SKODA OCTAVIA II 2010 — 1.6 ltr. — TDI Common Rail/77 kW, Engine identification characters CAYC, As of June 2009 . Wiring diagrams, Pin Connector, Location

Wiring Diagram SKODA OCTAVIA II 2010 - Battery - starter - alternator - E box

A	Battery
B	Starter
C	Alternator
C1	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	for vehicles with automatic gearbox
*4	not valid for vehicles with automatic gearbox

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system relay - E box

J322	Diesel direct injection system relay, 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
*	not valid for vehicles with automatic gearbox

Wiring Diagram SKODA OCTAVIA II 2010 - E box

J293	Radiator fan control unit
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
TV23	Push-in bridge, in the E box
D78	Positive connection -1- (30a), in engine compartment wiring harness
D101	Connection (87a), in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Fuse holder

J519	Onboard power supply control unit
J749	Fuel pump relay for additional heater, at additional relay holder above the 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
A20	Positive connection -1- (15a), in dash panel wiring harness
B280	Positive connection -4- (15a), in interior wiring harness
B281	Positive connection -5- (15a), in interior wiring harness
B315	Positive connection -1- (30a), in interior wiring harness
B323	Positive connection -9- (30a), in interior wiring harness
*	on vehicles with auxiliary heating

Wiring Diagram SKODA OCTAVIA II 2010 - 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 2010 - Diesel direct injection system control unit - automatic glow period control unit - glow plugs

J179	Automatic glow period control unit, below the E box
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
Q10	Glow plug -1-
Q11	Glow plug -2-
Q12	Glow plug -3-
Q13	Glow plug -4-
T14a	14-pin connector, on front left in engine compartment (black)
T94a	94-pin connector, at engine control unit
131	Earth connection -2-, in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit

J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
T94a	94-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
D180	Connection -1- (87a), in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - accelerator pedal position sender - charge air pressure sender - intake air temperature sender

F268	Additional heating heater element contact switch (PTC)
G31	Charge air pressure sender
G42	Intake air temperature sender
G79	Accelerator pedal position sender
G185	Accelerator pedal position sender -2-
J248	Diesel direct injection system control unit
J359	Low heat output relay, at additional relay holder above the onboard power supply control unit
J360	High heat output relay, at additional relay holder above the onboard power supply control unit
J519	Onboard power supply control unit
T4f	4-pin connector, in the holder on the gearbox (black)
T4o	4-pin connector, at charge air pressure sender and intake air temperature sender
T6l	6-pin connector, at accelerator pedal position sender
T20b	20-pin connector, on the heating and fresh air control
T94a	94-pin connector, at engine control unit
*	only on vehicles with additional heater (PTC)
	only on vehicles with heating

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - engine speed sender - camshaft position sender - coolant temperature sender - coolant temperature sender at radiator outlet

G28	Engine speed sender
G40	Camshaft position sender
G62	Coolant temperature sender
G83	Coolant temperature sender at radiator outlet
J248	Diesel direct injection system control unit
J293	Radiator fan 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
T10r	10-pin connector, on left wheel housing in engine compartment (black)
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
220	Earth connection (sender earth), in engine wiring harness
474	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - intake manifold flap potentiometer - intake manifold flap motor - coolant circulation pump 2

G336	Intake manifold flap potentiometer
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
T3aa	3-pin connector, at the coolant circulation pump 2
T5n	5-pin connector, at intake manifold flap motor
T14a	14-pin connector, on front left in engine compartment (black)
T60a	60-pin connector, at engine control unit
V157	Intake manifold flap motor
V178	Coolant circulation pump 2
44	Earth point -1-, on lower part of left A-pillar
85	Earth connection -1-, in engine compartment wiring harness
220	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V), in engine wiring harness
*	only on vehicles with optional equipment

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - fuel temperature sender - injection valves

G81	Fuel temperature sender
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
N33	Injector, cylinder 4
T60a	60-pin connector, at engine control unit

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - fuel pressure sender - exhaust gas recirculation cooler change-over valve

G247	Fuel pressure sender
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
N345	Exhaust gas recirculation cooler change-over valve
T3z	3-pin connector, at fuel pressure sender
T10r	10-pin connector, on left wheel housing in engine compartment (black)
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
220	Earth connection (sender earth), in engine wiring harness
D102	Connection (87a), in engine compartment wiring harness
D141	Connection (5V), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - charge pressure control solenoid valve - fuel pressure regulating valve - fuel metering valve

J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
N75	Charge pressure control solenoid valve
N276	Fuel pressure regulating valve
N290	Fuel metering valve
T14a	14-pin connector, on front left in engine compartment (black)
T60a	60-pin connector, at engine control unit
D102	Connection (87a), in engine compartment wiring harness
D173	Connection (87a), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - lambda probe

G39	Lambda probe
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
T6n	6-pin connector, at the lambda probe (black), at the front wall, left
T94a	94-pin connector, at engine control unit

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - air mass meter - position sensor for charge air pressure actuator

G70	Air mass meter
G581	Position sensor for charge air pressure actuator
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
T3g	3-pin connector, at position sensor for charge air pressure actuator
T3ah	3-pin connector, at air mass meter
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
220	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - exhaust gas recirculation control motor - exhaust gas recirculation potentiometer - throttle valve control unit - throttle valve potentiometer

G69	Throttle valve potentiometer
G212	Exhaust gas recirculation potentiometer
J248	Diesel direct injection system control unit
J338	Throttle valve control unit
J519	Onboard power supply control unit
N18	Exhaust gas recirculation valve
T5r	5-pin connector, on the throttle valve control unit
T6x	6-pin connector, on exhaust gas recirculation control motor
T60a	60-pin connector, at engine control unit
V338	Exhaust gas recirculation control motor
220	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V), in engine wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - differential pressure indicator - exhaust gas pressure sender -1- - exhaust gas temperature sender -3- - exhaust gas temperature sender -4-

G235	Exhaust gas temperature sender -1-
G495	Exhaust gas temperature sender -3-
G505	Differential pressure indicator, in the holder on engine
G648	Exhaust gas temperature sender -4-
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
T2aa	2-pin connector, at exhaust gas temperature sender -1- (black), at the front wall, left
T2ab	2-pin connector, at exhaust gas temperature sender -3- (brown), at the front wall, left
T2ac	2-pin connector, at exhaust gas temperature sender -4- (orange), at the front wall, left
T3aj	3-pin connector, at differential pressure indicator
T94a	94-pin connector, at engine control unit
327	Earth connection (sender earth), in engine compartment wiring harness
328	Earth connection -2- (sender earth), in engine compartment wiring harness
D195	Connection -1- (5V), in engine compartment wiring harness

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system 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
J248	Diesel direct injection system 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
T20a	20-pin connector, at steering column electronics control unit
T52ac	52-pin connector, on the onboard power supply control unit (brown)
T94a	94-pin connector, at engine control unit
372	Earth connection -7-, in interior wiring harness
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 2010 - Diesel direct injection system control unit - heating resistor relay - heating resistor for crankcase ventilation

J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
J925	Relay for heating resistor, at additional relay holder above the onboard power supply control unit
N79	Heating resistor for crankcase ventilation
T10r	10-pin connector, on left wheel housing in engine compartment (black)
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
D102	Connection (87a), in engine compartment wiring harness
*	only on vehicles with optional equipment
**	valid up to 10.09
***	valid as of 11.09

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - fuel gauge sender - fuel pump - fuel pump relay

G	Fuel gauge sender
G6	Fuel pump
J17	Fuel pump relay, at additional relay holder above the onboard power supply control unit
J248	Diesel direct injection system control unit
J519	Onboard power supply control unit
J749	Fuel pump relay for additional heater, at additional relay holder above the onboard power supply control unit
T5k	5-pin connector, on the fuel pump
T94a	94-pin connector, at engine control unit
366	Earth connection -1-, in interior wiring harness
B429	Connection (EKPR), in interior wiring harness
D181	Connection -2- (87a), in engine compartment wiring harness
*1	on vehicles with auxiliary heating

Wiring Diagram SKODA OCTAVIA II 2010 - Diesel direct injection system control unit - data bus diagnostic interface - dash panel insert - warning lamps - coolant temperature gauge

G3	Coolant temperature gauge
J248	Diesel direct injection system control unit
J285	Control unit in dash panel insert
J519	Onboard power supply control unit
J533	Data bus diagnostic interface, below dash panel, centre
K	Dash panel insert
K28	Coolant temperature and coolant shortage indicator warning lamp
K231	Diesel particle filter warning light
T20c	20-pin connector, at data bus diagnostic interface
T32c	32-pin connector, at dash panel insert
T94a	94-pin connector, at engine control unit
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 2010 - 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
K29	Glow period warning lamp
K38	Oil level warning lamp
K83	Exhaust emissions warning lamp
K105	Fuel reserve warning 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)