SKODA OCTAVIA II 2005 — 1.6 ltr. — Simos/75 kW, Engine identification characters BGU, As of May 2004 . Wiring diagrams, Pin Connector, Location

Wiring Diagram SKODA OCTAVIA II 2005 - Battery - starter - alternator - E box

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
SA1	Fuse -1- (30), in the E box
T2t	2-pin connector, in engine compartment, front left (on vehicles with heating)
T4n	4-pin connector, in engine compartment, front left (on vehicles with Climatic / Climatronic)
T8a	8-pin connector, on the onboard power supply control unit (black)
1	Earth strap, battery body
12	Earth point, on left in engine compartment (at longitudinal member)
14	Earth point, on gearbox
*	on vehicles with alternator 90A / 110A
**	on vehicles with alternator 140A

Wiring Diagram SKODA OCTAVIA II 2005 - Terminal 50 voltage supply relay - E box

J682	Terminal 50 voltage supply relay, in the E box
SB15	Fuse -15-, in the E box
SB26	Fuse -26-, in the E box
SB35	Fuse -35-, in the E box
SB49	Fuse -49-, in the E box
SB51	Fuse -51-, in the E box
T8a	8-pin connector, on the onboard power supply control unit (black)
T11a	11-pin connector, on the onboard power supply control unit (black)
T26b	26-pin connector, at the E box
T40a	40-pin connector, at the E box
374	Earth connection -9-, in interior wiring harness
B239	Positive connection -1- (50), in interior wiring harness
B240	Positive connection -2- (50), in interior wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Heating resistor for crankcase ventilation - E box

J217	Automatic gearbox control unit, below the front left mud wing
J329	Terminal 15 voltage supply relay, in the E box
N79	Heating resistor for crankcase ventilation
SB27	Fuse -27-, in the E box
SB28	Fuse -28-, in the E box
SB29	Fuse -29-, in the E box
SB39	Fuse -39-, in the E box
SB41	Fuse -41-, in the E box
SB42	Fuse -42-, in the E box
SB43	Fuse -43-, in the E box
T14a	14-pin connector, on front left in engine compartment (black)
T26b	26-pin connector, at the E box
T40a	40-pin connector, at the E box
*	only on vehicles with extended servicing intervals (ESI)
**	only on vehicles with automatic Gearbox
***	only on vehicles with optional equipment

Wiring Diagram SKODA OCTAVIA II 2005 - Current supply relay for Simos - E box

J293	Radiator fan control unit
J363	Current supply relay for Simos, in the E box
SB6	Fuse -6-, in the E box
SB7	Fuse -7-, in the E box
SB8	Fuse -8-, in the E box
SB9	Fuse -9-, in the E box
SB10	Fuse -10-, in the E box
SB11	Fuse -11-, in the E box
T4p	4-pin connector, in the holder on the left radiator
T26b	26-pin connector, at the E box
T40a	40-pin connector, at the E box
D101	Connection (87a), in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Fuel pump relay - E box

J17	Fuel pump relay, in the E box
SB12	Fuse -12-, in the E box
SB32	Fuse -32-, in the E box
SB33	Fuse -33-, in the E box
SB44	Fuse -44-, in the E box
SB45	Fuse -45-, in the E box
SB46	Fuse -46-, in the E box
T26b	26-pin connector, at the E box
T40a	40-pin connector, at the E box

Wiring Diagram SKODA OCTAVIA II 2005 - Fuse holder

SC14	Fuse -14-, in fuse holder
SC27	Fuse -27-, in fuse holder
SC29	Fuse -29-, in fuse holder
T12d	12-pin connector, in plenum chamber (blue)
A20	Positive connection -1- (15a), in dash panel wiring harness
B315	Positive connection -1- (30a), in interior wiring harness
D52	Positive connection (15a), in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit

J361	Simos control unit
T12d	12-pin connector, in plenum chamber (blue)
T14a	14-pin connector, on front left in engine compartment (black)
T81a	81-pin connector, at engine control unit
131	Earth connection -2-, in engine compartment wiring harness
607	Earth point, on left in plenum chamber
**	only on vehicles with automatic Gearbox

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - accelerator pedal position sender - throttle valve control unit

G79	Accelerator pedal position sender
G185	Accelerator pedal position sender -2-
G186	Throttle valve drive
G187	Throttle valve drive angle sender -1-
G188	Throttle valve drive angle sender -2-
J338	Throttle valve control unit
J361	Simos control unit
T6l	6-pin connector, at accelerator pedal position sender
T6o	6-pin connector, on the throttle valve control unit
T12e	12-pin connector, in plenum chamber (green)
T40b	40-pin connector, at engine control unit
T81a	81-pin connector, at engine control unit

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - engine speed sender - camshaft position sender - coolant temperature sender at radiator outlet

G28	Engine speed sender
G40	Camshaft position sender
G83	Coolant temperature sender at radiator outlet
J293	Radiator fan control unit
J361	Simos control unit
T3l	3-pin connector, at engine speed sender
T3m	3-pin connector, at camshaft position sender
T4p	4-pin connector, in the holder on the left radiator
T12d	12-pin connector, in plenum chamber (blue)
T12e	12-pin connector, in plenum chamber (green)
T40b	40-pin connector, at engine control unit
T81a	81-pin connector, at engine control unit
220	Earth connection (sender earth), in engine wiring harness
*	only on vehicles with optional equipment, depending upon the type of radiator fan

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - knock sensor I - coolant temperature sender - brake vacuum pump

G61	Knock sensor I
G62	Coolant temperature sender
J361	Simos control unit
T6s	6-pin connector, at the brake vacuum pump
T40b	40-pin connector, at engine control unit
T81a	81-pin connector, at engine control unit
V192	Vacuum pump for brakes
**	only on vehicles with automatic Gearbox

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - lambda probe - lambda probe after catalytic converter

G39	Lambda probe
G130	Lambda probe after catalytic converter
J361	Simos control unit
T4r	4-pin connector, at the lambda probe after catalytic converter
T6n	6-pin connector, at the lambda probe (black), at the front wall, left
T81a	81-pin connector, at engine control unit
D180	Connection -1- (87a), in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - injection valves - variable intake manifold change-over valve

J361	Simos control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
N33	Injector, cylinder 4
N156	Variable intake manifold change-over valve
T14a	14-pin connector, on front left in engine compartment (black)
T40b	40-pin connector, at engine control unit
D140	Connection (injectors), in engine wiring harness
D173	Connection (87a), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - exhaust gas recirculation valve - activated charcoal filter system solenoid valve - intake air temperature sender and intake manifold pressure

G42	Intake air temperature sender
G71	Intake manifold pressure sender
G212	Exhaust gas recirculation potentiometer
J361	Simos control unit
N18	Exhaust gas recirculation valve
N80	Activated charcoal filter system solenoid valve
T4t	4-pin connector, at intake air temperature sender and intake manifold pressure
T6p	6-pin connector, at exhaust gas recirculation valve
T14a	14-pin connector, on front left in engine compartment (black)
T40b	40-pin connector, at engine control unit
D141	Connection (5V), in engine wiring harness
D173	Connection (87a), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - ignition system - secondary air pump relay - secondary air pump motor

J299	Secondary air pump relay, in additional relay holder below the E box
J361	Simos control unit
N152	Ignition transformer
P	Spark plug connector
Q	Spark plug
T4s	4-pin connector, at ignition transformer
T14a	14-pin connector, on front left in engine compartment (black)
T40b	40-pin connector, at engine control unit
T81a	81-pin connector, at engine control unit
V101	Secondary air pump motor
281	Earth connection -1-, in engine wiring harness
672	Earth point -2-, on left in engine compartment (at longitudinal member)
673	Earth point -3-, on left in engine compartment (at longitudinal member)
***	only on vehicles with optional equipment

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - brake pedal switch - clutch position sender

F	Brake light switch
F47	Brake pedal switch
G476	Clutch position sender
J361	Simos control unit
J527	Steering column electronics control unit
T4c	4-pin connector, at brake pedal switch
T5j	5-pin connector, at clutch position sender
T12d	12-pin connector, in plenum chamber (blue)
T12e	12-pin connector, in plenum chamber (green)
T16a	16-pin connector, on the onboard power supply control unit (black)
T20a	20-pin connector, at steering column electronics control unit
T81a	81-pin connector, at engine control unit
367	Earth connection -2-, in interior wiring harness
A18	Connection (54), in dash panel wiring harness
B318	Positive connection -4- (30a), in interior wiring harness
B350	Positive connection -1- (87a), in interior wiring harness
*	not valid for vehicles with automatic gearbox Gearbox
**	only on vehicles with GRA

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - fuel gauge sender - fuel pump - fuel supply relay

G	Fuel gauge sender
G6	Fuel pump
J361	Simos control unit
J643	Fuel supply relay, at additional relay holder below dash panel
T5k	5-pin connector, on the fuel pump
T11a	11-pin connector, on the onboard power supply control unit (black)
366	Earth connection -1-, in interior wiring harness
B323	Positive connection -9- (30a), in interior wiring harness
B351	Positive connection -2- (87a), in interior wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Simos control unit - data bus diagnostic interface - dash panel insert - warning lamps - coolant temperature gauge

G3	Coolant temperature gauge
J285	Control unit in dash panel insert
J361	Simos control unit
J533	Data bus diagnostic interface, below dash panel, centre
K	Dash panel insert
K28	Coolant temperature and coolant shortage indicator warning lamp
T12d	12-pin connector, in plenum chamber (blue)
T12e	12-pin connector, in plenum chamber (green)
T16b	16-pin connector, for diagnostic connection, below dash panel, left
T20c	20-pin connector, at data bus diagnostic interface
T36a	36-pin connector, at dash panel insert
T81a	81-pin connector, at engine control unit
A27	Connection (speed signal), in dash panel wiring harness
A76	Connection (diagnosis wire K), in dash panel wiring harness
B383	Connection -1- (CAN H, drive), in interior wiring harness
B390	Connection -1- (CAN L, drive), in interior wiring harness

Wiring Diagram SKODA OCTAVIA II 2005 - Dash panel insert - warning lamps - fuel gauge - rev. counter - speedometer - oil pressure switch - oil level/oil temperature sender

F1	Oil pressure switch
G1	Fuel gauge
G5	Rev. Counter
G21	Speedometer
G266	Oil level/oil temperature sender
J285	Control unit in dash panel insert
K	Dash panel insert
K3	Oil pressure warning lamp
K38	Oil level warning lamp
K83	Exhaust emissions warning lamp
K105	Fuel reserve warning lamp
K132	Electronic power control fault lamp
T6j	6-pin connector, on front left in engine compartment (black)
T14a	14-pin connector, on front left in engine compartment (black)
T36a	36-pin connector, at dash panel insert
269	Earth connection (sender earth) -1-, in dash panel wiring harness
374	Earth connection -9-, in interior wiring harness
*	only on vehicles with extended servicing intervals (ESI)