SEAT LEON 2002 — Automatic gearbox (AG4), 1.6 l/92 kW Motronic, engine codes APG . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT LEON 2002 - Starter inhibitor and reversing light relay

B	Starter
D	Ignition/starter switch
F4	Reversing light switch
J220	Motronic control unit
J226	Starter inhibitor and reversing light relay
S15	Fuse in fuse box/relay plate
T6l	6-pin connector, brown, in protective housing for connectors, in plenum chamber, left
T9	9-pin connector
T10	10-pin connector, orange, in protective housing for connectors, in plenum chamber, left
T10g	10-pin connector, grey, in protective housing for connectors, in plenum chamber, left
T121	121-pin connector
10	Earth point, in plenum chamber
114	Earth connection, in automatic gearbox wiring harness
501	Screw connection -2- (30), on relay plate
A32	Positive (+) connection (30), in dash panel wiring harness
A52	Positive (+) connection -2- (30), in dash panel wiring harness
A87	Connection (RF (reversing light)), in dash panel wiring harness

Wiring Diagram SEAT LEON 2002 - Automatic gearbox control unit - multi-function switch

F125	Multi-function switch
J217	Automatic gearbox control unit
J220	Motronic control unit
J255	Climatronic control unit
J285	Control unit with warning lamps on instrument panel
J293	Radiator fan control unit
Y6	Selector lever position indicator
T8p	8-way connector
T10	10-way connector, orange, in the connector's protective casing, plenum chamber, left
T10g	10-way connector, grey, in the connector's protective casing, plenum chamber, left
T10n	10-way connector, instrument panel
T14	14-way connector
T16	16 -way connector, self-diagnosis
T16b	16-way connector
T32	32-way connector, blue, instrument panel
T68	68-way connector
T121	121-way connector
A52	Positive connection -2- (30), instrument panel wiring harness
A76	Connection (diagnosis cable K), instrument panel wiring harness

Wiring Diagram SEAT LEON 2002 - Automatic gearbox control unit - gearbox speed sender - gearbox oil temperature sender - electro-valve 1 - electro-valve 2

G38	Gearbox speed sender
G93	Gearbox oil temperature sender
J104	Control unit for ABS with EDS
J217	Automatic gearbox control unit
J220	Motronic control unit
N88	Electro-valve 1
N89	Electro-valve 2
N90	Electro-valve 3
N91	Electro-valve 4
N92	Electro-valve 5
N93	Electro-valve 6
N94	Electro-valve 7
T2x	2-way connector
T10d	10-way connector, green, in the connector's protective casing, plenum chamber, left
T12f	12-way connector
T25	25-way connector
T47	47-way connector
T68	68-way connector
T121	121-way connector

Wiring Diagram SEAT LEON 2002 - Automatic gearbox control unit - vehicle speed sender - selector lever position P/N warning lamp - selector lever display illumination

E204	Tank filler flap remote release switch
F	Brake light switch
G68	Vehicle speed sender
J217	Automatic gearbox control unit
J285	Control unit with display in dash panel insert
J492	Four-wheel drive control unit
K142	Selector lever position P/N warning lamp
L101	Selector lever display illumination
N110	Selector lever lock solenoid
S7	Fuse in fuse box/relay plate
S11	Fuse in fuse box/relay plate
S231	Fuse in fuse box
T3g	3-pin connector, on gearbox
T10g	10-pin connector, grey, in protective housing for connectors, in plenum chamber, left
T68	68-pin connector
135	Earth connection -2-, in dash panel wiring harness
A2	Positive (+) connection (15), in dash panel wiring harness
A4	Positive (+) connection (58b), in dash panel wiring harness
B163	Positive (+) connection -1- (15), in interior wiring harness
B165	Positive (+) connection -2- (15), in interior wiring harness
U8	Positive (+) connection (15a), in automatic gearbox wiring harness
W1	Positive (+) connection -1- (54), in rear wiring harness
*	Only models allroad

SEAT LEON 2002 Overview of coupling station and connections for wiring harness

Overview of coupling station and connections for wiring harness    

1 -	Coupling station in protective housing, in plenum chamber

q	With connectors -T10g-, -T10d-, -T10e-, -T10-, -T6l-, -T10h-, -T10v-

q	Location → page 803/2

2 -	Coupling station, right B-pillar

q	With connector -T10m-

q	Location → page 803/4

3 -	Coupling station on left of C-pillar

q	Location → page 803/4

4 -	Coupling station on left of A-pillar

q	With connector -T10i-

q	Location → page 803/5

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

q	Location → page 803/5

Toledo/León	Fitting Locations	No.  803 / 2

Coupling station in protective housing, in plenum chamber

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

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

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

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

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

Toledo/León	Fitting Locations	No.  803 / 3

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

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

Toledo/León	Fitting Locations	No.  803 / 4

SEAT LEON 2002 Coupling station, right B-pillar Coupling station, right B-pillar 1 -  10-pin connector -T10m-, black, signal loudspeakers, central locking, rear electric window regulator, rear door warning lamp The wiring on the B-pillar, left, is installed vice versa.

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

SEAT LEON 2002 Coupling station on left of C-pillar Coupling station on left of C-pillar See connectors in fitting locations: Multi-pin connections. 1 -  Earth connection 2 -  Rear fog light, number plate light, reversing lights black 3 -  Rear window wiper and washer system (only for Leon) pink 4 -  Central locking brown

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  803 / 5

SEAT LEON 2002 Coupling station on left of A-pillar Coupling station on left of A-pillar 1 -  10-pin connector -T10i-, black, central locking, electric mirror adjustment, radio with muting / electric windows The wiring on the A-pillar, right, is installed vice versa.

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

SEAT LEON 2002 Coupling station in engine compartment, in left wiring harness Coupling station in engine compartment, in left wiring harness See connectors in fitting locations: Multi-pin connections.

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

SEAT LEON 2002 Overview of earth points in engine compartment

Overview of earth points in engine compartment    

1 -	Earth point, in centre of plenum chamber -608-

q	Location → page 801/2

2 -	Earth point, in plenum chamber -10-

q	Location → page 801/2

3 -	Earth point, on right in plenum chamber -609-

q	Location → page 801/3

4 -	Earth strap, battery - body -1-

q	Location → page 801/3

5 -	Earth points, in left engine compartment -12-

q	Location → page 801/4

6 -	Earth strap, gearbox - body -2-

q	Location → page 801/4

Toledo/León	Fitting Locations	No.  801 / 2

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

10 Earth point, in plenum chamber ⇒ -arrow-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 3

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

1 Earth strap, battery - body ⇒ Arrow A

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 4

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

2 Earth strap, gearbox - body ⇒ -arrow-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 5

Overview of earth points in vehicle interior

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

q	Location → page 801/7

2 -	Earth point, right B-pillar -78-

q	Location → page 801/7

3 -	Earth point, left B-pillar -77-

q	Location → page 801/8

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

q	Location → page 801/8

5 -	Earth point, on right behind dash panel -42-

q	Location → page 801/9

6 -	Earth point, on right behind dash panel -33-

q	Location → page 801/9

Toledo/León	Fitting Locations	No.  801 / 6

7 -	Earth point, on left behind dash panel insert -32-

q	Location → page 801/10

8 -	Earth point, behind dash panel -45-

q	Location → page 801/10

Toledo/León	Fitting Locations	No.  801 / 7

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 8

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 9

33 Earth point behind dash panel on right ⇒ -arrow-   42 Same earth point as ⇒ -arrow-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 10

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

45 Earth point, behind dash panel

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 11

SEAT LEON 2002 Overview of earth points in luggage compartment (Toledo)

Overview of earth points in luggage compartment (Toledo)

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

q	Location → page 801/12

Toledo/León	Fitting Locations	No.  801 / 12

50 Earth point, on left in luggage compartment

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  801 / 13

SEAT LEON 2002 Overview of earth points in luggage compartment (León)

Overview of earth points in luggage compartment (León)

1 -	Earth point, left rear pillar -57-

q	Location → page 801/14

Toledo/León	Fitting Locations	No.  801 / 14

57 Earth point, left rear pillar

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

SEAT LEON 2002 Overview of fuses

Overview of fuses    

1 -	Fuse in fuse holder left dash panel

q	Location → page 802/2

q	Position of fuses → page 802/3

2 -	Auxiliary fuse above additional relay carrier -S37-, -S45-, -S323-, -S111-, -S144-

q	Location → page 802/7

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

q	Location, up to August 2000: → Page 802/8

q	Location, from September 2000: → Page 802/9

Toledo/León	Fitting Locations	No.  802 / 2

Fuse in fuse holder, dash panel Fuse colours 30 A -  green 25 A -  white 20 A -  yellow 15 A -  blue 10 A -  red 7,5 A -  brown 5 A -  beige 3 A -  purple The fuse electrical connections are shown in the respective current flow diagrams. The fuses for options not mentioned are also shown in the respective Current flow diagrams. Fuses from S 24 are designated with an additional characteristic o. distinctive feature "2" in the Current Flow Diagram, for example: S 40 is designated as S 240.

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  802 / 3

SEAT LEON 2002 Position of fuses in fuse holder, left dash panel

Position of fuses in fuse holder, left dash panel

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

Toledo/León	Fitting Locations	No.  802 / 4

SEAT LEON 2002 Position of fuses in fuse holder, left dash panel

Position of fuses in fuse holder, left dash panel

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
17	-	-S17-	10A	-	Vacant (applicable up to October 2001) Taxi (applicable from November 2001)
18	-	-S18-	10A	-	Right headlight main beam
19	-	-S19-	10A	-	Left main beam
20	-	-S20-	15A	-	Right dipped beam
21	-	-S21-	15A	-	Left dipped beam
22	-	-S22-	5A	-	Side light right
23	-	-S23-	5A	-	Side light left
24	-	-S224-	20A	-	Windscreen wiper, washer pump
25	-	-S225-	25A	-	Heater blower
26	-	-S226-	25A	-	Heated rear window
27	-	-S227-	15A	-	Rear window wiper
28	-	-S228-	15A	-	Fuel pump
29	-	-S229-	10A	-	Diesel engine control unit
			15A	-	applicable up to October 2001: Petrol engine control unit
			15A	-	applicable from November 2001: Petrol engine control unit, not for AQN, AUE and BDE
			20A	-	applicable from November 2001: Engine control units AQN, AUE and BDE

Toledo/León	Fitting Locations	No.  802 / 5

Position of fuses in fuse holder, left dash panel

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
30	-	-S230-	20A	-	Electrical sunroof
31	-	-S231-	20A	-	Automatic gearbox - AG4
			5A	-	Haldex
32	-	-S232-	10A	-	Injectors (petrol)
			30A	-	Diesel engine control unit
33	-	-S233-	20A	-	Headlight washer system (HWS)
34	-	-S234-	10A	-	Diesel engine control unit
			10A	-	Petrol engine control unit
35	-	-S235-	30A	-	Caravan tow coupling delay, luggage compartment power socket
36	-	-S236-	15A	-	Rear fog lights
37	-	-S237-	10A	-	applicable up to October 2001: Signal S (ignition key)
			5A	-	applicable from November 2001: Diesel engine control unit
			20A	-	applicable from November 2001: Petrol engine control unit, not for AUE and BDE
			30A	-	applicable from November 2001: Engine control units AUE and BDE
38	-	-S238-	10A	-	Luggage compartment light, central locking
39	-	-S239-	15A	-	Hazard warning lights system

Toledo/León	Fitting Locations	No.  802 / 6

Position of fuses in fuse holder, left dash panel

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
40	-	-S240-	20A	-	Horns
41	-	-S241-	15A	-	Cigarette lighter
42	-	-S242-	15A	-	Radio
43	-	-S243-	10A	-	Petrol engine control unit
			10A	-	Diesel engine control unit
44	-	-S244-	15A	-	Seat heater

Toledo/León	Fitting Locations	No.  802 / 7

Auxiliary fuse above additional relay carrier Right-handdrive vehicles A -  Seat adjustment fuse -S45- (30 A) B -  Vacuum pump fuse (20 A) C -  Window regulator fuse -S37- (30 A) D -  Fuel charging hole fuse -S323- (10 A) E -  Alarm horn fuse -S111- (15 A)  -  Turn signal fuse -S144- (15 A) F -  Taxi fuse (15 A) G -  Vacant H -  Vacant

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Left-handdrive vehicles: A -  Seat adjustment fuse -S45- (30 A) B -  Vacuum pump fuse (20 A) C -  Window regulator fuse -S37- (30 A) D -  Vacant E -  Taxi fuse (15 A) F -  Alarm horn fuse 1 -S111- (15 A)  -  Turn signal fuse -S144- (15 A) G -  Fuel charging hole fuse -S323- (10 A) H -  Vacant

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  802 / 8

SEAT LEON 2002 Fuse on fuse holder, next to battery (up to August 2000): Fuse on fuse holder, next to battery (up to August 2000): Fuses: S162 -  Glow plug heater 50 A S163 -  Engine control unit 50 A S164 -  Radiator fan 40 A S176 -  Passenger compartment, 110A S177 -  Alternator (90 A), 110 A  -  Alternator (120 A), 150 A S178 -  ABS (pump), 30 A S179 -  ABS, 30 A S180 -  Radiator fan 30 A

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Toledo/León	Fitting Locations	No.  802 / 9

SEAT LEON 2002 Fuse on fuse holder, next to battery (from September 2000): Fuse on fuse holder, next to battery (from September 2000): A -  Red wire, 16mm²

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля