SKODA OCTAVIA II 2012 – 1.6 ltr. – Simos/75 kW, Engine identification characters CHGA, As of May 2011 . Wiring diagrams, Pin Connector, Location

Wiring Diagram SKODA OCTAVIA II 2012 - Battery - starter - alternator with voltage regulator - E box

A	Battery
B	Starter
CX1	Alternator with voltage regulator
J519	Onboard power supply control unit
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)
T52ac	52-pin connector, on the onboard power supply control unit (brown)
1	Earth strap, battery body
12	Earth point, on left in engine compartment (at longitudinal member)
14	Earth point, on gearbox
B177	Connection (61), in interior wiring harness
*1	on vehicles with alternator 90A / 110A
*2	on vehicles with alternator 140A
*3	not valid for vehicles with automatic gearbox
*4	for vehicles with automatic gearbox

Wiring Diagram SKODA OCTAVIA II 2012 - Current supply relay for Simos - E box

J363	Current supply relay for Simos, in the E box
J519	Onboard power supply control unit
SB13	Fuse -13-, in the E box
SB14	Fuse -14-, in the E box
SB15	Fuse -15-, in the E box
SB21	Fuse -21-, in the E box
SB22	Fuse -22-, in the E box
T40a	40-pin connector, at the E box
B350	Positive connection -1- (87a), in interior wiring harness
*	not valid for vehicles with automatic gearbox

Wiring Diagram SKODA OCTAVIA II 2012 - Secondary air pump relay - E box

J293	Radiator fan control unit
J299	Secondary air pump relay, in the E box
J519	Onboard power supply control unit
SB10	Fuse -10-, in the E box
SB20	Fuse -20-, in the E box
SB23	Fuse -23-, in the E box
SB24	Fuse -24-, in the E box
SB27	Fuse -27-, in the E box
T4p	4-pin connector, in the holder on the left radiator
T40a	40-pin connector, at the E box
D101	Connection (87a), in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2012 - Fuse holder

J217	Automatic gearbox control unit, below the front left mud wing
J519	Onboard power supply control unit
SC1	Fuse -1-, in fuse holder
SC27	Fuse -27-, in fuse holder
SC29	Fuse -29-, in fuse holder
SC30	Fuse -30-, in fuse holder
SC31	Fuse -31-, in fuse holder
T14a	14-pin connector, on front left in engine compartment (black)
A20	Positive connection -1- (15a), in dash panel wiring harness
B280	Positive connection -4- (15a), in interior wiring harness
B315	Positive connection -1- (30a), in interior wiring harness
*	only on vehicles with automatic gearbox

Wiring Diagram SKODA OCTAVIA II 2012 - Terminal 50 voltage supply relay - fuse holder

J519	Onboard power supply control unit
J682	Terminal 50 voltage supply relay, at relay holder below the onboard power supply control unit
SC2	Fuse -2-, in fuse holder
SC4	Fuse -4-, in fuse holder
T52ab	52-pin connector, on the onboard power supply control unit (white)
T52ac	52-pin connector, on the onboard power supply control unit (brown)
374	Earth connection -9-, in interior wiring harness
A20	Positive connection -1- (15a), in dash panel wiring harness
A38	Positive connection -2- (15a), in dash panel wiring harness
B239	Positive connection -1- (50), in interior wiring harness
B279	Positive connection -3- (15a), in interior wiring harness
*	only on vehicles with extended servicing intervals (ESI)

Wiring Diagram SKODA OCTAVIA II 2012 - Simos control unit

J361	Simos control unit
J519	Onboard power supply control unit
T81a	81-pin connector, at engine control unit
44	Earth point -1-, on lower part of left A-pillar
131	Earth connection -2-, in engine compartment wiring harness
*	only on vehicles with automatic gearbox

Wiring Diagram SKODA OCTAVIA II 2012 - 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
J519	Onboard power supply control unit
T6l	6-pin connector, at accelerator pedal position sender
T6o	6-pin connector, on the throttle valve control unit
T40b	40-pin connector, at engine control unit
T81a	81-pin connector, at engine control unit

Wiring Diagram SKODA OCTAVIA II 2012 - 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
J519	Onboard power supply 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
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 2012 - Simos control unit - knock sensor I - coolant temperature sender - brake vacuum pump

G61	Knock sensor I
G62	Coolant temperature sender
J361	Simos control unit
J519	Onboard power supply 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 2012 - Simos control unit - lambda probe - lambda probe after catalytic converter

G39	Lambda probe
G130	Lambda probe after catalytic converter
J361	Simos control unit
J519	Onboard power supply 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 2012 - Simos control unit - activated charcoal filter system solenoid valve - variable intake manifold change-over valve - intake air temperature sender and intake manifold pressure

G42	Intake air temperature sender
G71	Intake manifold pressure sender
J361	Simos control unit
J519	Onboard power supply control unit
N80	Activated charcoal filter system solenoid valve
N156	Variable intake manifold change-over valve
T4t	4-pin connector, at intake air temperature sender and intake manifold pressure
T14a	14-pin connector, on front left in engine compartment (black)
T40b	40-pin connector, at engine control unit
D173	Connection (87a), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2012 - Simos control unit - ignition system - secondary air pump motor

J361	Simos control unit
J519	Onboard power supply 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
44	Earth point -1-, on lower part of left A-pillar
85	Earth connection -1-, in engine compartment wiring harness
167	Earth connection -4-, in engine compartment wiring harness
673	Earth point -3-, on left in engine compartment (at longitudinal member)

Wiring Diagram SKODA OCTAVIA II 2012 - Simos control unit - brake pedal switch - clutch position sender

F	Brake light switch, at master brake cylinder
F47	Brake pedal switch, at master brake cylinder
G476	Clutch position sender
J361	Simos control unit
J519	Onboard power supply control unit
J527	Steering column electronics control unit
T4c	4-pin connector, at brake pedal switch
T5j	5-pin connector, at clutch position sender
T16n	16-pin connector, at steering column electronics control unit
T52ac	52-pin connector, on the onboard power supply control unit (brown)
T81a	81-pin connector, at engine control unit
374	Earth connection -9-, in interior wiring harness
A18	Connection (54), in dash panel wiring harness
*	not valid for vehicles with automatic gearbox

Wiring Diagram SKODA OCTAVIA II 2012 - Simos control unit - fuel gauge sender - fuel pump - fuel pump relay - fuel supply relay

G	Fuel gauge sender
G6	Fuel pump
J17	Fuel pump relay, at additional relay holder above the onboard power supply control unit
J361	Simos control unit
J519	Onboard power supply control unit
J643	Fuel supply relay, at relay holder below the onboard power supply control unit
T5k	5-pin connector, on the fuel pump
T52ab	52-pin connector, on the onboard power supply control unit (white)
T81a	81-pin connector, at engine control unit
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 2012 - Simos control unit - gas mode control unit

J361	Simos control unit
J519	Onboard power supply control unit
J659	Gas mode control unit
T6ag	6-pin connector, near the injection valves
T10v	10-pin connector, on rear left in engine compartment (black)
T32d	32-pin connector, at gas mode control unit
T40b	40-pin connector, at engine control unit
T48a	48-pin connector, at gas mode control unit
T81a	81-pin connector, at engine control unit

Wiring Diagram SKODA OCTAVIA II 2012 - Gas mode control unit - fuel selection switch (petrol - gas)

E395	Fuel selection switch (petrol, gas)
J519	Onboard power supply control unit
J659	Gas mode control unit
L76	Light switch illumination bulb
T6al	6-pin connector, at fuel selection switch (petrol, gas)
T10v	10-pin connector, on rear left in engine compartment (black)
T32d	32-pin connector, at gas mode control unit
T48a	48-pin connector, at gas mode control unit
359	Earth connection, in gas mode wiring harness
368	Earth connection -3-, in interior wiring harness
A19	Connection (58d), in dash panel wiring harness
G13	Connection -2-, in gas mode wiring harness

Wiring Diagram SKODA OCTAVIA II 2012 - Gas mode control unit - injection valves

J519	Onboard power supply control unit
J659	Gas mode control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
N33	Injector, cylinder 4
T6ag	6-pin connector, near the injection valves
T6ah	6-pin connector, near the injection valves
T14a	14-pin connector, on front left in engine compartment (black)
T48a	48-pin connector, at gas mode control unit
D140	Connection (injectors), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2012 - Gas mode control unit - gas injectors

J519	Onboard power supply control unit
J659	Gas mode control unit
N366	Gas injection valve -1-
N367	Gas injection valve -2-
N368	Gas injection valve -3-
N369	Gas injection valve -4-
T10v	10-pin connector, on rear left in engine compartment (black)
T48a	48-pin connector, at gas mode control unit
D101	Connection (87a), in engine compartment wiring harness
G12	Connection -1-, in gas mode wiring harness

Wiring Diagram SKODA OCTAVIA II 2012 - Gas mode control unit - gas rail sensor - high pressure valve for gas mode

G401	Gas rail sensor
J519	Onboard power supply control unit
J659	Gas mode control unit
N372	High pressure valve for gas mode
T4af	4-pin connector, at gas rail sensor
T48a	48-pin connector, at gas mode control unit

Wiring Diagram SKODA OCTAVIA II 2012 - Gas mode control unit - gas tank valve - gas supply display sender

G707	Gas supply display sender
J519	Onboard power supply control unit
J659	Gas mode control unit
N495	Gas tank valve
T4al	4-pin connector, at gas supply display sender
T6ak	6-pin connector, under right rear bench seat (black)
T10v	10-pin connector, on rear left in engine compartment (black)
T48a	48-pin connector, at gas mode control unit
G14	Connection -3-, in gas mode wiring harness

Wiring Diagram SKODA OCTAVIA II 2012 - Data bus diagnostic interface - dash panel insert - warning lamps - gas supply display

G706	Gas supply display
J285	Control unit in dash panel insert
J519	Onboard power supply control unit
J533	Data bus diagnostic interface, below dash panel
K	Dash panel insert
K28	Coolant temperature and coolant shortage indicator warning lamp
K192	Natural gas mode warning lamp
K249	Warning light for engine cold
T16b	16-pin connector, for diagnostic connection
T20c	20-pin connector, at data bus diagnostic interface
T32c	32-pin connector, at dash panel insert
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 2012 - 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
J519	Onboard power supply control unit
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)
T32c	32-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)