a/1 = Earth, terminal 31, power steering motor

q	T2a/2 = Terminal 30 voltage supply, power steering motor

Note:

up to April 2009 (only for right-handdrive vehicles)

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Connector assigment:

Get access to all wiring diagrams of the car

A -	Power steering control unit -J500-

Pin connectors:

B -	3-pin connector -T3t-

q	T3t/1 = Drive train CAN, low

q	T3t/2 = Drive train CAN, high

q	T3t/3 = Terminal 15 voltage supply

C -	5-pin connector -T5f-

q	T5f/1 = Steering angle sender shaft speed sender

q	T5f/2 = Steering angle sender shaft speed sender

q	T5f/3 = Steering angle sender shaft speed sender

q	T5f/4 = Steering angle sender shaft speed sender

q	T5f/5 = Steering angle sender shaft speed sender

D -	2-pin connector -T2a-

q	T2a/1 = Earth, terminal 31, power steering motor

q	T2a/2 = Terminal 30 voltage supply, power steering motor

Note:

from May 2009

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SEAT ALTEA 2011 – 1.6l diesel engine, CAYC,(0GZ) . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT ALTEA 2011 - Battery - Starter - Alternator

Wiring Diagram SEAT ALTEA 2011 - Ignition/starter switch - Cruise control system switch - Steering column electronics control unit

Wiring Diagram SEAT ALTEA 2011 - Terminal 30 voltage supply relay - Steering column electronics control unit - Fuse holder B

Wiring Diagram SEAT ALTEA 2011 - Fuel gauge sender - Fuel system pressurisation pump - Fuel pump relay - Intake manifold preheating relay - Fuse holder B

Wiring Diagram SEAT ALTEA 2011 - Fuse holder B

Wiring Diagram SEAT ALTEA 2011 - Automatic glow period control unit - Glow plug 1 - Glow plug 2 - Glow plug 3 - Glow plug 4 - Fuse holder B - Push-in bridge

Wiring Diagram SEAT ALTEA 2011 - Engine control unit

Wiring Diagram SEAT ALTEA 2011 - Charge pressure sender - Intake air temperature sender - Engine control unit - Intake manifold preheating heater element

Wiring Diagram SEAT ALTEA 2011 - Radiator outlet coolant temperature sender - Exhaust gas temperature sender 1 - Engine control unit

Wiring Diagram SEAT ALTEA 2011 - Engine control unit - Injector - cylinder 1 - Injector - cylinder 2 - Injector - cylinder 3 - Injector - cylinder 4

Wiring Diagram SEAT ALTEA 2011 - Air mass meter - Accelerator position sender - Engine control unit

Wiring Diagram SEAT ALTEA 2011 - Coolant temperature sender - Fuel temperature sender - Engine control unit - Fuel pressure regulating valve - Fuel metering valve - Coolant circulation pump 2

Wiring Diagram SEAT ALTEA 2011 - Engine speed sender - Fuel pressure sender - Engine control unit

Wiring Diagram SEAT ALTEA 2011 - Position sender for charge pressure positioner - Throttle valve module - Engine control unit - Exhaust gas recirculation valve

Wiring Diagram SEAT ALTEA 2011 - Hall sender - Engine control unit

Wiring Diagram SEAT ALTEA 2011 - Engine control unit - Charge pressure control solenoid valve - Exhaust gas recirculation cooler changeover valve

Wiring Diagram SEAT ALTEA 2011 - Brake pedal position sender - Clutch position sender - Engine control unit

Wiring Diagram SEAT ALTEA 2011 - Engine control unit

Wiring Diagram SEAT ALTEA 2011 - Terminal 15 voltage supply relay 2 - Terminal 50 voltage supply relay - Fuse holder C

Wiring Diagram SEAT ALTEA 2011 - Control unit in dash panel insert - Data bus diagnostic interface

Wiring Diagram SEAT ALTEA 2011 - Fuel gauge - Coolant temperature gauge - Rev. counter - Speedometer - Coolant shortage indicator sender - Control unit in dash panel insert - Alternator warning lamp - Exhaust emissions warning lamp

Wiring Diagram SEAT ALTEA 2011 - Oil pressure switch - Oil level and oil temperature sender - Buzzer and gong - Control unit in dash panel insert - Oil pressure warning lamp - Oil level warning lamp

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011 Cornering light and headlight range control unit J745

SEAT ALTEA 2011 Rear right door control unit J389

SEAT ALTEA 2011 Fuel pump control unit J538

SEAT ALTEA 2011 Rear left door control unit J388

SEAT ALTEA 2011 Sliding sunroof adjustment control unit J245

SEAT ALTEA 2011 Driver door control unit J386

SEAT ALTEA 2011 Steering column electronics control unit J527

SEAT ALTEA 2011 Onboard supply control unit J519

SEAT ALTEA 2011 Control unit in dash panel insert J285

SEAT ALTEA 2011 Data bus diagnostic interface J533

SEAT ALTEA 2011 Overview of fuses

SEAT ALTEA 2011 Fuses (SA) on electronics box low, in left engine compartment

SEAT ALTEA 2011 Fuses (SB) on electronics box low, on left of engine compartment

SEAT ALTEA 2011 Fuses (SC) in fuse holder under left dash panel

SEAT ALTEA 2011 Overview of coupling stations

SEAT ALTEA 2011 Coupling point left engine compartment T2c-, -T4t-, -T6j-, -T8n-, -T10a-, -T14a-, -T14b

SEAT ALTEA 2011 Coupling point on lower part of right A-pillar T20b

SEAT ALTEA 2011 Coupling point on lower part of right B-pillar T20f

SEAT ALTEA 2011 Coupling point on right C-pillar T5h

SEAT ALTEA 2011 Coupling point bumper rear right T4d-, -T6n

SEAT ALTEA 2011

SEAT ALTEA 2011 Coupling point on lower part of left B-pillar T20e

SEAT ALTEA 2011 Coupling point on lower part of left A-pillar T20a

SEAT ALTEA 2011 Overview of earth points

SEAT ALTEA 2011 Overview of relay on relay carrier

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011 Control units overview

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

SEAT ALTEA 2011

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