SEAT TOLEDO 2004 – 1.9 l/110 kW – Turbodiesel engine, engine code ARL . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT TOLEDO 2004 - Alternator - battery - starter - voltage regulator

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
D	Ignition/starter switch
J59	X-contact relief relay
S162	Fuse 1 (30) in fuse holder on battery
S163	Fuse 2 (30) in fuse holder on battery
S176	Fuse 4 (30) in fuse holder on battery
S177	Fuse 5 (30) in fuse holder on battery
S229	Fuse on fuse holder
T2k	2-pin connector, on engine
T4l	4-pin connector, on engine
T6l	6-pin connector, brown, in connector protective housing, on left in plenum chamber
500	Screw connection 1 (30), on relay plate
501	Screw connection 2 (30), on relay plate
A2	Positive connection (15), in dash panel wiring harness
A32	Positive connection (30), in dash panel wiring harness
*	only models with air conditioning system
**	only models with auxiliary heater

Wiring Diagram SEAT TOLEDO 2004 - Glow plugs; terminal 30 voltage supply relay - accelerator position sender - glow plug activation control unit

F8	Kick-down switch
F60	Idling speed switch
G79	Accelerator position sender
J248	Diesel direct injection system control unit
J370	Glow plug activation control unit
J317	Terminal 30 voltage supply relay
Q6	Engine glow plug
T4nd	4-pin connector, in engine compartment
T6l	6-pin connector, brown, in connector protective housing, on left in plenum chamber
T10	10-pin connector, orange, in connector protective housing, on left in plenum chamber
T10h	10-pin connector, blue, in connector protective housing, on left in plenum chamber
A104	Positive connection 2 (15), in dash panel wiring harness
*	Wire W for self-diagnosis

Wiring Diagram SEAT TOLEDO 2004 - Diesel direct injection system control unit - coolant temperature display sender - engine speed sender - intake manifold pressure sender

G2	Coolant temperature display sender
G28	Engine speed sender
G62	Coolant temperature sender
G71	Intake manifold pressure sender
G72	Intake manifold temperature sender
J248	Diesel direct injection system control unit
J293	Radiator fan control unit
T3d	3-pin connector, near intake manifold
T10d	10-pin connector, green, in connector protective housing, on left in plenum chamber
T14a	14-pin connector, in left wiring harness
200	Earth connection (screening), in engine compartment wiring harness

Wiring Diagram SEAT TOLEDO 2004 - Diesel direct injection system control unit - hall sender - fuel temperature sender - unit injector valve - No. 1 cyl. - unit injector valve - No. 2 cyl.

E35	Air conditioning system switch
G40	Hall sender
G81	Fuel temperature sender
J248	Diesel direct injection system control unit
J255	Climatronic control unit
J293	Radiator fan control unit
N240	Unit injector valve, No. 1 cyl.
N241	Unit injector valve, No. 2 cyl.
N242	Unit injector valve, No. 3 cyl.
N243	Unit injector valve, No. 4 cyl.
T8x	8-pin connector, near injection pump
T10	10-pin connector, orange, in connector protective housing, on left in plenum chamber
T10d	10-pin connector, green, in connector protective housing, on left in plenum chamber
*	only models with multifunction display

Wiring Diagram SEAT TOLEDO 2004 - Diesel direct injection system control unit - air mass meter - exhaust gas recirculation valve - harge pressure control solenoid valve

D	Ignition/starter switch
G70	Air mass meter
J104	ABS control unit with EDL
J248	Diesel direct injection system control unit
N18	Exhaust gas recirculation valve
N75	Charge pressure control solenoid valve
N239	Variable intake manifold flap change-over valve
S237	Fuse on fuse holder
T10d	10-pin connector, green, in connector protective housing, on left in plenum chamber
T10y	10-pin connector, on front of engine
T14a	14-pin connector, in left wiring harness
A80	Connection 1 (X), in dash panel wiring harness
D102	Connection 2, in engine compartment wiring harness
*	only models with auxiliary heater
**	only models without auxiliary heater

Wiring Diagram SEAT TOLEDO 2004 - Diesel direct injection system control unit - cruise control system switch - cruise control system (CCS) SET button - brake light switch - clutch pedal switch

E45	Cruise control system switch
E227	Cruise control system (CCS) SET button
F	Brake light switch
F36	Clutch pedal switch
F63	Brake pedal switch
J248	Diesel direct injection system control unit
S13	Fuse in relay plate fuse holder
T4nc	4-pin connector, on clutch pedal
T10d	10-pin connector, green, in connector protective housing, on left in plenum chamber
T10e	10-pin connector, black, in connector protective housing, on left in plenum chamber
T10s	10-pin connector, right next to steering column
A98	Positive connection 4 (30), in dash panel wiring harness
W1	Positive connection 1 (54), in rear wiring harness

Wiring Diagram SEAT TOLEDO 2004 - Diesel direct injection system control unit - low heat output relay - high heat output relay - intake manifold preheating heater element

J248	Diesel direct injection system control unit
J359	Low heat output relay
J360	High heat output relay
N51	Intake manifold preheating heater element
Q7	Coolant heating element
T6l	6-pin connector, brown, in connector protective housing, on left in plenum chamber
T10	10-pin connector, orange, in connector protective housing, on left in plenum chamber
T10y	10-pin connector, on front of engine
131	Earth connection 2, in engine compartment wiring harness
D50	Positive connection (30), in engine compartment wiring harness
D74	Connection (86), in engine compartment wiring harness
D98	Connection (glow plugs), in engine compartment wiring harness
D111	Connection 9, in engine compartment wiring harness
*	only models with auxiliary heater
**	for models with additional glow plug only

Wiring Diagram SEAT TOLEDO 2004 - Fuel pump - fuel pump relay - coolant shortage indicator sender - fuel gauge sender

G	Fuel gauge sender
G6	Fuel system pressurisation pump
G32	Coolant shortage indicator sender
G169	Fuel gauge sender 2
J17	Fuel pump relay
T6l	6-pin connector, brown, in connector protective housing, on left in plenum chamber
T9b	9-pin connector, on additional relay carrier
T10d	10-pin connector, green, in connector protective housing, on left in plenum chamber
T14a	14-pin connector, in left wiring harness
81	Earth connection 1, in dash panel wiring harness
269	Earth connection (sender earth) 1, in dash panel wiring harness
A71	Connection (86), in dash panel wiring harness
A100	Connection 2 (87), in dash panel wiring harness
B168	Connection (86), in interior wiring harness
B429	Connection (EFPR), in main wiring harness
*	only for 2V

Wiring Diagram SEAT TOLEDO 2004 - Control unit with display in dash panel insert - oil pressure switch - speedometer sender - oil level and oil temperature sender

F1	Oil pressure switch
F4	Reversing light switch
G22	Speedometer
G266	Oil level and oil temperature sender
J285	Control unit with display in dash panel insert
K3	Oil pressure warning lamp
K83	Exhaust emissions warning lamp
S7	Fuse in relay plate fuse holder
T10	10-pin connector, orange, in connector protective housing, on left in plenum chamber
T14a	14-pin connector, in left wiring harness
85	Earth connection 1, in engine compartment wiring harness
A20	Connection (15a), in dash panel wiring harness
B163	Positive connection 1 (15), in interior wiring harness
*	only models with extended servicing intervals

Wiring Diagram SEAT TOLEDO 2004 - Control unit in dash panel insert - fuel gauge - coolant temperature gauge - speedometer - oil pressure warning buzzer

G1	Fuel gauge
G3	Coolant temperature gauge
G21	Speedometer
H11	Oil pressure warning buzzer
J285	Control unit with display in dash panel insert
K2	Alternator warning lamp
K28	Coolant temperature and coolant shortage warning lamp
K105	Reserve fuel warning lamp
*	Wire W for self-diagnosis

Wiring Diagram SEAT TOLEDO 2004 - Control unit with display in dash panel insert - multifunction display - multifunction display call-up button - multifunction display memory switch

E86	Multifunction display call-up button
E109	Multifunction display memory switch
G5	Rev. counter
J119	Multifunction display
J255	Climatronic control unit
J285	Control unit with display in dash panel insert
K29	Glow period warning lamp
T6d	6-pin connector
T12d	12-pin connector, on Climatronic
A27	Connection (speed signal), in dash panel wiring harness
*	only models with multifunction display

SEAT TOLEDO 2004 Overview of relay

Overview of relay    

1 -

2 -	Relay on relay plate

q	Position of relays

2 -

Relay in left engine compartment:

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

-	High heat output relay -J360- (100) (only models with auxiliary heater)

B -	Terminal 30 voltage supply relay -J689- (428)

-	Current supply relay for Simos control unit -J363- (429) (for models with engine code BFQ only)

-	Low heat output relay -J359- (53) (only models with auxiliary heater)

C -

Vacant

 

SEAT TOLEDO 2004 Relay on relay plate

Relay on relay plate

1 -	Dual tone horn relay -J4- (53)

2 -	X-contact relief relay -J59- (100)

3 -

Vacant

4 -	Fuel pump relay -J17- (409)

-	Glow plug relay -J52- (103)

V y Vl -

Automatic intermittent wash and wipe relay -J31-

-	with rain sensor, with/without headlight washer system (192)

-	without rain sensor, with headlight washer system (389)

-	without rain sensor, without headlight washer system (377)

 

SEAT TOLEDO 2004 Relay on the 13 position additional relay carrier above the relay plate

Relay on the 13 position additional relay carrier above the relay plate

Left-handdrive vehicles:

1 -	Telephone relay

2....9 -

Vacant

10 -	Fuel pump relay (turbo diesel engine unit injectors) (167) -J17- (up to October 2002)

-	Fuel pump relay (TDI-PD) (53) (from November 2002)

11 -	Automatic gearbox relay AG4 -J60- (175)

12 -	Terminal 30 voltage supply relay -J317- (109)

13 -	Radiator fan relay (53)

 

Right-handdrive vehicles: 1....5 -  Vacant 6 -  Telephone switch-over relay 7 -  Radiator fan relay -J26- (53) 8 -  Terminal 30 voltage supply relay (109) 9 -  Automatic gearbox relay AG4 -J60- (175) 10 -  Fuel pump relay (turbo diesel engine unit injectors)-J17- (167) (up to October 2002)  -  Fuel pump relay (TDI-PD) (53) (from November 2002) 11 -  Vacant 12 -  Cigarette lighter relay Australia -J193- (53) 13 -  Vacant

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SEAT TOLEDO 2004 Glow plug activation control unit:

Glow plug activation control unit:

A -	Glow plug activation control unit -J370- (with engine code ARL only)

 

SEAT TOLEDO 2004 Overview of fuses

Overview of fuses    

1 -

q	Position of fuses

2 -

3 -	Fuse on fuse holder -S162-, -S163-, -S164-, -S176-, -S177-, -S178-, -S179-, -S180-, next to battery

q	Location, up to August 2000:

q	Location, from September 2000:

Fuse in fuse holder, dash panel

Fuse colours

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

The fuse electrical connections are shown in the respective current flow diagrams. The fuses for options not mentioned are also shown in the respective Current flow diagrams.

Fuses from S 24 are designated with an additional characteristic o. distinctive feature "2" in the Current Flow Diagram, for example: S 40 is designated as S 240.

 

SEAT TOLEDO 2004 Position of fuses in fuse holder, left dash panel

Position of fuses in fuse holder, left dash panel

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	-S1-	10A	-	Glove compartment light, heated washer jets
2	-	-S2-	10A	-	Turn signals
3	-	-S3-	5A	-	Side light warning lamp
4	-	-S4-	5A	-	Number plate light
5	-	-S5-	7.5A	-	Number plate light
6	-	-S6-	5A	-	Electric folding exterior mirror and window regulator (applicable up to October 2001) Convenience system central control unit (applicable from November 2001)
7	-	-S7-	10A	-	Reversing light
8	-	-S8-	5A	-	Telephone
9	-	-S9-	5A	-	ABS/ESP/HALDEX
10	-	-S10-	10A	-	Petrol engine control unit (applicable up to October 2001) Diesel engine control unit (applicable up to October 2001) - S-contact (applicable from November 2001)
11	-	-S11-	5A	-	Dash panel insert
12	-	-S12-	7.5A	-	Diagnosis voltage
13	-	-S13-	10A	-	Brake lights
14	-	-S14-	10A	-	Interior light
15	-	-S15-	5A	-	Dash panel insert, steering angle sender
16	-	-S16-	10A	-	Compressor

SEAT TOLEDO 2004 Position of fuses in fuse holder, left dash panel

Toledo/León	Fitting Locations	No.  802 / 5

Toledo/León Fitting Locations No.  802 / 6 Toledo/León Fitting Locations No.  802 / 7 Auxiliary fuse above additional relay carrier Right-handdrive vehicles A -  Seat adjustment fuse -S45- (30 A) B -  Vacuum pump fuse (20 A) C -  Window regulator fuse -S37- (30 A) D -  Fuel charging hole fuse -S323- (10 A) E -  Alarm horn fuse -S111- (15 A)  -  Turn signal fuse -S144- (15 A) F -  Taxi fuse (15 A) G -  Vacant H -  Vacant   https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Obtenga acceso a todos los diagramas de cableado del coche Left-handdrive vehicles: A -  Seat adjustment fuse -S45- (30 A) B -  Vacuum pump fuse (20 A) C -  Window regulator fuse -S37- (30 A) D -  Vacant E -  Taxi fuse (15 A) F -  Alarm horn fuse 1 -S111- (15 A)  -  Turn signal fuse -S144- (15 A) G -  Fuel charging hole fuse -S323- (10 A) H -  Vacant   https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Obtenga acceso a todos los diagramas de cableado del coche SEAT TOLEDO 2004 Fuse on fuse holder, next to battery (up to August 2000): Fuse on fuse holder, next to battery (up to August 2000): Fuses: S162 -  Glow plug heater 50 A S163 -  Engine control unit 50 A S164 -  Radiator fan 40 A S176 -  Passenger compartment, 110A S177 -  Alternator (90 A), 110 A  -  Alternator (120 A), 150 A S178 -  ABS (pump), 30 A S179 -  ABS, 30 A S180 -  Radiator fan 30 A

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SEAT TOLEDO 2004 Fuse on fuse holder, next to battery (from September 2000):

Fuse on fuse holder, next to battery (from September 2000):

A -	Red wire, 16mm²

   

Fuses: S162 -  Glow plug heater 50 A S163 -  Engine control unit 50 A S164 -  Radiator fan 40 A S176 -  Passenger compartment, 110A S177 -  Alternator (90 A), 110 A  -  Alternator (120 A), 150 A S178 -  ABS (pump), 30 A S179 -  ABS, 30 A S180 -  Radiator fan 30 A

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SEAT TOLEDO 2004 Overview of coupling station and connections for wiring harness

Overview of coupling station and connections for wiring harness    

1 -	Coupling station in protective housing, in plenum chamber

q	With connectors -T10g-, -T10d-, -T10e-, -T10-, -T6l-, -T10h-,

2 -	Coupling station, right B-pillar

q	With connector

3 -	Coupling station on left of C-pillar

q

Location

4 -	Coupling station on left of A-pillar

q	With connector

5 -	Coupling station in engine compartment, in left wiring harness

q

Location

Coupling station in protective housing, in plenum chamber

1 -	10-pin connector -T10g-, grey, automatic gearbox

2 -	10-pin connector, -T10d-, white, data bus wire, engine control unit, automatic gearbox, Motronic control unit, ABS control unit

3 -	10-pin connector -T10e-, black, cruise control system, Motronic control unit, engine control unit

4 -	10-pin connector -T10-, orange, reversing lights, engine control unit, starter, Climatronic control unit, Motronic control unit

5 -	6-pin connector -T6l-, brown, starter, fuel pump relay, engine control unit

Toledo/León	Fitting Locations	No.  803 / 3

6 -	10-pin connector -T10h-, blue, accelerator position sender, Motronic control unit, engine control unit

7 -	10-pin connector, -T10v-, green, radiator outlet coolant temperature sender, radiator fan control unit, potentiometer for temperature selection rotary knob

SEAT TOLEDO 2004 Coupling station, right B-pillar

Coupling station, right B-pillar

1 -	10-pin connector -T10m-, black, signal loudspeakers, central locking, rear electric window regulator, rear door warning lamp

The wiring on the B-pillar, left, is installed vice versa.

 

SEAT TOLEDO 2004 Coupling station on left of C-pillar Coupling station on left of C-pillar See connectors in fitting locations: Multi-pin connections. 1 -  Earth connection 2 -  Rear fog light, number plate light, reversing lights black 3 -  Rear window wiper and washer system (only for Leon) pink 4 -  Central locking brown

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SEAT TOLEDO 2004 Coupling station on left of A-pillar

Coupling station on left of A-pillar

1 -	10-pin connector -T10i-, black, central locking, electric mirror adjustment, radio with muting / electric windows

The wiring on the A-pillar, right, is installed vice versa.

 

SEAT TOLEDO 2004 Coupling station in engine compartment, in left wiring harness Coupling station in engine compartment, in left wiring harness See connectors in fitting locations: Multi-pin connections.

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SEAT TOLEDO 2004 Overview of earth points in engine compartment

Overview of earth points in engine compartment    

608	Earth point, in centre of plenum chamber ⇒ -arrow-

 

10 Earth point, in plenum chamber ⇒ -arrow-

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609	Earth point, on right in plenum chamber ⇒ -arrow-

 

1 Earth strap, battery - body ⇒ Arrow A

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12	Earth points, on left in engine compartment ⇒ -arrow B-

 

2 Earth strap, gearbox - body ⇒ -arrow-

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Overview of earth points in vehicle interior

Toledo/León	Fitting Locations	No.  801 / 6

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

 

78 Earth point on right B-pillar ⇒ -arrow-

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77	Earth point on left B-pillar ⇒ -arrow-

 

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

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33	Earth point behind dash panel on right ⇒ -arrow-

42	Same earth point as ⇒ -arrow-

 

32	Earth point behind dash panel on left ⇒ -arrow-

 

45 Earth point, behind dash panel

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SEAT TOLEDO 2004 Overview of earth points in luggage compartment (Toledo)

Overview of earth points in luggage compartment (Toledo)

50	Earth point, on left in luggage compartment

  Overview of earth points in luggage compartment (León)

57	Earth point, left rear pillar