SEAT LEON 2007 — Telephone system (Bluetooth)/telephone preparation (Bluetooth) . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT LEON 2007 - Aerial for Bluetooth - telephone transmitter and receiver unit

A	Battery
J503	Control unit with display for radio and navigation system
J519	Onboard supply control unit
R	Radio
R36	Telephone transmitter and receiver unit
R152	Aerial for Bluetooth
SB9	Fuse 9 on fuse holder
T12b	12-pin connector
T40	40-pin connector, under electronics box, in left engine compartment
T54	54-pin connector
372	Earth connection 7, in main wiring harness
507	Screw connection (30), on fuse holder on battery
610	Earth point (audio), front under centre console

Wiring Diagram SEAT LEON 2007 - Telephone transmitter and receiver unit - telephone microphone

J503	Control unit with display for radio and navigation system
J519	Onboard supply control unit
J533	Data bus diagnostic interface
R	Radio
R36	Telephone transmitter and receiver unit
R38	Telephone microphone
T2d	2-pin connector
T16c	16-pin connector, on radio, consists of two 8-pin connectors
T20	20-pin connector
T54	54-pin connector
A178	Connection (infotainment CAN bus, high), in dash panel wiring harness
A179	Connection (infotainment CAN bus, low), in dash panel wiring harness

Wiring Diagram SEAT LEON 2007 - Telephone bracket - telephone transmitter and receiver unit - radio - control unit with display for radio and navigation - radio aerial - telephone

J503	Control unit with display for radio and navigation system
J519	Onboard supply control unit
R	Radio
R36	Telephone transmitter and receiver unit
R51	Radio and telephone aerial
R126	Telephone bracket
T54	54-pin connector

Wiring Diagram SEAT LEON 2007 - Horn plate - multifunction buttons on left in steering wheel - operating unit in steering wheel

E221	Operating unit in steering wheel
E440	Multifunction buttons on left in steering wheel
F138	Airbag coil connector
H	Horn plate
J519	Onboard supply control unit
J527	Steering column electronics control unit
T5k	5-pin connector
T12f	12-pin connector
T20d	20-pin connector
43	Earth point, lower part of right A-pillar
332	Earth connection 4, in dash panel wiring harness
382	Earth connection 17, 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
*	only models with operating unit in steering wheel

Wiring Diagram SEAT LEON 2007 - Multifunction buttons on right in steering wheel - operating unit in steering wheel

E221	Operating unit in steering wheel
E441	Multifunction buttons on right in steering wheel
J519	Onboard supply control unit
*	only models with operating unit in steering wheel

SEAT LEON 2007

Connector:

SEAT LEON 2007 Control units overview

Control units overview    

1 -	Convenience system central control unit -J393-

q	Location → page 805/5

q	Connector assigment → page 805/6

q	Connector → page 805/6

2 -	Airbag control unit -J234-

q	from April 2005:

q	Location → page 805/7

q	50-pin connector assigment → page 805/8

q	50-pin connector → page 805/8

q	75-pin connector assigment → page 805/9

q	75-pin connector → page 805/9

q	from November 2007:

q	100-pin connector assigment → page 805/10

q	100-pin connector → page 805/10

León	Fitting Locations	No.  805 / 2

3 -	Front passenger side door control unit -J387-

q	Location → page 805/11

q	Connector assigment → page 805/12

q	Connector → page 805/12

4 -	Headlight range control, control unit -J431-

q	Location → page 805/13

q	Connector assigment → page 805/14

q	Connector → page 805/14

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

q	from May 2005:

q	Location → page 805/15

q	Connector assigment → page 805/16

q	Connector → page 805/16

6 -	Rear right door control unit -J389-

q	Location → page 805/17

q	Connector assigment → page 805/18

q	Connector → page 805/18

León	Fitting Locations	No.  805 / 3

7 -	Fuel pump control unit -J538-

q	Location → page 805/19

q	Connector assigment → page 805/20

q	Connector → page 805/20

8 -	Rear left door control unit -J388-

q	Location → page 805/21

q	Connector assigment → page 805/22

q	Connector → page 805/22

9 -	Sliding sunroof adjustment control unit -J245-

q	Location → page 805/23

q	Connector assigment → page 805/24

q	Connector → page 805/24

10 -	Driver door control unit -J386-

q	Location → page 805/25

q	Connector assigment → page 805/26

q	Connector → page 805/26

León	Fitting Locations	No.  805 / 4

11 -	Data bus diagnostic interface -J533-

q	Location → page 805/27

q	Connector assigment → page 805/28

q	Connector → page 805/28

12 -	Steering column electronics control unit -J527-

q	Location → page 805/29

q	Connector assigment → page 805/30

q	Connector → page 805/30

13 -	Onboard supply control unit -J519-

q	Location → page 805/31

q	Connector → page 805/32

q	Description of signal → page 805/33

14 -	Display control unit in dash panel insert -J285-

q	Location → page 805/39

q	Connector assigment → page 805/40

q	Connector → page 805/40

León	Fitting Locations	No.  805 / 5

Convenience system central control unit -J393-

Location: Below the dash panel on right, near centre console -arrow-

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León	Fitting Locations	No.  805 / 6

Connector assigment:

A -	Convenience system central control unit -J393-

Connector:

B -	is not installed

C -	18-pin connector -T18-, in wiring harness

D -	8-pin connector -T8-, in wiring harness

E -	6-pin connector -T6-, in wiring harness

F -	18-pin connector -T18a-, in wiring harness

León	Fitting Locations	No.  805 / 7

Airbag control unit -J234-

Location: Under centre console -arrow-

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León	Fitting Locations	No.  805 / 8

50-pin connector assigment:

A -	Airbag control unit -J234-

50-pin connector:

B -	50-pin connector -T50-, in wiring harness

León	Fitting Locations	No.  805 / 9

75-pin connector assigment:

A -	Airbag control unit -J234-

75-pin connector:

B -	75-pin connector -T75-, in wiring harness

León	Fitting Locations	No.  805 / 10

100-pin connector assigment:

A -	Airbag control unit -J234-

100-pin connector:

B -	100-pin connector, -T100-, in wiring harness

León	Fitting Locations	No.  805 / 11

Front passenger side door control unit -J387-

Location: In front passenger door -arrow-

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León	Fitting Locations	No.  805 / 12

Connector assigment:

A -	Front passenger side door control unit -J387-

Connector:

B -	20-pin connector -T20h-, in wiring harness

C -	16-pin connector -T16a-, in wiring harness

D -	32-pin connector -T32a-, in wiring harness

León	Fitting Locations	No.  805 / 13

Headlight range control, control unit -J431-

Location: In dash panel, right -arrow-

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León	Fitting Locations	No.  805 / 14

Connector assigment:

A -	Headlight range control, control unit -J431-

Connector:

B -	26-pin connector -T26-, in wiring harness

León	Fitting Locations	No.  805 / 15

Cornering light and headlight range control unit -J745-

Location: In dash panel, right -arrow-

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León	Fitting Locations	No.  805 / 16

Connector assigment:

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

Connector:

B -	26-pin connector -T26-, in wiring harness

León	Fitting Locations	No.  805 / 17

Rear right door control unit -J389-

Location: In rear right door -arrow-

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León	Fitting Locations	No.  805 / 18

Connector assigment:

A -	Rear right door control unit -J389-

Connector:

B -	18-pin connector -T18c-, in wiring harness

León	Fitting Locations	No.  805 / 19

Fuel pump control unit -J538-

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

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León	Fitting Locations	No.  805 / 20

Connector assigment:

A -	Fuel pump control unit -J538-

q	Engines BLR, BVY, BVZ, BWA, BWA1 BWJ, BZB and CAXC

Connector:

B -	10-pin connector -T10l-, in wiring harness

León	Fitting Locations	No.  805 / 21

Rear left door control unit -J388-

Location: In rear left door -arrow-

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León	Fitting Locations	No.  805 / 22

Connector assigment:

A -	Rear left door control unit -J388-

Connector:

B -	18-pin connector -T18b-, in wiring harness

León	Fitting Locations	No.  805 / 23

Sliding sunroof adjustment control unit -J245-

Location: Behind front interior light -arrow-

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León	Fitting Locations	No.  805 / 24

Connector assigment:

A -	Sliding sunroof adjustment control unit -J245-

Connector:

B -	6-pin connector -T6c-, in wiring harness

C -	6-pin connector -T6d-, on control unit extension

León	Fitting Locations	No.  805 / 25

Driver door control unit -J386-

Location: In driver door -arrow-

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León	Fitting Locations	No.  805 / 26

Connector assigment:

A -	Driver door control unit -J386-

Connector:

B -	20-pin connector -T20g-, in wiring harness

C -	16-pin connector -T16b-, in wiring harness

D -	32-pin connector -T32-, in wiring harness

León	Fitting Locations	No.  805 / 27

Data bus diagnostic interface -J533-

Location: Below the dash panel on left, near centre console -arrow-

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León	Fitting Locations	No.  805 / 28

Connector assigment:

A -	Data bus diagnostic interface -J533-

Connector:

B -	20-pin connector -T20-, in wiring harness

León	Fitting Locations	No.  805 / 29

Steering column electronics control unit -J527-

Location: On steering column -arrow-

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León	Fitting Locations	No.  805 / 30

Connector assigment:

A -	Steering column electronics control unit -J527-

Connector:

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 (from May 2008, for left-handdrive vehicles only)

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

H -	4-pin connector -T4f-, in wiring harness

J -	20-pin connector -T20d-, in wiring harness

León	Fitting Locations	No.  805 / 31

Onboard supply control unit -J519-

Location: On left under dash panel, under relay carrier -arrow-.

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León	Fitting Locations	No.  805 / 32

Pin connector:

A -	11-pin connector

B -	12-pin connector

C -	12-pin connector

D -	11-pin connector

E -	16-pin connector

F -	8-pin connector

G -	12-pin connector

H -

Vacant

I -	2-pin connector

J -	6-pin connector

K -	10-pin connector

L -	2-pin connector

León	Fitting Locations	No.  805 / 33

Description of signal onboard power supply control unit -J519-

Connector	Pin	Terminal	Equipment H	Equipment M
A	1	Supply (30), right lights	x	x
A	2	Right dipped beam signal output	x	x
A	3	Right main beam signal output	x	x
A	4	Right fog light signal output	x	-
A	5	Signal output for the activation of the gas discharge headlights on the right	x	-
A	6	Signal output for front right turn signal	x	x
A	7	Front left side light signal output	x	x
A	8	Signal output for left side repeater turn signal	x	x
A	9	Signal earth (31), left lights	x	x
A	10	Fuel pump relay signal output	x	x
A	11	Voltage supply relay (50) signal output	x	x
B	1	Right reversing light signal output	x	x
B	2		-	-
B	3		-	-
B	4	Rear left fog light signal output	x	x
B	5	Right brake and tail light signal output	x	x
B	6		-	-
B	7	Footwell light signal output	x	x
B	8		-	-

León	Fitting Locations	No.  805 / 34

Connector	Pin	Terminal	Equipment H	Equipment M
B	9	Right tail light signal output	x	x
B	10	Signal output for rear right turn signal	x	x
B	11	Interior lighting, door contact switch signal output	x	x
B	12	Illumination - switches and instruments (58d) signal output	x	x
C	1	Signal output for switching heated seat off	x	x
C	2	Left brake and tail light signal output	x	x
C	3	Rear right fog light signal output	x	x
C	4		-	-
C	5	Left seat backrest switch signal output	x	x
C	6	Right seat backrest switch signal output	x	x
C	7		-	-
C	8	Number plate light signal output	x	x
C	9	High level brake light signal output	x	x
C	10	Left tail light signal output	x	x
C	11	Left tail light signal output	x	x
C	12	Left reversing light signal output	x	x
D	1	Supply (30), left lights	x	x
D	2	Left fog light signal output	x	-
D	3	Left main beam signal output	x	x
D	4	Left dipped beam signal output	x	x

León	Fitting Locations	No.  805 / 35

Connector	Pin	Terminal	Equipment H	Equipment M
D	5	Signal earth (31), right lights	x	x
D	6	Signal output for the activation of the gas discharge headlights on the left	x	-
D	7	Supply (15) output signal, engine relay	x	x
D	8	Headlight washer system relay signal output	x	x
D	9	Signal output for right side repeater turn signal	x	x
D	10	Front right side light signal output	x	x
D	11	Signal output for front left turn signal	x	x
E	1	Side light switch signal input	x	x
E	2	Brake light switch signal input	x	x
E	3	Come-Home potentiometer earth	x	x
E	4	Come-Home potentiometer supply	x	x
E	5		-	-
E	6	Fog light switch signal input	x	-
E	7	Selector lever lock P/N signal input	x	x
E	8	Dipped beam switch input signal	x	x
E	9		-	-
E	10		-	-
E	11		-	-

León	Fitting Locations	No.  805 / 36

Connector	Pin	Terminal	Equipment H	Equipment M
E	12	Come-Home potentiometer input signal	x	x
E	13	Rear fog light switch signal input	x	x
E	14	Automatic driving lights switch signal input	x	x
E	15		-	-
E	16	Light switch position "0" signal input	x	x
F	1	Signal input (50), diagnosis	x	x
F	2	Signal input (15), diagnosis engine	x	x
F	3	LIN-Bus	x	x
F	4	Signal (L) alternator	x	x
F	5	Bonnet switch input signal	x	x
F	6	Reversing light switch signal input	x	x
F	7	Input signal for reference voltage (30)	x	x
F	8	Input signal for earth - reference voltage (31)	x	x
G	1	Voltage supply (50) for ignition/starter switch signal input	x	x
G	2	Hazard warning light system warning lamp signal input	x	x
G	3	Heated rear window warning lamp signal input	x	x
G	4	Signal earth for illumination regulators - switches and instruments (31)	x	x
G	5		-	-
G	6	Heated rear window button input signal	x	x

León	Fitting Locations	No.  805 / 37

Connector	Pin	Terminal	Equipment H	Equipment M
G	7	Convenience CAN-L	x	x
G	8	Convenience CAN-H	x	x
G	9	Hazard warning light switch signal input	x	x
G	10	Supply for switches and instruments illumination regulator	x	x
G	11	Voltage supply (15) for ignition/starter switch signal input	x	x
G	12	Switches and instruments illumination regulator signal input	x	x
H	1		-	-
H	2		-	-
H	3		-	-
H	4		-	-
H	5		-	-
H	6		-	-
H	7		-	-
H	8		-	-
H	9		-	-
H	10		-	-
H	11		-	-
H	12		-	-

León	Fitting Locations	No.  805 / 38

Connector	Pin	Terminal	Equipment H	Equipment M
I	1	Supply (75a) input	x	x
I	2	Supply (75x) output	x	x
J	1	Washer pump supply input	x	x
J	2	Washer pump motor and rear window wiper motor signal output	x	x
J	3	signal horn	x	x
J	4	Washer pump motor and rear window wiper motor signal output	x	x
J	5	Washer pump earth (31)	x	x
J	6	Horn signal output	x	x
K	1	Heated rear window signal output	x	x
K	2		-	-
K	3		-	-
K	4		-	-
K	5	Supply input (30G)	x	x
K	6	Heated rear window supply input	x	x
K	7		-	-
K	8		-	-
K	9		-	-
K	10	Supply output (30G)	x	x
L	1	Interior supply input (15)	x	x
L	2	Interior supply output (15)	x	x

León	Fitting Locations	No.  805 / 39

SEAT LEON 2007 Display control unit in dash panel insert -J285- Display control unit in dash panel insert -J285-

Location: In dash panel -arrow-

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León	Fitting Locations	No.  805 / 40

Connector assigment:

A -	Display control unit in dash panel insert -J285-

Connector:

B -	36-pin connector -T36-, in wiring harness

SEAT LEON 2007 Overview of fuses

Overview of fuses    

1 -	Fuses (SA), in electronics box A

q	from April 2005:

q	Location → page 802/3

q	from April 2005:

q	Position of fuses → page 802/4

q	from November 2005:

q	Position of fuses → page 802/5

q	from May 2006:

q	Position of fuses → page 802/6

q	from November 2006:

q	Position of fuses → page 802/7

q	from November 2008:

q	Location → page 802/8

q	Position of fuses → page 802/9

2 -	Fuses (SB), in electronics box B

q	Location → page 802/10

q	from April 2005:

q	Position of fuses → page 802/11

q	from November 2005:

q	Position of fuses → page 802/15

q	from May 2006:

q	Position of fuses → page 802/19

q	from November 2006:

q	Position of fuses → page 802/24

q	from May 2007:

q	Position of fuses → page 802/29

q	from May 2008:

q	Position of fuses → page 802/35

León	Fitting Locations	No.  802 / 2

3 -	Fuses (SC) on fuse holder C

q	Location → page 802/41

q	from April 2005:

q	Position of fuses → page 802/42

q	from November 2005:

q	Position of fuses → page 802/47

q	from May 2006:

q	Position of fuses → page 802/52

q	from November 2006:

q	Position of fuses → page 802/58

q	from May 2007:

q	Position of fuses → page 802/65

q	from November 2007:

q	Position of fuses → page 802/72

q	from May 2008:

q	Position of fuses → page 802/79

León	Fitting Locations	No.  802 / 3

Fuses (SA) on electronics box, on left of engine compartment, from April 2005

León	Fitting Locations	No.  802 / 4

SEAT LEON 2007 Fuse locations in electronics box, from April 2005

Fuse locations in electronics box, from April 2005

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SA1 - Fuse 1 on fuse holder battery	150A	-	C - Alternator 90A / 110A	30a
			200A	-	C - Alternator 140A
2	-	SA2 - Fuse 2 on fuse holder battery	80A	-	V187 - Electromechanical power steering motor	30a
3	-	SA3 - Fuse 3 on fuse holder battery	80A		V7- Radiator fan (power less than 500 W)	30a
3	-	SA3 - Fuse 3 on fuse holder battery	50A		V7- Radiator fan (power more than 500 W)	30a
4	-	SA4 - Fuse 4 on fuse holder battery	-	-	- Vacant
5	-	SA5 - Fuse 5 on fuse holder battery	100A	-	Z35 - Auxiliary heater element	30a
6	-	SA6 - Fuse 6 on fuse holder battery	80A	-	- Fuse on fuse holder, left dash panel (SC 12 - SC 17, SC 20, SC22 - SC27, SC43, SC44, SC45)	30a
7	-	SA7 -Fuse 7 on fuse holder battery	-	-	- Vacant
A	-	507 - Screw connection (30), on fuse holder on battery	-	-	A- Battery (+)	30

León	Fitting Locations	No.  802 / 5

SEAT LEON 2007 Fuse locations in electronics box, from November 2005

Fuse locations in electronics box, from November 2005

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SA1 - Fuse 1 on fuse holder battery	150A	-	C - Alternator 90A / 110A	30a
			200A	-	C - Alternator 140A
2	-	SA2 - Fuse 2 on fuse holder battery	80A	-	V187 - Electromechanical power steering motor	30a
3	-	SA3 - Fuse 3 on fuse holder battery	80A	-	V7- Radiator fan (power less than 500 W)	30a
			50A	-	V7- Radiator fan (power more than 500 W)
4	-	SA4 - Fuse 4 on fuse holder battery	-	-	- Vacant
5	-	SA5 - Fuse 5 on fuse holder battery	100A	-	Z35 - Auxiliary heater element	30a
6	-	SA6 - Fuse 6 on fuse holder battery	80A	-	- Fuse on fuse holder, left dash panel (SC 12 - SC 17, SC 20, SC22 - SC27, SC43, SC44, SC45)	30a
7	-	SA7 -Fuse 7 on fuse holder battery	-	-	- Vacant
A	-	507 - Screw connection (30), on fuse holder on battery	-	-	A- Battery (+)	30

León	Fitting Locations	No.  802 / 6

SEAT LEON 2007 Fuse locations in electronics box, from May 2006

Fuse locations in electronics box, from May 2006

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SA1 - Fuse 1 on fuse holder battery	150A	-	C - Alternator 90A / 110A	30a
			200A	-	C - Alternator 140A
2	-	SA2 - Fuse 2 on fuse holder battery	80A	-	V187 - Electromechanical power steering motor	30a
3	-	SA3 - Fuse 3 on fuse holder battery	50A	-	V7 - Radiator fan	30a
4	-		-	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
5	-	SA5 - Fuse 5 on fuse holder battery	100A	-	- Fuse on fuse holder, left dash panel (SC 12 - SC 17, SC 20, SC22 - SC27, SC43, SC44, SC45)	30a
6	-	SA6 - Fuse 6 on fuse holder battery	100A	-	Z35 - Auxiliary heater element	30a
7	-	SA7 -Fuse 7 on fuse holder battery	-	-	- Vacant
A	-	507 - Screw connection (30), on fuse holder on battery	-	-	A- Battery (+)	30

León	Fitting Locations	No.  802 / 7

SEAT LEON 2007 Fuse locations in electronics box, from November 2006

Fuse locations in electronics box, from November 2006

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SA1 - Fuse 1 on fuse holder battery	150A	-	C - Alternator 90A / 110A	30a
			200A	-	C - Alternator 140A
2	-	SA2 - Fuse 2 on fuse holder battery	80A	-	V187 - Electromechanical power steering motor	30a
3	-	SA3 - Fuse 3 on fuse holder battery	50A	-	V7 - Radiator fan	30a
4	-		-	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
5	-	SA5 - Fuse 5 on fuse holder battery	100A	-	- Fuse on fuse holder, left dash panel (SC 12 - SC 17, SC 20, SC22 - SC27, SC43, SC44, SC45)	30a
6	-	SA6 - Fuse 6 on fuse holder battery	80A	-	J360 - High heat output relay	30a
7	-	SA7 -Fuse 7 on fuse holder battery	40A	-	J359 - Low heat output relay	30a
A	-	507 - Screw connection (30), on fuse holder on battery	-	-	A- Battery (+)	30

León	Fitting Locations	No.  802 / 8

SEAT LEON 2007 Fuses (SA) on electronics box, on left of engine compartment, from November 2008

Fuses (SA) on electronics box, on left of engine compartment, from November 2008

León	Fitting Locations	No.  802 / 9

SEAT LEON 2007 Fuse locations in electronics box, from November 2008

Fuse locations in electronics box, from November 2008

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SA1 - Fuse 1 on fuse holder battery	150A	-	C - Alternator 90A / 110A	30a
			200A	-	C - Alternator 140A
2	-	SA2 - Fuse 2 on fuse holder battery	80A	-	V187 - Electromechanical power steering motor	30a
3	-	SA3 - Fuse 3 on fuse holder battery	50A	-	V7 - Radiator fan	30a
4	-	SA4 - Fuse 4 on fuse holder battery	80A	-	J360 - High heat output relay	30a
5	-	SA5 - Fuse 5 on fuse holder battery	80A	-	- Fuse on fuse holder, left dash panel (SC12 - SC17, SC22 - SC27, SC43, SC44, SC45)	30a
6	-	SA6 - Fuse 6 on fuse holder battery	40A	-	J359 - Low heat output relay	30a
7	-		-	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
A	-	507 - Screw connection (30), on fuse holder on battery	-	-	A- Battery (+)	30

León	Fitting Locations	No.  802 / 10

SEAT LEON 2007 Fuses (SB) on electronics box, on left of engine compartment

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

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

León	Fitting Locations	No.  802 / 11

SEAT LEON 2007 Position of fuses, from April 2005

Position of fuses, from April 2005

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	-	SB1 - Fuse 1 on fuse holder	25A	-	J584- Front passenger side wiper motor control unit	30
F2	-	SB2 - Fuse 2 on fuse holder	5A	-	J527 - Steering column electronics control unit	30
F3	-	SB3 - Fuse 3 on fuse holder	5A	-	J519 - Onboard power supply control unit	30
F4	-	SB4 - Fuse 4 on fuse holder	30A	-	J104 - ABS control unit with EDL	30
F5	-	SB5 - Fuse 5 on fuse holder	15A	-	J743 - Mechatronics for dual clutch gearbox (AZV, BKD and BWA1)	30
F6	-	SB6 - Fuse 6 on fuse holder	5A	-	J285-Control unit with display in dash panel insert	30
F7	-	Vacant	-	-
F8	-	SB8 - Fuse 8 on fuse holder	15A	-	J503 - Control unit with display for radio and navigation system R - Radio	30
F9	-	SB9 - Fuse 9 on fuse holder	5A	-	J412 - Mobile telephone operating electronics control unit R36 - Telephone transmitter and receiver unit	30
F10	-	SB10 - Fuse 10 on fuse holder	5A	-	J317- Terminal 30 voltage supply relay (AZV, BKC and BKD)	30
			15A	-	J220 - Motronic control unit (BLR) J271 - Motronic current supply relay (BLR and BWA1)
F11	-	Vacant	-	-
F12	-	SB12 - Fuse 12 on fuse holder	5A	-	J533 - Data bus diagnostic interface	30

León	Fitting Locations	No.  802 / 12

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F13	-	SB13 - Fuse 13 on fuse holder	25A	-	J220 - Motronic control unit (BLR and BWA1) J361 - Simos control unit (BSE)	87
			30A	-	J248- Diesel direct injection system control unit (AZV, BKC and BKD)
F14	-	SB14 - Fuse 14 on fuse holder	20A	-	N70 - Ignition coil 1 with output stage (BLR and BWA1) N127 - Ignition coil 2 with output stage (BLR and BWA1) N152 - Ignition transformer (BSE) N291 - Ignition coil 3 with output stage (BLR and BWA1) N292 - Ignition coil 4 with output stage (BLR and BWA1)	87
F15	-	SB15 - Fuse 15 on fuse holder	5A	-	J17 - Fuel pump relay (AZV, BKC and BKD) J160 - Circulation pump relay (BWA1) J179- Automatic glow period control unit (AZV, BKC and BKD)	87
			10A	-	Z29 - Lambda probe 1 heater, downstream of catalytic converter (BLR) Z30 - Lambda probe 2 heater, downstream of catalytic converter (BLR) Z64 - Lambda probe 3 heater after catalytic converter (BLR)
F16	-	SB16 - Fuse 16 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F17	-	SB17 - Fuse 17 on fuse holder	15A	-	J519 - Onboard power supply control unit	30
F18	-	Vacant	-	-

León	Fitting Locations	No.  802 / 13

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F19	-	SB19 - Fuse 19 on fuse holder	30A	-	J400- Driver side wiper motor control unit	30
F20	-	Vacant	-	-
F21	-	SB21 - Fuse 21 on fuse holder	15A	-	Z19 - Lambda probe heater (BLR) Z28 - Lambda probe 2 heater (BLR) G39 - Lambda probe (BSE) G130 - Lambda probe after catalytic converter (BSE)	87
F22	-	SB22 - Fuse 22 on fuse holder	5A	-	G476 - Clutch position sender (only models with manual gearbox) F47-Cruise control system brake pedal switch/diesel direct injection system	87
F23	-	SB23 - Fuse 23 on fuse holder	5A	-	J299- Secondary air pump relay (BSE)	87
			10A	-	N18 - Exhaust gas recirculation valve (AZV, BKC and BKD) N75 - Charge pressure control solenoid valve (AZV, BKC and BKD) N345 - Exhaust gas recirculation cooler change-over valve (AZV, BKC and BKD)
			15A	-	J160 - Circulation pump relay (BWA1) J670 - Motronic current supply relay 2 (BWA1) N276- Fuel pressure regulating valve (BLR)

León	Fitting Locations	No.  802 / 14

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F24	-	SB24 - Fuse 24 on fuse holder	10A	-	F265 - Map-controlled engine cooling system thermostat (BLR) N18 - Exhaust gas recirculation valve (BSE) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BLR and BSE) N156 - Variable intake manifold change-over valve (BLR and BSE) N205 - Inlet camshaft control valve 1 (BLR and BWA1) V7 - Radiator fan V157 - Intake manifold flap motor (AZV, BKC and BKD)	87
F25	-	SB25 - Fuse 25 on fuse holder	40A	-	J519 - Onboard power supply control unit	30
F26	-	SB26 - Fuse 26 on fuse holder	40A	-	J519 - Onboard power supply control unit	30
F27	-	SB27 - Fuse 27 on fuse holder	40A	-	V101- Secondary air pump motor (BSE)	87
			50A	-	J179- Automatic glow period control unit (AZV, BKC and BKD)	30
F28	-	SB28 - Fuse 28 on fuse holder	40A	-	J681 - Terminal 15 voltage supply relay 2	30
F29	-	SB29 - Fuse 29 on fuse holder	30A	-	G273 - Interior monitoring sensor H12 - Alarm horn J39 - Headlight washer system relay J245 - Sliding sunroof adjustment control unit J393 - Convenience system central control unit	30
			50A	-	G273 - Interior monitoring sensor H12 - Alarm horn J39 - Headlight washer system relay J245 - Sliding sunroof adjustment control unit J388 - Rear left door control unit J389 - Rear right door control unit J393 - Convenience system central control unit
F30	-	SB30 - Fuse 30 on fuse holder	40A	-	J59 - X-contact relief relay	30

León	Fitting Locations	No.  802 / 15

SEAT LEON 2007 Position of fuses, from November 2005

Position of fuses, from November 2005

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	-	SB1 - Fuse 1 on fuse holder	25A	-	J584- Front passenger side wiper motor control unit	30
F2	-	SB2 - Fuse 2 on fuse holder	5A	-	J527 - Steering column electronics control unit	30
F3	-	SB3 - Fuse 3 on fuse holder	5A	-	J519 - Onboard power supply control unit	30
F4	-	SB4 - Fuse 4 on fuse holder	30A	-	J104 - ABS control unit with EDL	30
F5	-	SB5 - Fuse 5 on fuse holder	15A	-	J743 - Mechatronics for dual clutch gearbox (AZV, BKD, BMM and BWA1)	30
F6	-	SB6 - Fuse 6 on fuse holder	5A	-	J285-Control unit with display in dash panel insert	30
F7	-	Vacant	-	-
F8	-	SB8 - Fuse 8 on fuse holder	15A	-	J503 - Control unit with display for radio and navigation system R - Radio	30
F9	-	SB9 - Fuse 9 on fuse holder	5A	-	J412 - Mobile telephone operating electronics control unit R36 - Telephone transmitter and receiver unit	30
F10	-	SB10 - Fuse 10 on fuse holder	5A	-	J317- Terminal 30 voltage supply relay (AZV, BKC, BKD, BLS, BMM and BXE)	30
			10A	-	J220 - Motronic control unit (BVY and BVZ) J271 - Motronic current supply relay (BVY, BVZ and BWA1)
F11	-	Vacant	-	-
F12	-	SB12 - Fuse 12 on fuse holder	5A	-	J533 - Data bus diagnostic interface	30

León	Fitting Locations	No.  802 / 16

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F13	-	SB13 - Fuse 13 on fuse holder	25A	-	J220 - Motronic control unit (BVY, BVZ and BWA1) J361 - Simos control unit (BSE and BSF)	87
			30A	-	J248- Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM and BXE)
F14	-	SB14 - Fuse 14 on fuse holder	20A	-	N70 - Ignition coil 1 with output stage (BVY, BVZ and BWA1) N127 - Ignition coil 2 with output stage (BVY, BVZ and BWA1) N152 - Ignition transformer (BSE and BSF) N291 - Ignition coil 3 with output stage (BVY, BVZ and BWA1) N292 - Ignition coil 4 with output stage (BVY, BVZ and BWA1)	87
F15	-	SB15 - Fuse 15 on fuse holder	5A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM and BXE) J160 - Circulation pump relay (BWA1) J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM and BXE)	87
			10A	-	Z29 - Lambda probe 1 heater after catalytic converter (BVY and BVZ) Z30 - Lambda probe 2 heater after catalytic converter (BVY) Z64 - Lambda probe 3 heater after catalytic converter (BVY)
F16	-	SB16 - Fuse 16 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F17	-	SB17 - Fuse 17 on fuse holder	15A	-	J519 - Onboard power supply control unit	30
F18	-	Vacant	-	-
F19	-	SB19 - Fuse 19 on fuse holder	30A	-	J400- Driver side wiper motor control unit	30

León	Fitting Locations	No.  802 / 17

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F20	-	Vacant	-	-
F21	-	SB21 - Fuse 21 on fuse holder	10A	-	Z19 - Lambda probe heater (BLS and BMM)	87
			15A	-	Z19 - Lambda probe heater (BVY and BVZ) G39 - Lambda probe (BSE and BSF) G130 - Lambda probe after catalytic converter (BSE and BSF)
F22	-	SB22 - Fuse 22 on fuse holder	5A	-	G476- Clutch position sender F - Brake light switch	87
F23	-	SB23 - Fuse 23 on fuse holder	5A	-	J299- Secondary air pump relay (BSE)	87
			10A	-	N18 - Exhaust gas recirculation valve (AZV, BKC, BKD and BXE) N75 - Charge pressure control solenoid valve (AZV, BKC, BKD, BLS, BMM and BXE) N345 - Exhaust gas recirculation cooler change-over valve (AZV, BKC, BKD, BLS, BMM and BXE)
			15A	-	J160 - Circulation pump relay (BWA1) J670 - Motronic current supply relay 2 (BWA1) N276 -Fuel pressure regulating valve (BVY and BVZ)

León	Fitting Locations	No.  802 / 18

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F24	-	SB24 - Fuse 24 on fuse holder	10A	-	J293 - Radiator fan control unit N18 - Exhaust gas recirculation valve (BSE and BSF) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BSE, BSF, BVY and BVZ) N156 - Variable intake manifold change-over valve (BSE, BSF, BVY and BVZ) N205 - Inlet camshaft control valve 1 (BVY, BVZ and BWA1) V7 - Radiator fan V157 - Intake manifold flap motor (AZV, BKC, BKD and BXE)	87
F25	-	SB25 - Fuse 25 on fuse holder	40A	-	J519 - Onboard power supply control unit	30
F26	-	SB26 - Fuse 26 on fuse holder	40A	-	J519 - Onboard power supply control unit	30
F27	-	SB27 - Fuse 27 on fuse holder	40A	-	V101- Secondary air pump motor (BSE)	87
			50A	-	J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM and BXE)	30
F28	-	SB28 - Fuse 28 on fuse holder	40A	-	J681 - Terminal 15 voltage supply relay 2	30
F29	-	SB29 - Fuse 29 on fuse holder	30A	-	G273 - Interior monitoring sensor H12 - Alarm horn J39 - Headlight washer system relay J245 - Sliding sunroof adjustment control unit J393 - Convenience system central control unit	30
			50A	-	G273 - Interior monitoring sensor H12 - Alarm horn J39 - Headlight washer system relay J245 - Sliding sunroof adjustment control unit J388 - Rear left door control unit J389 - Rear right door control unit J393 - Convenience system central control unit
F30	-	SB30 - Fuse 30 on fuse holder	40A	-	J59 - X-contact relief relay	30

León	Fitting Locations	No.  802 / 19

SEAT LEON 2007 Position of fuses, from May 2006

Position of fuses, from May 2006

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	-	SB1 - Fuse 1 on fuse holder	30A	-	J584- Front passenger side wiper motor control unit	30
F2	-	SB2 - Fuse 2 on fuse holder	5A	-	J527 - Steering column electronics control unit	30
F3	-	SB3 - Fuse 3 on fuse holder	5A	-	J519 - Onboard power supply control unit (via F/7)	30
F4	-	SB4 - Fuse 4 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F5	-	SB5 - Fuse 5 on fuse holder	15A	-	J743- Mechatronic unit for dual clutch gearbox (AZV, BKD, BMM and BWA)	30
F6	-	SB6 - Fuse 6 on fuse holder	5A	-	J285-Control unit with display in dash panel insert	30
F7	-	Vacant	-	-
F8	-	SB8 - Fuse 8 on fuse holder	15A	-	J503 - Control unit with display for radio and navigation system R - Radio	30
F9	-	SB9 - Fuse 9 on fuse holder	5A	-	J412 - Mobile telephone operating electronics control unit R36 - Telephone transmitter and receiver unit R94 - Navigation system interface (Tom-Tom Navigator)	30
F10	-	SB10 - Fuse 10 on fuse holder	5A	-	J220 - Motronic control unit (BVY and BVZ) J317 - Terminal 30 voltage supply relay (AZV, BKC, BKD, BLS, BMM, BMN and BXE) J271 - Motronic current supply relay (BVY and BVZ)	30
			10A	-	J220 - Motronic control unit (BWA) J271 - Motronic current supply relay (BWA) J317 - Terminal 30 voltage supply relay (BXW) J537 - 4HV control unit (BXW)

León	Fitting Locations	No.  802 / 20

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F11	-	Vacant	-	-
F12	-	SB12 - Fuse 12 on fuse holder	5A	-	J533 - Data bus diagnostic interface	30
F13	-	SB13 - Fuse 13 on fuse holder	15A	-	J220 - Motronic control unit (BVY, BVZ and BWA) J361 - Simos control unit (BSE and BSF) J537 - 4HV control unit (BXW)	87
			30A	-	J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE)
F14	-	SB14 - Fuse 14 on fuse holder	20A	-	N70 - Ignition coil 1 with output stage (BVY, BVZ, BWA and BXW) N127 - Ignition coil 2 with output stage (BVY, BVZ, BWA and BXW) N152 - Ignition transformer (BSE and BSF) N291 - Ignition coil 3 with output stage (BVY, BVZ, BWA and BXW) N292 - Ignition coil 4 with output stage (BVY, BVZ, BWA and BXW)	87
F15	-	SB15 - Fuse 15 on fuse holder	5A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN and BXE) J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE)	87
			10A	-	- Injectors (BXW) J160 - Circulation pump relay (BWA) Z29 - Lambda probe 1 heater after catalytic converter (BVY and BVZ) Z30 - Lambda probe 2 heater after catalytic converter (BVY) Z64 - Lambda probe 3 heater after catalytic converter (BVY)

León	Fitting Locations	No.  802 / 21

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F16	-	SB16 - Fuse 16 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F17	-	SB17 - Fuse 17 on fuse holder	15A	-	J519 - Onboard power supply control unit (via J/3)	30
F18	-	Vacant	-	-
F19	-	SB19 - Fuse 19 on fuse holder	30A	-	J400- Driver side wiper motor control unit	30
F20	-	Vacant	-	-
F21	-	SB21 - Fuse 21 on fuse holder	10A	-	Z19 - Lambda probe heater (BLS, BMM and BMN)	87
			15A	-	Z19 - Lambda probe heater (BVY and BVZ) G39 - Lambda probe (BSE, BSF and BXW) G130 - Lambda probe after catalytic converter (BSE, BSF and BXW)
F22	-	SB22 - Fuse 22 on fuse holder	5A	-	G476- Clutch position sender	87

León	Fitting Locations	No.  802 / 22

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F23	-	SB23 - Fuse 23 on fuse holder	5A	-	J160 - Circulation pump relay (BWA) J299- Secondary air pump relay (BSE) J670 - Motronic current supply relay 2 (BWA)	87
			10A	-	N18 - Exhaust gas recirculation valve (AZV, BKC, BKD and BXE) N75 - Charge pressure control solenoid valve (AZV, BKC, BKD, BLS, BMM, BMN and BXE) N316 - Intake manifold flap valve (BMN) N345 - Exhaust gas recirculation cooler change-over valve (AZV, BKC, BKD, BLS, BMM, BMN and BXE)
			15A	-	N276 -Fuel pressure regulating valve (BVY and BVZ)
F24	-	SB24 - Fuse 24 on fuse holder	10A	-	N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BSE, BSF, BVY, BVZ and BXW) N156 - Variable intake manifold change-over valve (BSE, BSF, BVY and BVZ) N205 - Inlet camshaft control valve 1 (BVY, BVZ and BWA) V7 - Radiator fan V157 - Intake manifold flap motor (AZV, BKC, BKD and BXE)	87

León	Fitting Locations	No.  802 / 23

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F25	-	SB25 - Fuse 25 on fuse holder	30A	-	J519 - Onboard power supply control unit (via A/1)	30
F26	-	SB26 - Fuse 26 on fuse holder	30A	-	J519 -Onboard power supply control unit (via D/1)	30
F27	-	SB27 - Fuse 27 on fuse holder	40A	-	V101- Secondary air pump motor (BSE)	87
			50A	-	J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE)	30
F28	-	SB28 - Fuse 28 on fuse holder	40A	-	J681 - Terminal 15 voltage supply relay 2	30
F29	-	SB29 - Fuse 29 on fuse holder	50A	-	J245 - Sliding sunroof adjustment control unit J393-Convenience system central control unit (without Autolock function) J774 -Heated front seats control unit	30
F30	-	SB30 - Fuse 30 on fuse holder	50A	-	J59 - X-contact relief relay	30

León	Fitting Locations	No.  802 / 24

SEAT LEON 2007 Position of fuses, from November 2006

Position of fuses, from November 2006

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	-	SB1 - Fuse 1 on fuse holder	30A	-	J584- Front passenger side wiper motor control unit	30
F2	-	SB2 - Fuse 2 on fuse holder	5A	-	J527 - Steering column electronics control unit	30
F3	-	SB3 - Fuse 3 on fuse holder	5A	-	J519 - Onboard power supply control unit (via F/7)	30
F4	-	SB4 - Fuse 4 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F5	-	SB5 - Fuse 5 on fuse holder	15A	-	J743- Mechatronic unit for dual clutch gearbox (AZV, BKD, BMM and BWA)	30
F6	-	SB6 - Fuse 6 on fuse holder	5A	-	J285-Control unit with display in dash panel insert	30
F7	-	Vacant	-	-
F8	-	SB8 - Fuse 8 on fuse holder	15A	-	J503 - Control unit with display for radio and navigation system R - Radio	30
F9	-	SB9 - Fuse 9 on fuse holder	5A	-	J412 - Mobile telephone operating electronics control unit R36 - Telephone transmitter and receiver unit R94 - Navigation system interface (Tom-Tom Navigator)	30
F10	-	SB10 - Fuse 10 on fuse holder	5A	-	J220 - Motronic control unit (BVY and BVZ) J317 - Terminal 30 voltage supply relay (AZV, BKC, BKD, BLS, BMM, BMN and BXE) J271 - Motronic current supply relay (BVY and BVZ)	30
			10A	-	J220 - Motronic control unit (BWA and BWJ) J271 - Motronic current supply relay (BWA and BWJ) J317 - Terminal 30 voltage supply relay (BXW) J537 - 4HV control unit (BXW)

León	Fitting Locations	No.  802 / 25

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F11	-	Vacant	-	-
F12	-	SB12 - Fuse 12 on fuse holder	5A	-	J533 - Data bus diagnostic interface	30
F13	-	SB13 - Fuse 13 on fuse holder	15A	-	J220 - Motronic control unit (BVY, BVZ, BWA and BWJ) J361 - Simos control unit (BSE and BSF) J537 - 4HV control unit (BXW)	87
			30A	-	J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE)
F14	-	SB14 - Fuse 14 on fuse holder	20A	-	N70 - Ignition coil 1 with output stage (BVY, BVZ, BWA, BWJ and BXW) N127 - Ignition coil 2 with output stage (BVY, BVZ, BWA, BWJ and BXW) N152 - Ignition transformer (BSE and BSF) N291 - Ignition coil 3 with output stage (BVY, BVZ, BWA, BWJ and BXW) N292 - Ignition coil 4 with output stage (BVY, BVZ, BWA, BWJ and BXW)	87
F15	-	SB15 - Fuse 15 on fuse holder	5A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN and BXE) J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE)	87

León	Fitting Locations	No.  802 / 26

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F15	-	SB15 - Fuse 15 on fuse holder	10A	-	- Injectors (BXW) J160 - Circulation pump relay (BWA and BWJ) Z29 - Lambda probe 1 heater after catalytic converter (BVY and BVZ) Z30 - Lambda probe 2 heater after catalytic converter (BVY) Z64 - Lambda probe 3 heater after catalytic converter (BVY)	87
F16	-	SB16 - Fuse 16 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F17	-	SB17 - Fuse 17 on fuse holder	15A	-	J519 - Onboard power supply control unit (via J/3)	30
F18	-	Vacant	-	-
F19	-	SB19 - Fuse 19 on fuse holder	30A	-	J400- Driver side wiper motor control unit	30
F20	-	Vacant	-	-
F21	-	SB21 - Fuse 21 on fuse holder	10A	-	Z19 - Lambda probe heater (BLS, BMM and BMN)	87
			15A	-	Z19 - Lambda probe heater (BVY and BVZ) G39 - Lambda probe (BSE, BSF and BXW) G130 - Lambda probe after catalytic converter (BSE, BSF and BXW)
F22	-	SB22 - Fuse 22 on fuse holder	5A	-	G476- Clutch position sender	87

León	Fitting Locations	No.  802 / 27

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F23	-	SB23 - Fuse 23 on fuse holder	5A	-	J160 - Circulation pump relay (BWA and BWJ) J299- Secondary air pump relay (BSE) J670 - Motronic current supply relay 2 (BWA and BWJ)	87
			10A	-	N18 - Exhaust gas recirculation valve (AZV, BKC, BKD and BXE) N75 - Charge pressure control solenoid valve (AZV, BKC, BKD, BLS, BMM, BMN and BXE) N316 - Intake manifold flap valve (BMN) N345 - Exhaust gas recirculation cooler change-over valve (AZV, BKC, BKD, BLS, BMM, BMN and BXE)
			15A	-	N276 -Fuel pressure regulating valve (BVY and BVZ)

León	Fitting Locations	No.  802 / 28

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F24	-	SB24 - Fuse 24 on fuse holder	10A	-	N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BSE, BSF, BVY, BVZ and BXW) N156 - Variable intake manifold change-over valve (BSE, BSF, BVY and BVZ) N205 - Inlet camshaft control valve 1 (BVY, BVZ, BWA and BWJ) V7 - Radiator fan V157 - Intake manifold flap motor (AZV, BKC, BKD and BXE)	87
F25	-	SB25 - Fuse 25 on fuse holder	30A	-	J519 - Onboard power supply control unit (via A/1)	30
F26	-	SB26 - Fuse 26 on fuse holder	30A	-	J519 -Onboard power supply control unit (via D/1)	30
F27	-	SB27 - Fuse 27 on fuse holder	40A	-	V101- Secondary air pump motor (BSE)	87
			50A	-	J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE)	30
F28	-	SB28 - Fuse 28 on fuse holder	40A	-	J681 - Terminal 15 voltage supply relay 2	30
F29	-	SB29 - Fuse 29 on fuse holder	50A	-	J245 - Sliding sunroof adjustment control unit J393-Convenience system central control unit (without Autolock function) J774 -Heated front seats control unit	30
F30	-	SB30 - Fuse 30 on fuse holder	50A	-	J59 - X-contact relief relay	30

León	Fitting Locations	No.  802 / 29

SEAT LEON 2007 Position of fuses, from May 2007

Position of fuses, from May 2007

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	-	SB1 - Fuse 1 on fuse holder	30A	-	J584- Front passenger side wiper motor control unit	30
F2	-	SB2 - Fuse 2 on fuse holder	5A	-	J527 - Steering column electronics control unit	30
F3	-	SB3 - Fuse 3 on fuse holder	5A	-	J519 - Onboard power supply control unit (via F/7)	30
F4	-	SB4 - Fuse 4 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F5	-	SB5 - Fuse 5 on fuse holder	15A	-	J743 - Mechatronic unit for dual clutch gearbox (AZV, BKD, BLS, BMM and BWA)	30
F6	-	SB6 - Fuse 6 on fuse holder	5A	-	J285-Control unit with display in dash panel insert	30
F7	-	Vacant	-	-
F8	-	SB8 - Fuse 8 on fuse holder	15A	-	J503 - Control unit with display for radio and navigation system R - Radio	30
F9	-	SB9 - Fuse 9 on fuse holder	5A	-	R36 - Telephone transmitter and receiver unit R94 - Navigation system interface (Tom-Tom Navigator)	30

León	Fitting Locations	No.  802 / 30

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F10	-	SB10 - Fuse 10 on fuse holder	5A	-	J220 - Motronic control unit (BVY and BVZ) J271 - Motronic current supply relay (BVY, BVZ and CAXC) J317 - Terminal 30 voltage supply relay (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J623 - Engine control unit (CAXC)	30
			10A	-	J220 - Motronic control unit (BWA and BWJ) J271 - Motronic current supply relay (BWA, BWJ and BZB) J317 - Terminal 30 voltage supply relay (BXW) J537 - 4HV control unit (BXW) J623 - Engine control unit (BZB)
F11	-	Vacant	-	-
F12	-	SB12 - Fuse 12 on fuse holder	5A	-	J533 - Data bus diagnostic interface	30
F13	-	SB13 - Fuse 13 on fuse holder	15A	-	J220 - Motronic control unit (BVY, BVZ, BWA and BWJ) J361 - Simos control unit (BSE, BSF and CCSA) J537 - 4HV control unit (BXW) J623 - Engine control unit (BZB and CAXC)	87
			30A	-	J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF)
F14	-	SB14 - Fuse 14 on fuse holder	20A	-	N70 - Ignition coil 1 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC) N127 - Ignition coil 2 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC) N152 - Ignition transformer (BSE, BSF and CCSA) N291 - Ignition coil 3 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC) N292 - Ignition coil 4 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC)	87

León	Fitting Locations	No.  802 / 31

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F15	-	SB15 - Fuse 15 on fuse holder	5A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J359 - Low heat output relay J360 - High heat output relay	87
			10A	-	- Injectors (BXW) J160 - Circulation pump relay (BWA and BWJ) Z19 - Lambda probe heater (CAXC) Z29 - Lambda probe 1 heater after catalytic converter (BVY, BVZ and CAXC) Z30 - Lambda probe 2 heater after catalytic converter (BVY) Z64 - Lambda probe 3 heater after catalytic converter (BVY)
F16	-	SB16 - Fuse 16 on fuse holder	30A	-	J104- ABS control unit with EDL/ESP	30
F17	-	SB17 - Fuse 17 on fuse holder	15A	-	J519 - Onboard power supply control unit (via J/3)	30
F18	-	Vacant	-	-
F19	-	SB19 - Fuse 19 on fuse holder	30A	-	J400- Driver side wiper motor control unit	30
F20	-	SB20 - Fuse 20 on fuse holder	10A	-	V50 - Coolant circulation pump (CAXC)	87
			20A	-	N276 - Fuel pressure regulating valve (BZB)

León	Fitting Locations	No.  802 / 32

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F21	-	SB21 - Fuse 21 on fuse holder	10A	-	Z19 - Lambda probe heater (BLS, BMM and BMN)	87
			15A	-	Z19 - Lambda probe heater (BVY, BVZ and BZB) G39 - Lambda probe (BSE, BSF, BXW and CCSA) G130 - Lambda probe after catalytic converter (BSE, BSF, BXW and CCSA)
F22	-	SB22 - Fuse 22 on fuse holder	5A	-	G476- Clutch position sender	87
F23	-	SB23 - Fuse 23 on fuse holder	5A	-	J151 - Continued coolant circulation relay (BZB) J160 - Circulation pump relay (BWA and BWJ) J299 - Secondary air pump relay (BSE and CCSA) J670 - Motronic current supply relay 2 (BWA and BWJ)	87
			10A	-	N18 - Exhaust gas recirculation valve (AZV, BKC, BKD, BXE and BXF) N75 - Charge pressure control solenoid valve (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) N316 - Intake manifold flap valve (BMN) N345 - Exhaust gas recirculation cooler change-over valve (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF)
			15A	-	N276 - Fuel pressure regulating valve (BVY, BVZ and CAXC)

León	Fitting Locations	No.  802 / 33

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F24	-	SB24 - Fuse 24 on fuse holder	10A	-	J496 - Additional coolant pump relay (CAXC) J757 - Engine component current supply relay (BZB) N75 - Charge pressure control solenoid valve (BZB and CAXC) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BSE, BSF, BVY, BVZ, BXW, BZB, CAXC and CCSA) N156 - Variable intake manifold change-over valve (BSE, BSF, BVY, BVZ and CCSA) N205 - Inlet camshaft control valve 1 (BVY, BVZ, BWA, BWJ, BZB and CAXC) N249 - Turbocharger air recirculation valve (BZB and CAXC) N316 - Intake manifold flap valve (BZB) V7 - Radiator fan V157 - Intake manifold flap motor (AZV, BKC, BKD, BXE and BXF)	87
F25	-	SB25 - Fuse 25 on fuse holder	30A	-	J519 - Onboard power supply control unit (via A/1)	30
F26	-	SB26 - Fuse 26 on fuse holder	30A	-	J519 -Onboard power supply control unit (via D/1)	30
F27	-	SB27 - Fuse 27 on fuse holder	40A	-	V101 - Secondary air pump motor (BSE and CCSA)	87
			50A	-	J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF)	30
F28	-	SB28 - Fuse 28 on fuse holder	40A	-	J681 - Terminal 15 voltage supply relay 2	30

León	Fitting Locations	No.  802 / 34

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F29	-	SB29 - Fuse 29 on fuse holder	50A	-	J245 - Sliding sunroof adjustment control unit J393-Convenience system central control unit (without Autolock function) J774 -Heated front seats control unit J39 - Headlight washer system relay	30
F30	-	SB30 - Fuse 30 on fuse holder	50A	-	J59 - X-contact relief relay	30

León	Fitting Locations	No.  802 / 35

SEAT LEON 2007 Position of fuses, from May 2008

Position of fuses, from May 2008

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F1	-	SB1 - Fuse 1 on fuse holder	30A	-	J584- Front passenger side wiper motor control unit	30
F2	-	Vacant	-	-	Vacant
F3	-	SB3 - Fuse 3 on fuse holder	5A	-	J519 - Onboard power supply control unit (via F/7)	30
F4	-	SB4 - Fuse 4 on fuse holder	20A	-	J104- ABS control unit with EDL/ESP	30
F5	-	SB5 - Fuse 5 on fuse holder	15A	-	J743 - Mechatronic unit for dual clutch gearbox (AZV, BKD, BLS, BMM and BWA)	30
F6	-	SB6 - Fuse 6 on fuse holder	5A	-	J285-Control unit with display in dash panel insert J527 - Steering column electronics control unit	30
F7	-	SB7 - Fuse 7 on fuse holder	40A	-	J681 - Terminal 15 voltage supply relay 2	30
F8	-	SB8 - Fuse 8 on fuse holder	15A	-	J503 - Control unit with display for radio and navigation system R - Radio	30
F9	-	SB9 - Fuse 9 on fuse holder	5A	-	R36 - Telephone transmitter and receiver unit R94 - Navigation system interface (Tom-Tom Navigator)	30

León	Fitting Locations	No.  802 / 36

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F10	-	SB10 - Fuse 10 on fuse holder	5A	-	J220 - Motronic control unit (BVY and BVZ) J271 - Motronic current supply relay (BVY, BVZ and CAXC) J317 - Terminal 30 voltage supply relay (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J623 - Engine control unit (CAXC)	30
			10A	-	J220 - Motronic control unit (BWA and BWJ) J271 - Motronic current supply relay (BWA, BWJ and BZB) J317 - Terminal 30 voltage supply relay (BXW) J537 - 4HV control unit (BXW) J623 - Engine control unit (BZB)
F11	-	Vacant	-	-
F12	-	SB12 - Fuse 12 on fuse holder	5A	-	J533 - Data bus diagnostic interface	30
F13	-	SB13 - Fuse 13 on fuse holder	15A	-	J220 - Motronic control unit (BVY, BVZ, BWA and BWJ) J361 - Simos control unit (BSE, BSF and CCSA) J537 - 4HV control unit (BXW) J623 - Engine control unit (BZB and CAXC)	87
			30A	-	J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF)
F14	-	SB14 - Fuse 14 on fuse holder	20A	-	N70 - Ignition coil 1 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC) N127 - Ignition coil 2 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC) N152 - Ignition transformer (BSE, BSF and CCSA) N291 - Ignition coil 3 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC) N292 - Ignition coil 4 with output stage (BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC)	87

León	Fitting Locations	No.  802 / 37

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F15	-	SB15 - Fuse 15 on fuse holder	5A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J359 - Low heat output relay J360 - High heat output relay	87
			10A	-	- Injectors (BXW) J160 - Circulation pump relay (BWA and BWJ) Z19 - Lambda probe heater (CAXC) Z29 - Lambda probe 1 heater after catalytic converter (BVY, BVZ and CAXC) Z30 - Lambda probe 2 heater after catalytic converter (BVY) Z64 - Lambda probe 3 heater after catalytic converter (BVY)
F16	-	SB16 - Fuse 16 on fuse holder	30A	-	J519 - Onboard power supply control unit (via A/1)	30
F17	-	SB17 - Fuse 17 on fuse holder	15A	-	J519 - Onboard power supply control unit (via J/3)	30
F18	-	Vacant	-	-
F19	-	SB19 - Fuse 19 on fuse holder	30A	-	J400- Driver side wiper motor control unit	30
F20	-	SB20 - Fuse 20 on fuse holder	10A	-	V50 - Coolant circulation pump (CAXC)	87
			20A	-	N276 - Fuel pressure regulating valve (BZB)

León	Fitting Locations	No.  802 / 38

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F21	-	SB21 - Fuse 21 on fuse holder	10A	-	Z19 - Lambda probe heater (BLS, BMM and BMN)	87
			15A	-	Z19 - Lambda probe heater (BVY, BVZ and BZB) G39 - Lambda probe (BSE, BSF, BXW and CCSA) G130 - Lambda probe after catalytic converter (BSE, BSF, BXW and CCSA)
F22	-	SB22 - Fuse 22 on fuse holder	5A	-	G476- Clutch position sender	87
F23	-	SB23 - Fuse 23 on fuse holder	5A	-	J151 - Continued coolant circulation relay (BZB) J160 - Circulation pump relay (BWA and BWJ) J299 - Secondary air pump relay (BSE and CCSA) J670 - Motronic current supply relay 2 (BWA and BWJ)	87
			10A	-	N18 - Exhaust gas recirculation valve (AZV, BKC, BKD, BXE and BXF) N75 - Charge pressure control solenoid valve (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) N316 - Intake manifold flap valve (BMN) N345 - Exhaust gas recirculation cooler change-over valve (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF)
			15A	-	N276 - Fuel pressure regulating valve (BVY, BVZ and CAXC)

León	Fitting Locations	No.  802 / 39

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F24	-	SB24 - Fuse 24 on fuse holder	10A	-	J496 - Additional coolant pump relay (CAXC) J757 - Engine component current supply relay (BZB) N75 - Charge pressure control solenoid valve (BZB and CAXC) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BSE, BSF, BVY, BVZ, BXW, BZB, CAXC and CCSA) N156 - Variable intake manifold change-over valve (BSE, BSF, BVY, BVZ and CCSA) N205 - Inlet camshaft control valve 1 (BVY, BVZ, BWA, BWJ, BZB and CAXC) N249 - Turbocharger air recirculation valve (BZB and CAXC) N316 - Intake manifold flap valve (BZB) V7 - Radiator fan V157 - Intake manifold flap motor (AZV, BKC, BKD, BXE and BXF)	87
F25	-	SB25 - Fuse 25 on fuse holder	40A	-	J104- ABS control unit with EDL/ESP	30
F26	-	SB26 - Fuse 26 on fuse holder	30A	-	J519 -Onboard power supply control unit (via D/1)	30
F27	-	SB27 - Fuse 27 on fuse holder	40A	-	V101 - Secondary air pump motor (BSE and CCSA)	87
			50A	-	J179- Automatic glow period control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF)	30
F28	-	Vacant	-	-	Vacant

León	Fitting Locations	No.  802 / 40

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
F29	-	SB29 - Fuse 29 on fuse holder	50A	-	J245 - Sliding sunroof adjustment control unit J393-Convenience system central control unit (without Autolock function) J774 -Heated front seats control unit J39 - Headlight washer system relay	30
F30	-	SB30 - Fuse 30 on fuse holder	50A	-	J59 - X-contact relief relay	30

León	Fitting Locations	No.  802 / 41

SEAT LEON 2007 Fuses (SC) in fuse holder under left dash panel

Fuses (SC) in fuse holder under left 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

León	Fitting Locations	No.  802 / 42

SEAT LEON 2007 Position of fuses, from April 2005

Position of fuses, from April 2005

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder	10A	-	- Diagnosis connection (T16/1) J220 - Motronic control unit (BLR and BWA1) J248- Diesel direct injection system control unit (AZV, BKC and BKD) J317 - Terminal 30 voltage supply relay (BSE) J361 - Simos control unit (BSE) J363 - Current supply relay for Simos control unit (BSE) J538 - Fuel pump control unit (BLR and BWA1)	15
2	-	SC2 - Fuse 2 on fuse holder	5A	-	J104 - ABS control unit with EDL	15
3	-	SC3 - Fuse 3 on fuse holder	5A	-	J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp	15
4	-	SC4 - Fuse 4 on fuse holder	5A	-	E16- Heater/heat output switch E226 - Tyre pressure monitor button E256 - TCS and ESP button F4 - Reversing light switch G65 - High-pressure sender J131 - Heated driver seat control unit J132 - Heated front passenger seat control unit J255 - Climatronic control unit	15
5	-	SC5 - Fuse 5 on fuse holder	5A	-	E102 - Headlight range control regulator J431 - Headlight range control, control unit V48 - Left headlight range control motor V49 - Right headlight range control motor	15

León	Fitting Locations	No.  802 / 43

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
6	-	SC6 - Fuse 6 on fuse holder	5A	-	E313 - Selector lever (AZV, BKD and BWA1) F189 - Tiptronic switch (BLR) J285-Control unit with display in dash panel insert J500 - Power steering control unit J533 - Data bus diagnostic interface J743 - Mechatronics for dual clutch gearbox (AZV, BKD and BWA1)	15
7	-	SC7 - Fuse 7 on fuse holder	5A	-	J412 - Mobile telephone operating electronics control unit Y7 - Automatic anti-dazzle interior mirror Z2 -Heated windscreen	15
8	-	SC8 - Fuse 8 on fuse holder	5A	-	J345 - Trailer detector control unit	15
9	-	Vacant	-	-
10	-	Vacant	-	-
11	-	Vacant	-	-
12	-	SC12 - Fuse 12 on fuse holder	10A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30
13	-	SC13 - Fuse 13 on fuse holder	10A	-	- Diagnosis connection (T16/16) E1 - Lighting switch F - Brake light switch	30
14	-	SC14 - Fuse 14 on fuse holder	5A	-	J217-Automatic gearbox control unit (BLR)	30
15	-	SC15 - Fuse 15 on fuse holder	7.5A	-	J519 - Onboard power supply control unit	30
16	-	SC16 - Fuse 16 on fuse holder	10A	-	E16- Heater/heat output switch J255 - Climatronic control unit J301 - Air conditioning system control unit	30

León	Fitting Locations	No.  802 / 44

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
17	-	SC17 - Fuse 17 on fuse holder	5A	-	G397 - Rain and light detector sensor	30
18	-	SC18 - Fuse 18 on fuse holder	5A	-	E313 - Selector lever (AZV, BKD and BWA1) F189 - Tiptronic switch (BLR) J446 - Parking aid control unit	30
19	-	Vacant	-	-
20	-	SC20 - Fuse 20 on fuse holder	5A	-	J104- ABS control unit with EDL/ESP	30
21	-	Vacant	-	-
22	-	SC22 - Fuse 22 on fuse holder	40A	-	V2 - Fresh air blower	30
23	-	SC23 - Fuse 23 on fuse holder	30A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30
24	-	SC24 - Fuse 24 on fuse holder	25A	-	U1 - Cigarette lighter	30
25	-	SC25-Fuse 25 on fuse holder	25A	-	J519 - Onboard power supply control unit	30
26	-	SC26 - Fuse 26 on fuse holder	30A	-	U5- 12 V socket, rear U18 - 12 V socket 2, in luggage compartment	30
27	-	SC27 - Fuse 27 on fuse holder	15A	-	J17 - Fuel pump relay (AZV, BKC, BKD and BSE) J363 - Current supply relay for Simos control unit (BSE) J538 - Fuel pump control unit (BLR and BWA1)	30
28	-	Vacant	-	-
29	-	SC29 - Fuse 29 on fuse holder	10A	-	G70 - Air mass meter N51- Intake manifold preheating heater element	15
30	-	SC30 - Fuse 30 on fuse holder	20A	-	- Injectors (BSE)	15

León	Fitting Locations	No.  802 / 45

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
31	-	SC31 - Fuse 31 on fuse holder	20A	-	J57- Vacuum pump relay (BLR with automatic gearbox 09G)	15
32	-	SC32 - Fuse 32 on fuse holder	30A	-	J388 - Rear left door control unit J389 - Rear right door control unit	30
33	-	SC33 - Fuse 33 on fuse holder	25A	-	J245 - Sliding sunroof adjustment control unit	30
34	-	SC34 - Fuse 34 on fuse holder	25A	-	J393 - Convenience system central control unit	30
35	-	SC35 - Fuse 35 on fuse holder	5A	-	G273 - Interior monitoring sensor H12 - Alarm horn J393 - Convenience system central control unit	30
36	-	SC36 - Fuse 36 on fuse holder	20A	-	J39 - Headlight washer system relay	30
37	-	SC37 - Fuse 37 on fuse holder	30A	-	J131 - Heated driver seat control unit J132 - Heated front passenger seat control unit	30
38	-	SC38 - Fuse 38 on fuse holder	10A	-	N75 - Charge pressure control solenoid valve (BWA1) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BWA1) N249 - Turbocharger air recirculation valve (BWA1)	87
39	-	SC39 - Fuse 39 on fuse holder	20A	-	F125 - Multifunction switch (BLR) J217-Automatic gearbox control unit (BLR)	15
40	-	SC40 - Fuse 40 on fuse holder	40A	-	E16- Heater/heat output switch	75
41	-	SC41 - Fuse 41 on fuse holder	15A	-	V12 - Rear window wiper motor	75
42	-	SC42 - Fuse 42 on fuse holder	15A	-	J519 - Onboard power supply control unit	75
43	-	SC43 - Fuse 43 on fuse holder	15A	-	J345 - Trailer detector control unit	30
44	-	SC44 - Fuse 44 on fuse holder	20A	-	J345 - Trailer detector control unit	30
45	-	SC45 - Fuse 45 on fuse holder	15A	-	J345 - Trailer detector control unit	30

León	Fitting Locations	No.  802 / 46

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
46	-	SC46 - Fuse 46 on fuse holder	5A	-	E16- Heater/heat output switch J255 - Climatronic control unit J301 - Air conditioning system control unit Z20 - Left washer jet heater element Z21 - Right washer jet heater element	75
47	-	SC47 - Fuse 47 on fuse holder	10A	-	Z19- Lambda probe heater (BWA1)	87
48	-	SC48 - Fuse 48 on fuse holder	10A	-	Z29- Lambda probe 1 heater after catalytic converter (BWA1)	87
49	-	SC49 - Fuse 49 on fuse holder	7.5A	-	E1 - Lighting switch	75

León	Fitting Locations	No.  802 / 47

SEAT LEON 2007 Position of fuses, from November 2005

Position of fuses, from November 2005

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder	10A	-	- Diagnosis connection (T16/1) J220 - Motronic control unit (BVY, BVZ and BWA1) J248- Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM and BXE) J317 - Terminal 30 voltage supply relay (BSE and BSF) J361 - Simos control unit (BSE and BSF) J363 - Current supply relay for Simos control unit (BSE and BSF) J538 - Fuel pump control unit (BVY, BVZ and BWA1)	15
2	-	SC2 - Fuse 2 on fuse holder	5A	-	F - Brake light switch J104 - ABS control unit with EDL	15
3	-	SC3 - Fuse 3 on fuse holder	5A	-	J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp	15
4	-	SC4 - Fuse 4 on fuse holder	5A	-	E16- Heater/heat output switch E226 - Tyre pressure monitor button E256 - TCS and ESP button F4 - Reversing light switch G65 - High-pressure sender J255 - Climatronic control unit	15
5	-	SC5 - Fuse 5 on fuse holder	5A	-	E102 - Headlight range control regulator J431 - Headlight range control, control unit V48 - Left headlight range control motor V49 - Right headlight range control motor	15

León	Fitting Locations	No.  802 / 48

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
6	-	SC6 - Fuse 6 on fuse holder	5A	-	E313 - Selector lever (AZV, BKD, BMM and BWA1) F189 - Tiptronic switch (BVY and BVZ) J285-Control unit with display in dash panel insert J500 - Power steering control unit J533 - Data bus diagnostic interface J743 - Mechatronics for dual clutch gearbox (AZV, BKD, BMM and BWA1)	15
7	-	SC7 - Fuse 7 on fuse holder	5A	-	J412 - Mobile telephone operating electronics control unit Y7 - Automatic anti-dazzle interior mirror Z2 -Heated windscreen	15
8	-	SC8 - Fuse 8 on fuse holder	5A	-	J345 - Trailer detector control unit	15
9	-	Vacant	-	-
10	-	Vacant	-	-
11	-	Vacant	-	-
12	-	SC12 - Fuse 12 on fuse holder	10A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30
13	-	SC13 - Fuse 13 on fuse holder	10A	-	- Diagnosis connection (T16/16) E1 - Lighting switch	30
14	-	SC14 - Fuse 14 on fuse holder	5A	-	J217- Automatic gearbox control unit (BVY and BVZ)	30
15	-	SC15 - Fuse 15 on fuse holder	7.5A	-	J519 - Onboard power supply control unit	30
16	-	SC16 - Fuse 16 on fuse holder	10A	-	E16- Heater/heat output switch J255 - Climatronic control unit J301 - Air conditioning system control unit	30

León	Fitting Locations	No.  802 / 49

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
17	-	SC17 - Fuse 17 on fuse holder	5A	-	G397 - Rain and light detector sensor	30
18	-	SC18 - Fuse 18 on fuse holder	5A	-	E313 - Selector lever (AZV, BKD, BMM and BWA1) F189 - Tiptronic switch (BVY and BVZ) J446 - Parking aid control unit	30
19	-	Vacant	-	-
20	-	SC20 - Fuse 20 on fuse holder	5A	-	J104- ABS control unit with EDL/ESP	30
21	-	SC21-Fuse 21 on fuse holder	10A	-	N276- Fuel pressure regulating valve (BWA1)	87
22	-	SC22 - Fuse 22 on fuse holder	40A	-	V2 - Fresh air blower	30
23	-	SC23 - Fuse 23 on fuse holder	30A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30
24	-	SC24 - Fuse 24 on fuse holder	25A	-	U1 - Cigarette lighter	30
25	-	SC25-Fuse 25 on fuse holder	25A	-	J519 - Onboard power supply control unit	30
26	-	SC26 - Fuse 26 on fuse holder	30A	-	U5- 12 V socket, rear U18 - 12 V socket 2, in luggage compartment	30
27	-	SC27 - Fuse 27 on fuse holder	15A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BSE, BSF and BXE) J363 - Current supply relay for Simos control unit (BSE and BSF) J538 - Fuel pump control unit (BVY, BVZ and BWA1)	87
28	-	Vacant	-	-
29	-	SC29 - Fuse 29 on fuse holder	10A	-	G70 - Air mass meter N51- Intake manifold preheating heater element	15

León	Fitting Locations	No.  802 / 50

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
30	-	SC30 - Fuse 30 on fuse holder	20A	-	- Injectors (BSE and BSF)	15
31	-	SC31 - Fuse 31 on fuse holder	20A	-	J57- Vacuum pump relay (BVY, BVZ with ABS Mark 70 and automatic gearbox 09G)	15
32	-	SC32 - Fuse 32 on fuse holder	30A	-	J388 - Rear left door control unit J389 - Rear right door control unit	30
33	-	SC33 - Fuse 33 on fuse holder	25A	-	J245 - Sliding sunroof adjustment control unit	30
34	-	SC34 - Fuse 34 on fuse holder	25A	-	J393 - Convenience system central control unit	30
35	-	SC35 - Fuse 35 on fuse holder	5A	-	G273 - Interior monitoring sensor H12 - Alarm horn J393 - Convenience system central control unit	30
36	-	SC36 - Fuse 36 on fuse holder	20A	-	J39 - Headlight washer system relay	30
37	-	SC37 - Fuse 37 on fuse holder	30A	-	J774 -Heated front seats control unit	30
38	-	SC38 - Fuse 38 on fuse holder	10A	-	N75 - Charge pressure control solenoid valve (BWA1) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BWA1) N249 - Turbocharger air recirculation valve (BWA1)	87
39	-	SC39 - Fuse 39 on fuse holder	20A	-	F125 - Multifunction switch (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ)	15
40	-	SC40 - Fuse 40 on fuse holder	40A	-	E16- Heater/heat output switch	75
41	-	SC41 - Fuse 41 on fuse holder	15A	-	V12 - Rear window wiper motor	75

León	Fitting Locations	No.  802 / 51

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
42	-	SC42 - Fuse 42 on fuse holder	15A	-	J519 - Onboard power supply control unit	75
43	-	SC43 - Fuse 43 on fuse holder	15A	-	J345 - Trailer detector control unit	30
44	-	SC44 - Fuse 44 on fuse holder	20A	-	J345 - Trailer detector control unit	30
45	-	SC45 - Fuse 45 on fuse holder	15A	-	J345 - Trailer detector control unit	30
46	-	SC46 - Fuse 46 on fuse holder	5A	-	E16- Heater/heat output switch J255 - Climatronic control unit J301 - Air conditioning system control unit Z20 - Left washer jet heater element Z21 - Right washer jet heater element	75
47	-	SC47 - Fuse 47 on fuse holder	10A	-	Z19- Lambda probe heater (BWA1)	87
48	-	SC48 - Fuse 48 on fuse holder	10A	-	Z29- Lambda probe 1 heater after catalytic converter (BWA1)	87
49	-	SC49 - Fuse 49 on fuse holder	7.5A	-	E1 - Lighting switch	75

León	Fitting Locations	No.  802 / 52

SEAT LEON 2007 Position of fuses, from May 2006

Position of fuses, from May 2006

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder	10A	-	- Diagnosis connection (T16/1) E102 - Headlight range control regulator G70 - Air mass meter (AZV, BKC, BKD, BLS, BMM, BMN, BWA and BXE) J431 - Headlight range control, control unit J537 - 4HV control unit (BXW) J745 - Cornering light and headlight range control unit N51 - Intake manifold preheating heater element (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF and BXE) N79 - Heater element for crankcase breather (BXW) Z2 -Heated windscreen	15

León	Fitting Locations	No.  802 / 53

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
2	-	SC2 - Fuse 2 on fuse holder	10A	-	E1 - Lighting switch F - Brake light switch F189 - Tiptronic switch (BVY and BVZ) J104- ABS control unit with EDL/ESP J220 - Motronic control unit (BVY, BVZ and BWA) J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE) J317 - Terminal 30 voltage supply relay (BSE and BSF) J345 - Trailer detector control unit J361 - Simos control unit (BSE and BSF) J363 - Current supply relay for Simos control unit (BSE and BSF) J500 - Power steering control unit J533 - Data bus diagnostic interface J538 - Fuel pump control unit (BVY, BVZ and BWA) J587 - Selector lever sensors control unit (AZV, BKD, BMM, BWA) J643 - Fuel supply relay (BXW) J743 - Mechatronic unit for dual clutch gearbox (AZV, BKD, BMM, BWA) K - Dash panel insert V48 - Left headlight range control motor V49 - Right headlight range control motor	15
3	-	SC3 - Fuse 3 on fuse holder	5A	-	J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp	15

León	Fitting Locations	No.  802 / 54

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
4	-	SC4 - Fuse 4 on fuse holder	5A	-	E16- Heater/heat output switch E226 - Tyre pressure monitor button E256 - TCS and ESP button F4 - Reversing light switch G65 - High-pressure sender J255 - Climatronic control unit J301 - Air conditioning system control unit J412 - Mobile telephone operating electronics control unit R94 - Navigation system interface (Tom-Tom Navigator) Y7 - Automatic anti-dazzle interior mirror Z20 - Left washer jet heater element Z21 - Right washer jet heater element	15
5	-	SC5 - Fuse 5 on fuse holder	10A	-	J668 - Power output module for right headlight	15
6	-	SC6 - Fuse 6 on fuse holder	10A	-	J667 - Power output module for left headlight	15
7	-	Vacant	-	-
8	-	Vacant	-	-
9	-	Vacant	-	-
10	-	Vacant	-	-
11	-	Vacant	-	-
12	-	SC12 - Fuse 12 on fuse holder	10A	-	J386 - Driver door control unit (without Autolock function) J387 - Front passenger door control unit (without Autolock function) J388 - Rear left door control unit (without Autolock function) J389 - Rear right door control unit (without Autolock function)	30

León	Fitting Locations	No.  802 / 55

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
13	-	SC13 - Fuse 13 on fuse holder	10A	-	- Diagnosis connection (T16/16) E1 - Lighting switch G397 - Rain and light detector sensor	30
14	-	SC14 - Fuse 14 on fuse holder	10A	-	E16- Heater/heat output switch F189 - Tiptronic switch (BVY and BVZ) J104 - ABS control unit with EDL/ESP (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ) J255 - Climatronic control unit J301 - Air conditioning system control unit J446 - Parking aid control unit J587 - Selector lever sensors control unit (AZV, BKD, BMM and BWA)	30
15	-	SC15 - Fuse 15 on fuse holder	7.5A	-	J519 - Onboard power supply control unit (via K/5)	30
16	-	Vacant	-	-
17	-	SC17 - Fuse 17 on fuse holder	5A	-	G273 - Interior monitoring sensor H12 - Alarm horn	30
18	-	Vacant	-	-
19	-	Vacant	-	-
20	-	Vacant	-	-
21	-	SC21-Fuse 21 on fuse holder	10A	-	N276-Fuel pressure regulating valve (BWA)	87
22	-	SC22 - Fuse 22 on fuse holder	40A	-	V2 -Fresh air blower (only Climatronic)	30
23	-	SC23 - Fuse 23 on fuse holder	30A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30
24	-	Vacant	-	-
25	-	SC25-Fuse 25 on fuse holder	25A	-	J519 - Onboard power supply control unit (via K/6)	30

León	Fitting Locations	No.  802 / 56

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
26	-	SC26 - Fuse 26 on fuse holder	30A	-	J388 - Rear left door control unit J389 - Rear right door control unit	30
27	-	SC27 - Fuse 27 on fuse holder	15A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE and BXW) J363 - Current supply relay for Simos control unit (BSE and BSF) J538 - Fuel pump control unit (BVY, BVZ and BWA) J643 - Fuel supply relay (BXW) J670 - Motronic current supply relay 2 (BWA)	30
28	-	SC28 - Fuse 28 on fuse holder	30A	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
29	-	Vacant	-	-
30	-	SC30 - Fuse 30 on fuse holder	20A	-	F125 - Multifunction switch (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ)	15
31	-	SC31 - Fuse 31 on fuse holder	20A	-	J57- Vacuum pump relay (BVY and BVZ)	15
32	-	Vacant	-	-
33	-	SC33 - Fuse 33 on fuse holder	25A	-	J245 - Sliding sunroof adjustment control unit	30
34	-	SC34 - Fuse 34 on fuse holder	25A	-	J393-Convenience system central control unit (without Autolock function)	30

León	Fitting Locations	No.  802 / 57

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
35	-	Vacant	-	-
36	-	SC36 - Fuse 36 on fuse holder	20A	-	J39 - Headlight washer system relay	30
37	-	SC37 - Fuse 37 on fuse holder	30A	-	J774 -Heated front seats control unit	30
38	-	SC38 - Fuse 38 on fuse holder	10A	-	N75 - Charge pressure control solenoid valve (BWA) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BWA) N249 - Turbocharger air recirculation valve (BWA)	87
39	-	Vacant	-	-
40	-	SC40 - Fuse 40 on fuse holder	40A	-	E16- Heater/heat output switch J301 - Air conditioning system control unit	75
41	-	SC41 - Fuse 41 on fuse holder	20A	-	J519 - Onboard power supply control unit (via J/1) V12 - Rear window wiper motor	75
42	-	SC42 - Fuse 42 on fuse holder	20A	-	U1 - Cigarette lighter U5- 12 V socket, rear U18 - 12 V socket 2, in luggage compartment	75
43	-	SC43 - Fuse 43 on fuse holder	15A	-	J345 - Trailer detector control unit	30
44	-	SC44 - Fuse 44 on fuse holder	20A	-	J345 - Trailer detector control unit	30
45	-	SC45 - Fuse 45 on fuse holder	15A	-	J345 - Trailer detector control unit	30
46	-	Vacant	-	-
47	-	SC47 - Fuse 47 on fuse holder	10A	-	Z19- Lambda probe heater (BWA)	87
48	-	SC48 - Fuse 48 on fuse holder	10A	-	Z29- Lambda probe 1 heater after catalytic converter (BWA)	87
49	-	Vacant	-	-

León	Fitting Locations	No.  802 / 58

SEAT LEON 2007 Position of fuses, from November 2006

Position of fuses, from November 2006

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder	10A	-	- Diagnosis connection (T16/1) E102 - Headlight range control regulator G70 - Air mass meter (AZV, BKC, BKD, BLS, BMM, BMN, BWA, BWJ and BXE) J431 - Headlight range control, control unit J537 - 4HV control unit (BXW) J745 - Cornering light and headlight range control unit N51 - Intake manifold preheating heater element (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF and BXE) N79 - Heater element for crankcase breather (BXW) Z2 -Heated windscreen	15

León	Fitting Locations	No.  802 / 59

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
2	-	SC2 - Fuse 2 on fuse holder	10A	-	E1 - Lighting switch F - Brake light switch F189 - Tiptronic switch (BVY and BVZ) J104- ABS control unit with EDL/ESP J220 - Motronic control unit (BVY, BVZ, BWA and BWJ) J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN and BXE) J317 - Terminal 30 voltage supply relay (BSE and BSF) J345 - Trailer detector control unit J361 - Simos control unit (BSE and BSF) J363 - Current supply relay for Simos control unit (BSE and BSF) J500 - Power steering control unit J533 - Data bus diagnostic interface J538 - Fuel pump control unit (BVY, BVZ, BWA and BWJ) J587 - Selector lever sensors control unit (AZV, BKD, BMM, BWA) J643 - Fuel supply relay (BXW) J743 - Mechatronic unit for dual clutch gearbox (AZV, BKD, BMM, BWA) K - Dash panel insert V48 - Left headlight range control motor V49 - Right headlight range control motor	15
3	-	SC3 - Fuse 3 on fuse holder	5A	-	J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp	15

León	Fitting Locations	No.  802 / 60

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
4	-	SC4 - Fuse 4 on fuse holder	5A	-	E16- Heater/heat output switch E226 - Tyre pressure monitor button E256 - TCS and ESP button F4 - Reversing light switch G65 - High-pressure sender J255 - Climatronic control unit J301 - Air conditioning system control unit J412 - Mobile telephone operating electronics control unit R94 - Navigation system interface (Tom-Tom Navigator) Y7 - Automatic anti-dazzle interior mirror Z20 - Left washer jet heater element Z21 - Right washer jet heater element	15
5	-	SC5 - Fuse 5 on fuse holder	10A	-	J668 - Power output module for right headlight	15
6	-	SC6 - Fuse 6 on fuse holder	10A	-	J667 - Power output module for left headlight	15
7	-	Vacant	-	-
8	-	Vacant	-	-
9	-	Vacant	-	-
10	-	Vacant	-	-
11	-	Vacant	-	-
12	-	SC12 - Fuse 12 on fuse holder	15A	-	J386 - Driver door control unit (without Autolock function) J387 - Front passenger door control unit (without Autolock function) J388 - Rear left door control unit (without Autolock function) J389 - Rear right door control unit (without Autolock function)	30

León	Fitting Locations	No.  802 / 61

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
13	-	SC13 - Fuse 13 on fuse holder	10A	-	- Diagnosis connection (T16/16) E1 - Lighting switch G397 - Rain and light detector sensor	30
14	-	SC14 - Fuse 14 on fuse holder	10A	-	E16- Heater/heat output switch F189 - Tiptronic switch (BVY and BVZ) J104 - ABS control unit with EDL/ESP (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ) J255 - Climatronic control unit J301 - Air conditioning system control unit J446 - Parking aid control unit J587 - Selector lever sensors control unit (AZV, BKD, BMM and BWA)	30
15	-	SC15 - Fuse 15 on fuse holder	7.5A	-	J519 - Onboard power supply control unit (via K/5)	30
16	-	Vacant	-	-
17	-	SC17 - Fuse 17 on fuse holder	5A	-	G273 - Interior monitoring sensor H12 - Alarm horn	30
18	-	Vacant	-	-
19	-	Vacant	-	-
20	-	Vacant	-	-
21	-	SC21-Fuse 21 on fuse holder	10A	-	N276 -Fuel pressure regulating valve (BWA and BWJ)	87
22	-	SC22 - Fuse 22 on fuse holder	40A	-	V2 -Fresh air blower (only Climatronic)	30
23	-	SC23 - Fuse 23 on fuse holder	30A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30

León	Fitting Locations	No.  802 / 62

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
24	-	Vacant	-	-
25	-	SC25-Fuse 25 on fuse holder	25A	-	J519 - Onboard power supply control unit (via K/6)	30
26	-	SC26 - Fuse 26 on fuse holder	30A	-	J388 - Rear left door control unit J389 - Rear right door control unit	30
27	-	SC27 - Fuse 27 on fuse holder	15A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE and BXW) J363 - Current supply relay for Simos control unit (BSE and BSF) J538 - Fuel pump control unit (BVY, BVZ, BWA and BWJ) J643 - Fuel supply relay (BXW) J670 - Motronic current supply relay 2 (BWA and BWJ)	30
28	-	SC28 - Fuse 28 on fuse holder	30A	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
29	-	Vacant	-	-
30	-	SC30 - Fuse 30 on fuse holder	20A	-	F125 - Multifunction switch (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ)	15

León	Fitting Locations	No.  802 / 63

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
31	-	SC31 - Fuse 31 on fuse holder	20A	-	J57- Vacuum pump relay (BVY and BVZ)	15
32	-	Vacant	-	-
33	-	SC33 - Fuse 33 on fuse holder	25A	-	J245 - Sliding sunroof adjustment control unit	30
34	-	SC34 - Fuse 34 on fuse holder	25A	-	J393-Convenience system central control unit (without Autolock function)	30
35	-	Vacant	-	-
36	-	SC36 - Fuse 36 on fuse holder	20A	-	J39 - Headlight washer system relay	30
37	-	SC37 - Fuse 37 on fuse holder	30A	-	J774 -Heated front seats control unit	30
38	-	SC38 - Fuse 38 on fuse holder	10A	-	N75 - Charge pressure control solenoid valve (BWA and BWJ) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BWA and BWJ) N249 - Turbocharger air recirculation valve (BWA and BWJ)	87
39	-	Vacant	-	-
40	-	SC40 - Fuse 40 on fuse holder	40A	-	E16- Heater/heat output switch J301 - Air conditioning system control unit	75
41	-	SC41 - Fuse 41 on fuse holder	20A	-	J519 - Onboard power supply control unit (via J/1) V12 - Rear window wiper motor	75
42	-	SC42 - Fuse 42 on fuse holder	20A	-	U1 - Cigarette lighter U18 - 12 V socket 2, in luggage compartment	75
43	-	SC43 - Fuse 43 on fuse holder	15A	-	J345 - Trailer detector control unit	30

León	Fitting Locations	No.  802 / 64

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
44	-	SC44 - Fuse 44 on fuse holder	20A	-	J345 - Trailer detector control unit	30
45	-	SC45 - Fuse 45 on fuse holder	15A	-	J345 - Trailer detector control unit	30
46	-	Vacant	-	-
47	-	SC47 - Fuse 47 on fuse holder	10A	-	Z19- Lambda probe heater (BWA and BWJ	87
48	-	SC48 - Fuse 48 on fuse holder	10A	-	Z29 -Lambda probe 1 heater after catalytic converter (BWA and BWJ)	87
49	-	Vacant	-	-

León	Fitting Locations	No.  802 / 65

SEAT LEON 2007 Position of fuses, from May 2007

Position of fuses, from May 2007

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder	10A	-	- Diagnosis connection (T16/1) E102 - Headlight range control regulator G70 - Air mass meter (AZV, BKC, BKD, BLS, BMM, BMN, BWA, BWJ, BXE, BXF and BZB) J431 - Headlight range control, control unit J537 - 4HV control unit (BXW) J745 - Cornering light and headlight range control unit N51 - Intake manifold preheating heater element (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE and BXF) N79 - Heater element for crankcase breather (BXW) Z2 -Heated windscreen	15

León	Fitting Locations	No.  802 / 66

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
2	-	SC2 - Fuse 2 on fuse holder	10A	-	E1 - Lighting switch F - Brake light switch F189 - Tiptronic switch (BVY and BVZ) J104- ABS control unit with EDL/ESP J220 - Motronic control unit (BVY, BVZ, BWA and BWJ) J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J317 - Terminal 30 voltage supply relay (BSE and BSF) J345 - Trailer detector control unit J361 - Simos control unit (BSE and BSF) J363 - Current supply relay for Simos control unit (BSE and BSF) J500 - Power steering control unit J533 - Data bus diagnostic interface J538 - Fuel pump control unit (BVY, BVZ, BWA, BWJ and BZB) J587 - Selector lever sensors control unit (AZV, BKD, BMM, BWA) J623 - Engine control unit (BZB) J643 - Fuel supply relay (BXW) J743 - Mechatronic unit for dual clutch gearbox (AZV, BKD, BMM, BWA) K - Dash panel insert V48 - Left headlight range control motor V49 - Right headlight range control motor	15
3	-	SC3 - Fuse 3 on fuse holder	5A	-	J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp	15

León	Fitting Locations	No.  802 / 67

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
4	-	SC4 - Fuse 4 on fuse holder	5A	-	E16- Heater/heat output switch E226 - Tyre pressure monitor button E256 - TCS and ESP button F4 - Reversing light switch G65 - High-pressure sender J255 - Climatronic control unit J301 - Air conditioning system control unit R94 - Navigation system interface (Tom-Tom Navigator) Y7 - Automatic anti-dazzle interior mirror Z20 - Left washer jet heater element Z21 - Right washer jet heater element	15
5	-	SC5 - Fuse 5 on fuse holder	10A	-	J668 - Power output module for right headlight	15
6	-	SC6 - Fuse 6 on fuse holder	10A	-	J667 - Power output module for left headlight	15
7	-	Vacant	-	-
8	-	Vacant	-	-
9	-	Vacant	-	-
10	-	Vacant	-	-
11	-	Vacant	-	-
12	-	SC12 - Fuse 12 on fuse holder	15A	-	J386 - Driver door control unit (without Autolock function) J387 - Front passenger door control unit (without Autolock function) J388 - Rear left door control unit (without Autolock function) J389 - Rear right door control unit (without Autolock function)	30

León	Fitting Locations	No.  802 / 68

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
13	-	SC13 - Fuse 13 on fuse holder	10A	-	- Diagnosis connection (T16/16) E1 - Lighting switch G397 - Rain and light detector sensor	30
14	-	SC14 - Fuse 14 on fuse holder	10A	-	E16- Heater/heat output switch F189 - Tiptronic switch (BVY and BVZ) J104 - ABS control unit with EDL/ESP (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ) J255 - Climatronic control unit J301 - Air conditioning system control unit J446 - Parking aid control unit J587 - Selector lever sensors control unit (AZV, BKD, BMM and BWA)	30
15	-	SC15 - Fuse 15 on fuse holder	7.5A	-	J519 - Onboard power supply control unit (via K/5)	30
16	-	Vacant	-	-
17	-	SC17 - Fuse 17 on fuse holder	5A	-	G273 - Interior monitoring sensor H12 - Alarm horn	30
18	-	Vacant	-	-
19	-	Vacant	-	-
20	-	Vacant	-	-
21	-	SC21-Fuse 21 on fuse holder	10A	-	N276 -Fuel pressure regulating valve (BWA and BWJ)	87
22	-	SC22 - Fuse 22 on fuse holder	40A	-	V2 -Fresh air blower (only Climatronic)	30
23	-	SC23 - Fuse 23 on fuse holder	30A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30

León	Fitting Locations	No.  802 / 69

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
24	-	Vacant	-	-
25	-	SC25-Fuse 25 on fuse holder	25A	-	J519 - Onboard power supply control unit (via K/6)	30
26	-	SC26 - Fuse 26 on fuse holder	30A	-	J388 - Rear left door control unit J389 - Rear right door control unit	30
27	-	SC27 - Fuse 27 on fuse holder	15A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE, BXF and BXW) J363 - Current supply relay for Simos control unit (BSE and BSF) J538 - Fuel pump control unit (BVY, BVZ, BWA, BWJ and BZB) J643 - Fuel supply relay (BXW) J670 - Motronic current supply relay 2 (BWA and BWJ)	30
28	-	SC28 - Fuse 28 on fuse holder	30A	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
29	-	Vacant	-	-
30	-	SC30 - Fuse 30 on fuse holder	20A	-	F125 - Multifunction switch (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ)	15

León	Fitting Locations	No.  802 / 70

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
31	-	SC31 - Fuse 31 on fuse holder	20A	-	J57- Vacuum pump relay (BVY and BVZ)	15
32	-	Vacant	-	-
33	-	SC33 - Fuse 33 on fuse holder	25A	-	J245 - Sliding sunroof adjustment control unit	30
34	-	SC34 - Fuse 34 on fuse holder	25A	-	J393-Convenience system central control unit (without Autolock function)	30
35	-	Vacant	-	-
36	-	SC36 - Fuse 36 on fuse holder	20A	-	J39 - Headlight washer system relay	30
37	-	SC37 - Fuse 37 on fuse holder	30A	-	J774 -Heated front seats control unit	30
38	-	SC38 - Fuse 38 on fuse holder	10A	-	N75 - Charge pressure control solenoid valve (BWA and BWJ) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BWA and BWJ) N249 - Turbocharger air recirculation valve (BWA and BWJ)	87
39	-	Vacant	-	-
40	-	SC40 - Fuse 40 on fuse holder	40A	-	E16- Heater/heat output switch J301 - Air conditioning system control unit	75
41	-	SC41 - Fuse 41 on fuse holder	20A	-	J519 - Onboard power supply control unit (via J/1) V12 - Rear window wiper motor	75
42	-	SC42 - Fuse 42 on fuse holder	20A	-	U1 - Cigarette lighter U18 - 12 V socket 2, in luggage compartment	75
43	-	SC43 - Fuse 43 on fuse holder	15A	-	J345 - Trailer detector control unit	30

León	Fitting Locations	No.  802 / 71

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
44	-	SC44 - Fuse 44 on fuse holder	20A	-	J345 - Trailer detector control unit	30
45	-	SC45 - Fuse 45 on fuse holder	15A	-	J345 - Trailer detector control unit	30
46	-	Vacant	-	-
47	-	SC47 - Fuse 47 on fuse holder	10A	-	Z19- Lambda probe heater (BWA and BWJ	87
48	-	SC48 - Fuse 48 on fuse holder	10A	-	Z29 -Lambda probe 1 heater after catalytic converter (BWA and BWJ)	87
49	-	Vacant	-	-

León	Fitting Locations	No.  802 / 72

SEAT LEON 2007 Position of fuses, from November 2007

Position of fuses, from November 2007

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder	10A	-	- Diagnosis connection (T16/1) E102 - Headlight range control regulator G70 - Air mass meter (AZV, BKC, BKD, BLS, BMM, BMN, BWA, BWJ, BXE, BXF and BZB) J431 - Headlight range control, control unit J537 - 4HV control unit (BXW) J745 - Cornering light and headlight range control unit N51 - Intake manifold preheating heater element (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE, BXF and CCSA) N79 - Heater element for crankcase breather (BXW) Z2 -Heated windscreen	15

León	Fitting Locations	No.  802 / 73

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
2	-	SC2 - Fuse 2 on fuse holder	10A	-	E1 - Lighting switch F - Brake light switch F189 - Tiptronic switch (BVY and BVZ) J104- ABS control unit with EDL/ESP J220 - Motronic control unit (BVY, BVZ, BWA and BWJ) J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J317 - Terminal 30 voltage supply relay (BSE, BSF and CCSA) J345 - Trailer detector control unit J361 - Simos control unit (BSE, BSF and CCSA) J363 - Current supply relay for Simos control unit (BSE, BSF and CCSA) J500 - Power steering control unit J533 - Data bus diagnostic interface J538 - Fuel pump control unit (BVY, BVZ, BWA, BWJ, BZB and CAXC) J587 - Selector lever sensors control unit (AZV, BKD, BLS, BMM and BWA) J623 - Engine control unit (BZB and CAXC) J643 - Fuel supply relay (BXW) J743 - Mechatronic unit for dual clutch gearbox (AZV, BKD, BLS, BMM and BWA) K - Dash panel insert V48 - Left headlight range control motor V49 - Right headlight range control motor	15
3	-	SC3 - Fuse 3 on fuse holder	5A	-	J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp	15

León	Fitting Locations	No.  802 / 74

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
4	-	SC4 - Fuse 4 on fuse holder	5A	-	E16- Heater/heat output switch E226 - Tyre pressure monitor button E256 - TCS and ESP button F4 - Reversing light switch G65 - High-pressure sender G266 - Oil level and oil temperature sender (CAXC) J255 - Climatronic control unit J301 - Air conditioning system control unit R94 - Navigation system interface (Tom-Tom Navigator) Y7 - Automatic anti-dazzle interior mirror Z20 - Left washer jet heater element Z21 - Right washer jet heater element	15
5	-	SC5 - Fuse 5 on fuse holder	10A	-	J668 - Power output module for right headlight	15
6	-	SC6 - Fuse 6 on fuse holder	10A	-	J667 - Power output module for left headlight	15
7	-	Vacant	-	-
8	-	Vacant	-	-
9	-	Vacant	-	-
10	-	Vacant	-	-
11	-	Vacant	-	-
12	-	SC12 - Fuse 12 on fuse holder	15A	-	J386 - Driver door control unit (without Autolock function) J387 - Front passenger door control unit (without Autolock function) J388 - Rear left door control unit (without Autolock function) J389 - Rear right door control unit (without Autolock function)	30

León	Fitting Locations	No.  802 / 75

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
13	-	SC13 - Fuse 13 on fuse holder	10A	-	- Diagnosis connection (T16/16) E1 - Lighting switch G397 - Rain and light detector sensor	30
14	-	SC14 - Fuse 14 on fuse holder	10A	-	E16- Heater/heat output switch F189 - Tiptronic switch (BVY and BVZ) J104 - ABS control unit with EDL/ESP (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ) J255 - Climatronic control unit J301 - Air conditioning system control unit J446 - Parking aid control unit J587 - Selector lever sensors control unit (AZV, BKD, BLS, BMM and BWA)	30
15	-	SC15 - Fuse 15 on fuse holder	7.5A	-	J519 - Onboard power supply control unit (via K/5)	30
16	-	Vacant	-	-
17	-	SC17 - Fuse 17 on fuse holder	5A	-	G273 - Interior monitoring sensor H12 - Alarm horn	30
18	-	Vacant	-	-
19	-	Vacant	-	-
20	-	Vacant	-	-
21	-	SC21-Fuse 21 on fuse holder	10A	-	N276 -Fuel pressure regulating valve (BWA and BWJ)	87
22	-	SC22 - Fuse 22 on fuse holder	40A	-	V2 -Fresh air blower (only Climatronic)	30
23	-	SC23 - Fuse 23 on fuse holder	30A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30

León	Fitting Locations	No.  802 / 76

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
24	-	Vacant	-	-
25	-	SC25-Fuse 25 on fuse holder	25A	-	J519 - Onboard power supply control unit (via K/6)	30
26	-	SC26 - Fuse 26 on fuse holder	30A	-	J388 - Rear left door control unit J389 - Rear right door control unit	30
27	-	SC27 - Fuse 27 on fuse holder	15A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE, BXF, BXW and CCSA) J363 - Current supply relay for Simos control unit (BSE, BSF and CCSA) J538 - Fuel pump control unit (BVY, BVZ, BWA, BWJ, BZB and CAXC) J643 - Fuel supply relay (BXW) J670 - Motronic current supply relay 2 (BWA and BWJ)	30
28	-	SC28 - Fuse 28 on fuse holder	30A	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
29	-	Vacant	-	-
30	-	SC30 - Fuse 30 on fuse holder	20A	-	F125 - Multifunction switch (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ)	15

León	Fitting Locations	No.  802 / 77

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
31	-	SC31 - Fuse 31 on fuse holder	20A	-	J57- Vacuum pump relay (BVY and BVZ)	15
32	-	Vacant	-	-
33	-	SC33 - Fuse 33 on fuse holder	25A	-	J245 - Sliding sunroof adjustment control unit	30
34	-	SC34 - Fuse 34 on fuse holder	25A	-	J393-Convenience system central control unit (without Autolock function)	30
35	-	Vacant	-	-
36	-	SC36 - Fuse 36 on fuse holder	20A	-	J39 - Headlight washer system relay	30
37	-	SC37 - Fuse 37 on fuse holder	30A	-	J774 -Heated front seats control unit	30
38	-	SC38 - Fuse 38 on fuse holder	10A	-	N75 - Charge pressure control solenoid valve (BWA and BWJ) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BWA and BWJ) N249 - Turbocharger air recirculation valve (BWA and BWJ)	87
39	-	Vacant	-	-
40	-	SC40 - Fuse 40 on fuse holder	40A	-	E16- Heater/heat output switch J301 - Air conditioning system control unit	75
41	-	SC41 - Fuse 41 on fuse holder	20A	-	J519 - Onboard power supply control unit (via J/1) V12 - Rear window wiper motor	75
42	-	SC42 - Fuse 42 on fuse holder	20A	-	U1 - Cigarette lighter U18 - 12 V socket 2, in luggage compartment	75
43	-	SC43 - Fuse 43 on fuse holder	15A	-	J345 - Trailer detector control unit	30

León	Fitting Locations	No.  802 / 78

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
44	-	SC44 - Fuse 44 on fuse holder	20A	-	J345 - Trailer detector control unit	30
45	-	SC45 - Fuse 45 on fuse holder	15A	-	J345 - Trailer detector control unit	30
46	-	Vacant	-	-
47	-	SC47 - Fuse 47 on fuse holder	10A	-	Z19- Lambda probe heater (BWA and BWJ	87
48	-	SC48 - Fuse 48 on fuse holder	10A	-	Z29 -Lambda probe 1 heater after catalytic converter (BWA and BWJ)	87
49	-	Vacant	-	-

León	Fitting Locations	No.  802 / 79

SEAT LEON 2007 Position of fuses, from May 2008

Position of fuses, from May 2008

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder	10A	-	- Diagnosis connection (T16/1) E102 - Headlight range control regulator G70 - Air mass meter (AZV, BKC, BKD, BLS, BMM, BMN, BWA, BWJ, BXE, BXF and BZB) J537 - 4HV control unit (BXW) J745 - Cornering light and headlight range control unit N51 - Intake manifold preheating heater element (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE, BXF and CCSA) N79 - Heater element for crankcase breather (BXW) Z2 -Heated windscreen	15

León	Fitting Locations	No.  802 / 80

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
2	-	SC2 - Fuse 2 on fuse holder	10A	-	E1 - Lighting switch F - Brake light switch F189 - Tiptronic switch (BVY and BVZ) J104- ABS control unit with EDL/ESP J220 - Motronic control unit (BVY, BVZ, BWA and BWJ) J248 - Diesel direct injection system control unit (AZV, BKC, BKD, BLS, BMM, BMN, BXE and BXF) J317 - Terminal 30 voltage supply relay (BSE, BSF and CCSA) J345 - Trailer detector control unit J361 - Simos control unit (BSE, BSF and CCSA) J363 - Current supply relay for Simos control unit (BSE, BSF and CCSA) J446 - Parking aid control unit J500 - Power steering control unit J533 - Data bus diagnostic interface J538 - Fuel pump control unit (BVY, BVZ, BWA, BWJ, BZB and CAXC) J587 - Selector lever sensors control unit (AZV, BKD, BLS, BMM and BWA) J623 - Engine control unit (BZB and CAXC) J643 - Fuel supply relay (BXW) J743 - Mechatronic unit for dual clutch gearbox (AZV, BKD, BLS, BMM and BWA) K - Dash panel insert V48 - Left headlight range control motor V49 - Right headlight range control motor	15
3	-	SC3 - Fuse 3 on fuse holder	5A	-	J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp	15

León	Fitting Locations	No.  802 / 81

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
4	-	SC4 - Fuse 4 on fuse holder	5A	-	E16- Heater/heat output switch E226 - Tyre pressure monitor button E256 - TCS and ESP button F4 - Reversing light switch G65 - High-pressure sender G266 - Oil level and oil temperature sender (CAXC) J255 - Climatronic control unit J301 - Air conditioning system control unit R94 - Navigation system interface (Tom-Tom Navigator) Y7 - Automatic anti-dazzle interior mirror Z20 - Left washer jet heater element Z21 - Right washer jet heater element	15
5	-	SC5 - Fuse 5 on fuse holder	10A	-	J668 - Power output module for right headlight	15
6	-	SC6 - Fuse 6 on fuse holder	10A	-	J667 - Power output module for left headlight	15
7	-	Vacant	-	-
8	-	Vacant	-	-
9	-	Vacant	-	-
10	-	Vacant	-	-
11	-	Vacant	-	-
12	-	SC12 - Fuse 12 on fuse holder	15A	-	J386 - Driver door control unit (without Autolock function) J387 - Front passenger door control unit (without Autolock function) J388 - Rear left door control unit (without Autolock function) J389 - Rear right door control unit (without Autolock function)	30

León	Fitting Locations	No.  802 / 82

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
13	-	SC13 - Fuse 13 on fuse holder	10A	-	- Diagnosis connection (T16/16) E1 - Lighting switch G397 - Rain and light detector sensor	30
14	-	SC14 - Fuse 14 on fuse holder	10A	-	E16- Heater/heat output switch F189 - Tiptronic switch (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ) J255 - Climatronic control unit J301 - Air conditioning system control unit J587 - Selector lever sensors control unit (AZV, BKD, BLS, BMM and BWA)	30
15	-	SC15 - Fuse 15 on fuse holder	7.5A	-	J519 - Onboard power supply control unit (via K/5)	30
16	-	Vacant	-	-
17	-	SC17 - Fuse 17 on fuse holder	5A	-	G273 - Interior monitoring sensor H12 - Alarm horn	30
18	-	Vacant	-	-
19	-	Vacant	-	-
20	-	Vacant	-	-
21	-	SC21-Fuse 21 on fuse holder	10A	-	N276 -Fuel pressure regulating valve (BWA and BWJ)	87
22	-	SC22 - Fuse 22 on fuse holder	40A	-	V2 -Fresh air blower (only Climatronic)	30
23	-	SC23 - Fuse 23 on fuse holder	30A	-	J386 - Driver door control unit J387 - Front passenger side door control unit	30

León	Fitting Locations	No.  802 / 83

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
24	-	Vacant	-	-
25	-	SC25-Fuse 25 on fuse holder	25A	-	J519 - Onboard power supply control unit (via K/6)	30
26	-	SC26 - Fuse 26 on fuse holder	30A	-	J388 - Rear left door control unit J389 - Rear right door control unit	30
27	-	SC27 - Fuse 27 on fuse holder	15A	-	J17 - Fuel pump relay (AZV, BKC, BKD, BLS, BMM, BMN, BSE, BSF, BXE, BXF, BXW and CCSA) J363 - Current supply relay for Simos control unit (BSE, BSF and CCSA) J538 - Fuel pump control unit (BVY, BVZ, BWA, BWJ, BZB and CAXC) J643 - Fuel supply relay (BXW) J670 - Motronic current supply relay 2 (BWA and BWJ)	30
28	-	SC28 - Fuse 28 on fuse holder	30A	-	J386 - Driver door control unit (with Autolock function) J387 - Front passenger door control unit (with Autolock function) J388 - Rear left door control unit (with Autolock function) J389 - Rear right door control unit (with Autolock function) J393 - Convenience system central control unit (with Autolock function)	30
29	-	Vacant	-	-
30	-	SC30 - Fuse 30 on fuse holder	20A	-	F125 - Multifunction switch (BVY and BVZ) J217- Automatic gearbox control unit (BVY and BVZ)	15

León	Fitting Locations	No.  802 / 84

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
31	-	SC31 - Fuse 31 on fuse holder	20A	-	J57- Vacuum pump relay (BVY and BVZ)	15
32	-	Vacant	-	-
33	-	SC33 - Fuse 33 on fuse holder	25A	-	J245 - Sliding sunroof adjustment control unit	30
34	-	SC34 - Fuse 34 on fuse holder	25A	-	J393-Convenience system central control unit (without Autolock function)	30
35	-	Vacant	-	-
36	-	SC36 - Fuse 36 on fuse holder	20A	-	J39 - Headlight washer system relay	30
37	-	SC37 - Fuse 37 on fuse holder	30A	-	J774 -Heated front seats control unit	30
38	-	SC38 - Fuse 38 on fuse holder	10A	-	N75 - Charge pressure control solenoid valve (BWA and BWJ) N80 - Activated charcoal filter system solenoid valve 1 (pulsed) (BWA and BWJ) N249 - Turbocharger air recirculation valve (BWA and BWJ)	87
39	-	Vacant	-	-
40	-	SC40 - Fuse 40 on fuse holder	40A	-	E16- Heater/heat output switch J301 - Air conditioning system control unit	75
41	-	SC41 - Fuse 41 on fuse holder	20A	-	J519 - Onboard power supply control unit (via J/1) V12 - Rear window wiper motor	75
42	-	SC42 - Fuse 42 on fuse holder	20A	-	U1 - Cigarette lighter U18 - 12 V socket 2, in luggage compartment	75
43	-	SC43 - Fuse 43 on fuse holder	15A	-	J345 - Trailer detector control unit	30

León	Fitting Locations	No.  802 / 85

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
44	-	SC44 - Fuse 44 on fuse holder	20A	-	J345 - Trailer detector control unit	30
45	-	SC45 - Fuse 45 on fuse holder	15A	-	J345 - Trailer detector control unit	30
46	-	Vacant	-	-
47	-	SC47 - Fuse 47 on fuse holder	10A	-	Z19- Lambda probe heater (BWA and BWJ	87
48	-	SC48 - Fuse 48 on fuse holder	10A	-	Z29 -Lambda probe 1 heater after catalytic converter (BWA and BWJ)	87
49	-	Vacant	-	-

SEAT LEON 2007 Overview of earth points in engine compartment

Overview of earth points in engine compartment    

1 -	Earth point, on right in engine compartment -13-

q	Location → page 801/4

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

q	Location → page 801/4

3 -	Earth strap, battery body, on left in engine compartment, next to battery -1-

q	Location → page 801/5

4 -	Earth point 2, on front of left longitudinal member -672-

q	from April 2005:

q	Location → page 801/5

q	from November 2005:

q	Location → page 801/6

León	Fitting Locations	No.  801 / 2

5 -	Earth point 3, on front of left longitudinal member -673-

q	from April 2005:

q	Location → page 801/5

q	from November 2005:

q	Location → page 801/6

6 -	Earth point 1, on front of left longitudinal member -671-

q	from April 2005:

q	Location → page 801/5

q	from November 2005:

q	Location → page 801/6

7 -	Earth strap, engine - body -3-

q	from April 2005:

q	Location → page 801/5

q	from November 2005:

q	Location → page 801/6

León	Fitting Locations	No.  801 / 3

8 -	Earth point, on engine block -18-

q	only models with engine codes BLR, BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC:

q	Location → page 801/6

León	Fitting Locations	No.  801 / 4

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

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

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León	Fitting Locations	No.  801 / 5

1 Earth strap, battery body, on left in engine compartment, next to battery -arrow-

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From April 2005   671 Earth point 1, on front left longitudinal member -arrow A-   673 Earth point 3, on front left longitudinal member -arrow B-   672 Earth point 2, on front left longitudinal member -arrow C-   3 Earth strap, engine - body -arrow D-

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León	Fitting Locations	No.  801 / 6

from November 2005   671 Earth point 1, on front left longitudinal member -arrow A-   672 Earth point 2, on front left longitudinal member -arrow B-   673 Earth point 3, on front left longitudinal member -arrow C-   3 Earth strap, engine - body -arrow C-

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Only models with engine codes BLR, BVY, BVZ, BWA, BWJ, BXW, BZB and CAXC   18 Earth point on engine block -arrow-

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León	Fitting Locations	No.  801 / 7

SEAT LEON 2007 Overview of earth points in vehicle interior

Overview of earth points in vehicle interior

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

q	Location → page 801/9

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

q	from April 2005:

q	Location → page 801/9

q	from May 2005:

q	Location → page 801/10

3 -	Earth point, in front right footwell -47-

q	from April 2005:

q	Location → page 801/9

q	from May 2005:

q	Location → page 801/10

4 -	Earth point 2, on lower part of right A-pillar -617-

q	from April 2005:

q	Location → page 801/9

León	Fitting Locations	No.  801 / 8

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

q	Location → page 801/10

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

q	Location → page 801/11

7 -	Earth point, in front left footwell -602-

q	Location → page 801/11

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

q	Location → page 801/11

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

q	from May 2007:

q	Location → page 801/12

León	Fitting Locations	No.  801 / 9

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

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From April 2005   43 Earth point, lower part of right A-pillar -arrow A-   47 Earth point, in front right footwell -arrow B-   617 Earth point 2, lower part of right A-pillar -arrow C-

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León	Fitting Locations	No.  801 / 10

from May 2006   43 Earth point, lower part of right A-pillar -arrow A-   47 Earth point, in front right footwell -arrow B-

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

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León	Fitting Locations	No.  801 / 11

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

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44 Earth point, lower part of left A-pillar -arrow A-   602 Earth point, in front left footwell -arrow B-

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León	Fitting Locations	No.  801 / 12

from May 2007:   605 Earth point, on top end of steering column -arrow-

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León	Fitting Locations	No.  801 / 13

SEAT LEON 2007 Overview of earth points in luggage compartment and in roof

Overview of earth points in luggage compartment and in roof

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

q	Location → page 801/14

2 -	Earth point, on rear right of roof -666-

q	Location → page 801/14

3 -	Earth point, on rear left of roof -667-

q	Location → page 801/15

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

q	Location → page 801/15

León	Fitting Locations	No.  801 / 14

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

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666 Earth point, on rear right of roof -arrow-

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León	Fitting Locations	No.  801 / 15

667 Earth point, on rear left of roof -arrow-

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

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