SEAT LEON 2004 — Cruise control system (CCS), 1.9 l/96 kW turbo-diesel engine, engine codes ASZ . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT LEON 2004 - Diesel direct injection system control unit - cruise control system switch - cruise control system (CCS) button (Set) - clutch pedal switch

D	Ignition/starter switch
F	Brake light switch
F63	Brake pedal switch
J59	X contact relief relay
J248	Diesel direct injection system control unit
S5	Fuse in fuse box/relay plate
S13	Fuse in fuse box/relay plate
S176	Fuse -4- (30), in fuse box/battery
S243	Fuse in fuse box
T10e	10-pin connector, black, in protective housing for connectors, on left in plenum chamber
T121	121-pin connector
500	Screw connection -1- (30), on relay plate
501	Screw connection -2- (30), on relay plate
A2	Positive (+) connection (15), in dash panel wiring harness
A20	Connection (15a), in dash panel wiring harness
A71	Connection (86), in dash panel wiring harness
A98	Positive (+) connection -4- (30), in dash panel wiring harness
W1	Positive (+) connection -1- (54), in rear wiring harness

Wiring Diagram SEAT LEON 2004 - Diesel direct injection system control unit - cruise control system switch - cruise control system (CCS) button (Set) - clutch pedal switch

E45	Cruise control system switch
E227	Cruise control system (CCS) button (Set)
F36	Clutch pedal switch
J248	Diesel direct injection system control unit
T10d	10-pin connector, green, in protective housing for connectors, on left in plenum chamber
T10e	10-pin connector, black, in protective housing for connectors, on left in plenum chamber
T10s	10-pin connector, next to steering column right

SEAT LEON 2004 Overview of relay

Overview of relay    

1 -	Relay in left engine compartment

q	Position of relays → page 804/2

2 -	Relay on relay plate

q	Position of relays → page 804/3

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

q	Position of relays → page 804/4

Toledo/León	Fitting Locations	No.  804 / 2

Relay in left engine compartment: A -  Secondary air pump relay -J299- (100)  -  High heat output relay -J360- (100) (only models with auxiliary heater) B -  Terminal 30 voltage supply relay -J689- (428)  -  Current supply relay for Simos control unit -J363- (429) (for models with engine code BFQ only)  -  Low heat output relay -J359- (53) (only models with auxiliary heater) C -  Vacant

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Toledo/León	Fitting Locations	No.  804 / 3

SEAT LEON 2004 Relay on relay plate Relay on relay plate 1 -  Dual tone horn relay -J4- (53) 2 -  X-contact relief relay -J59- (100) 3 -  Vacant 4 -  Fuel pump relay -J17- (409)  -  Glow plug relay -J52- (103) V y Vl -  Automatic intermittent wash and wipe relay -J31-  -  with rain sensor, with/without headlight washer system (192)  -  without rain sensor, with headlight washer system (389)  -  without rain sensor, without headlight washer system (377)

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Toledo/León	Fitting Locations	No.  804 / 4

SEAT LEON 2004 Relay on the 13 position additional relay carrier above the relay plate Relay on the 13 position additional relay carrier above the relay plate Left-handdrive vehicles: 1 -  Telephone relay 2....9 -  Vacant 10 -  Fuel pump relay (turbo diesel engine unit injectors) (167) -J17- (up to October 2002)  -  Fuel pump relay (TDI-PD) (53) (from November 2002) 11 -  Automatic gearbox relay AG4 -J60- (175) 12 -  Terminal 30 voltage supply relay -J317- (109) 13 -  Radiator fan relay (53)

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

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Toledo/León	Fitting Locations	No.  804 / 5

SEAT LEON 2004 Glow plug activation control unit: Glow plug activation control unit: A -  Glow plug activation control unit -J370- (with engine code ARL only)

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SEAT LEON 2004 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.

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Toledo/León	Fitting Locations	No.  802 / 3

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

Position of fuses in fuse holder, left dash panel

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

Toledo/León	Fitting Locations	No.  802 / 4

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

Position of fuses in fuse holder, left dash panel

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
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

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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

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Toledo/León	Fitting Locations	No.  802 / 8

SEAT LEON 2004 Fuse on fuse holder, next to battery (up to August 2000): Fuse on fuse holder, next to battery (up to August 2000): Fuses: S162 -  Glow plug heater 50 A S163 -  Engine control unit 50 A S164 -  Radiator fan 40 A S176 -  Passenger compartment, 110A S177 -  Alternator (90 A), 110 A  -  Alternator (120 A), 150 A S178 -  ABS (pump), 30 A S179 -  ABS, 30 A S180 -  Radiator fan 30 A

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Toledo/León	Fitting Locations	No.  802 / 9

SEAT LEON 2004 Fuse on fuse holder, next to battery (from September 2000): Fuse on fuse holder, next to battery (from September 2000): A -  Red wire, 16mm²

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

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

Overview of coupling station and connections for wiring harness    

1 -	Coupling station in protective housing, in plenum chamber

q	With connectors -T10g-, -T10d-, -T10e-, -T10-, -T6l-, -T10h-, -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 2004 Coupling station, right B-pillar Coupling station, right B-pillar 1 -  10-pin connector -T10m-, black, signal loudspeakers, central locking, rear electric window regulator, rear door warning lamp The wiring on the B-pillar, left, is installed vice versa.

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

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Toledo/León	Fitting Locations	No.  803 / 5

SEAT LEON 2004 Coupling station on left of A-pillar Coupling station on left of A-pillar 1 -  10-pin connector -T10i-, black, central locking, electric mirror adjustment, radio with muting / electric windows The wiring on the A-pillar, right, is installed vice versa.

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

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