Contents Wiring diagrams Section: Fuses & Circuit Breakers All sections

Fuses & Circuit Breakers: Other Volkswagen Jetta IV

Fuses & Circuit Breakers 8 illustrations ~355 words

ENGINE CODE

Engines are identified by a 3-letter code stamped on the engine. For engine code locations (Scheme 3)- see scheme 6. Engine codes are also located on the vehicle data plate.

Note. The engine number for the 1.8L turbo can be found on the mating flange between the engine and transmission. The engine code is also imprinted on the front engine lift eyelet (visible after removing cover above fuel injectors).

Scheme 3

Scheme 3: ENGINE CODE

Scheme 4

Scheme 4

Note. Engine code for 1.9L TDI is located between the diesel injection pump and the exhaust manifold on the engine block.

Scheme 5

Scheme 5

Note. Engine code for 2.0L AEG is located on machined pad on front of cylinder block above crankcase breather.

Scheme 6

Scheme 6

Note. Engine code and serial number for 2.0L AVH and AZG is located can be found on the flange between engine/transmission. Additionally there is a sticker on the timing belt guard containing the engine code and serial number. The engine code is also included on the vehicle data plate.

Scheme 7

Scheme 7

Battery Fuse Panel

Battery fuse panel is located on battery. (Scheme 9)

Scheme 8

Scheme 8: Battery Fuse Panel

Scheme 9

Scheme 9
Fuse No.Amp RatingCircuits Protected
162
Engine Codes AEG, AFP, AVH, AWW, AZG50Secondary Air Injector Pump
Engine Code ALH50Preheating Coolant Relay (Low & High Heat)
Engine Code AWW50Secondary Air Injector Pump (1) , Main Fuse Panel
163
Engine Codes AEG, AFP, AVH, AWW, AZG50Fuel Pump
Engine Code ALH50Glow Plug Relay
16440Coolant Fan Control Module
176110Ignition/Starter Switch, Power Supply Relay (B+ Terminal), Passenger Compartment Fuse Panel, Load Reduction Relay
177
Engine Codes AEG, AVH, AZG110Generator
Engine Codes AFP, ALH, AWW150Generator
17830ABS Control Module
17930ABS Control Module
18030Coolant Fan Control Module, Coolant Fan Thermal Switch
(1) Applies to manual transmission only.
(1)Applies to manual transmission only.

FUSE IDENTIFICATION (BATTERY FUSE PANEL)

Main Fuse Panel

For fuse position number, amp rating and description of circuits protected, see FUSE IDENTIFICATION (FUSE PANEL) table.

Note. Fuses 23 through 44 may be designated in wiring diagrams with a prefix of 2. For example, fuse No. 29 may be labeled as 229. Fuse No. 43 may be labeled as 243.

Fuse No.Amp RatingCircuits Protected
110Glove Compartment Light, Washer Nozzle Heater (Left & Right), Memory Seat Control Module
2 (1)10Emergency Flasher Switch
35Instrument Panel Light Dimmer Switch, Fog Light Switch
45License Plate Light
5
All Vehicles7.5Daytime Running Lights Change-Over Relay, Brake Pedal Switch (Brake Vacuum Vent Valve Switch), Heated Seat Control Module (Driver's & Passenger's), Outside Mirror Heating, Cruise Control Switch, Fresh Air/Recirculating Flap Switch, Automatic Day/Night Interior Mirror, Outside Mirror Switch, High Pressure Sensor, Coolant Fan Control Module, DLC
Engine Code AFP7.5Clutch Vacuum Vent, Climate Control Module
Engine Codes AVH, AWW, AZG7.5Cruise Control Switch, Clutch Vacuum Vent Valve Switch
65Comfort System Central Control Module
7 (1)
All Vehicles10Back-Up Light, Speedometer Vehicle Speed Sensor
(2)10Park/Neutral Position Relay, Selector Lever Position Warning Light
8N/AVacant
95ABS Control Module
10
Engine Codes AEG, AVH, AWW, AZG15Engine Control Module (ECM)
Engine Code AFP10Engine Control Module (ECM)
Engine Code ALH5Diesel Direct Fuel Injection Engine Control Module
11
All Vehicles5Control Module W/Indicator Unit
(2)5Control Module W/Indicator Unit, Shift Lock Solenoid
127.5DLC
1310Brake Light Switch
1410Comfort System Central Control Module, Remote Rear Lid Unlock Motor Relay
155Control Module W/Indicator Unit, Transmission Control Module (2)
1610Coolant Fan Control Module
17N/AVacant
1810High Beam Head Light, Headlight (Right), Fog Light Relay And Switch
1910Headlight (Left)
2015Head Light (Right)
2115Head Light (Left)
225Control Module W/Indicator, Tail Light (Right), Parking Light (Right), Front Side Marker Light (Right)
235Control Module W/Indicator, Tail Light (Left), Parking Light (Left), Front Side Marker Light (Left)
2420Wiper/Washer Intermittent Relay And Switch
2525Climate Control Module, Fresh Air Blower Switch
2625Rear Window Defogger Switch
2715Rear Windshield Wiper Motor
2815Fuel Pump
29
Engine Codes AEG, AFP15Ignition Coils, Motronic Engine Control Module
Engine Code ALH10Diesel Direct Fuel Injection Engine Control Module
Engine Codes AVH, AWW, AZG15Motronic Engine Control Module
3020Power Sunroof Control Module
31 (2)
Engine Codes AEG, AFP, AVH, AWW, AZG20Brake Booster Control Module, Transmission Control Module, Multi-Function Transmission Range Switch
Engine Code ALH20Transmission Control Module, Multi-Function Transmission Range Switch
32
Engine Codes AEG, AFP, AVH, AWW, AZG10Fluid Injectors
Engine Code ALH30Fuel Quantity Adjuster, Diesel Direct Fuel Injection Engine Control Module
3320Wiper/Washer Intermittent Relay
34
Engine Codes AEG, AVH, AZG10Positive Crank Case Ventilation Heating Element
Engine Code AFP10Brake Booster Vacuum Valve, Intake Manifold Change-Over Valve, Positive Crank Case Heating Element
Engine Code ALH10Mass Air Flow Sensor, EGR Vacuum Regulator Solenoid Valve, Wastegate Bypass Regulator Valve, Change-Over Valve For Intake Manifold Flap, Cold Start Injector
Engine Code AWW10Turbocharger Recirculating Valve, Wastegate Bypass Regulator Valve, Camshaft Adjustment Valve
3530Luggage Compartment 12V Socket
3615Fog Light Switch
37 (1)10Control Module W/Indicator Unit, Comfort System Central Control Module, Radio
3815Comfort System Central Control Module, Remote Fuel Tank Door, Remote Unlock Rear Lid Motor Relay, Door Control Module (Driver Side Front, Driver Side Rear, Passenger Side Front, Passenger Side Rear) (3)
39 (4)15Emergency Flasher Switch
4020Dual Horn Relay
4115Cigarette Lighter
42 (4)25Radio, Amplifier
43
Engine Codes AEG, AFP, AVH, AWW, AZG10Leak Detection Pump, Evaporative Emission Canister Purge Valve, Mass Air Flow Sensor, Oxygen Sensor, Heated Oxygen Sensor, Secondary Air Injector Solenoid Valve, Secondary Air Injector Pump Relay
Engine Code ALH10Clutch Vacuum Vent Valve Switch (5) , Preheating Coolant Relay (5) , Brake Vacuum Vent Valve Switch (Cruise Control/Diesel), Positive Crankcase Ventilation Heating Element
44 (2)15Heated Seat Control Module (Driver's & Passenger's)
(1) Ignition powered. (2) For 4-speed automatic transmission only. (3) Applies to vehicles equipped with power windows only. (4) Battery powered. (5) Manual transmission only.
(1)Ignition powered.
(2)For 4-speed automatic transmission only.
(3)Applies to vehicles equipped with power windows only.
(4)Battery powered.
(5)Manual transmission only.

FUSE IDENTIFICATION (FUSE PANEL)

Fuse No.Amp RatingCircuits Protected
S51 (1)20ABS Vacuum Pump
S130 (1)40Secondary Air Injection Pump
(1) Located in left side of engine compartment, within protective housing.
(1)Located in left side of engine compartment, within protective housing.

MISCELLANEOUS FUSES

RELAY PANEL & THIRTEENFOLD AUXILIARY RELAY PANEL

For relay position within panels see scheme 11 Thirteenfold auxiliary relay panel is located above relay panel. For relay number, position number and circuits protected, see RELAY IDENTIFICATION (RELAY PANEL) and RELAY IDENTIFICATION (THIRTEENFOLD AUXILIARY RELAY PANEL) tables.

Note. Thirteenfold auxiliary relay panel is under driver's side of dash, behind lower instrument panel trim.

Scheme 10

Scheme 10: RELAY PANEL & THIRTEENFOLD AUXILIARY RELAY PANEL
Position No.Relay No.Circuit Protected
1J4Dual Horn
2J59Load Reduction
3 (1)J207Starting Interlock
4J17Fuel Pump
VJ31Wiper/Washer Intermittent
VIJ31Wiper/Washer Intermittent
(2)S44Power (Memory) Circuit Breaker
(1) Manual transmission only. (2) Relay is installed in any free position, and is not allocated any specific position within 13-way relay carrier.
(1)Manual transmission only.
(2)Relay is installed in any free position, and is not allocated any specific position within 13-way relay carrier.

RELAY IDENTIFICATION (RELAY PANEL)

Position No.Relay No.Circuit Protected
1N/ANot Used
2J398Remote Unlock Rear Lid Motor
3J207Starting Interlock
4J5Fog Light Relay
5J453Multi-Function Steering Wheel Control Module
6J453Multi-Function Steering Wheel Control Module
7J89Daytime Running Lights
8N/ANot Used
9N/ANot Used
10 (1)J52Glow Plug
11 (2)J226Park/Neutral Position
12 (1)J317Power Supply (B+ Terminal)
13N/ANot Used
(1) Applies to vehicle equipped with engine (ALH) only. (2) Applies to vehicles equipped with 4-speed automatic only.
(1)Applies to vehicle equipped with engine (ALH) only.
(2)Applies to vehicles equipped with 4-speed automatic only.

RELAY IDENTIFICATION (THIRTEENFOLD AUXILIARY RELAY PANEL)

Note. Fuse panel is located above thirteenfold auxiliary relay panel. For positions on thirteenfold auxiliary relay panel see scheme 11

Position No.Fuse No.Amp RatingCircuit Protected
(1)S3730Window Regulator
FS11115Alarm System And Anti-Theft
GS14415Central Locking/Anti-Theft Warning System
(1) Manufacturer does not specify position of fuse. Available positions are "D" and "E".
(1)Manufacturer does not specify position of fuse. Available positions are "D" and "E".

FUSE IDENTIFICATION (THIRTEENFOLD AUXILIARY RELAY PANEL)