In this book, only the schemes of electrical connections are given.

To get acquainted and to buy the full book on car repair Volkswagen T5 / Transporter / Caravelle / Multivan / California since 2009 (including electrics) it is possible under the link

Content

Vehicle electrical equipment and systems

Vehicle controls and auxiliary electrical equipment

Lighting

Wiring diagrams

Basic equipment

• Ignition and starter switch
• Onboard power supply control unit
• Fuse in fuse box
• Diagnostic connector
• Upper brake light
• License plate lighting
• Hazard light switch
• Hazard warning light
• Side repeater lamp, left turn signal
• Right turn signal side repeater lamp
• Light switch
• Rear fog light switch
• Fog light and fog light switch
• Relief relay for contact
• Headlight front left
• Left headlight range control motor
• Left fog light bulb
• Right fog light bulb
• Headlight front right
• Switch and instrument cluster illumination dimmer
• Right headlight range control motor
• Left tail light
• Right rear light
• Turn signal switch
• Switch for low beam and light signal (incl. high beam)
• Parking light switch
• Cruise control switch
• Steering column control unit
• Multifunction display call key
• Multifunction display memory switch
• Coiled airbag cable with slip ring
• Steering angle sensor
• Horn switch
• Airbag control unit
• Airbag igniter
• Generator
• Driver door limit switch
• Front passenger door limit switch
• Rear left door limit switch
• Rear right door limit switch
• Hood limit switch
• Glove box light switch
• Beep and dual tone
• Low tone
• Cigarette lighter lamp
• Cigarette lighter
• Glove box light
• Brake fluid warning sensor
• Washer fluid level sensor
• Instrument cluster
• Fuel level sensor
• Priming fuel pump
• Outside temperature sensor
• Low coolant level sensor
• Fuel pump relay
• Oil pressure sensor
• Oil level and temperature sensor
• Immobilizer reading coil
• Parking brake limit switch
• Front left brake pad wear sensor
• Brake pad wear sensor, rear right wheel
• Supply fan switch
• Auxiliary water heater relay
• Supply fan ballast with overheat protection fuse
• Supply fan
• Actuator motor for fresh air and air recirculation dampers
• Rear fresh air blower ballast
• Rear intake fan
• Rear temperature flap control motor
• Fresh air blower isolation relay
• Coolant shut-off valve
• Rear intake fan
• Rear air blower switch
• Air distribution control motor, rear
• Rear temperature flap control motor
• Rear air distribution motor
• Rear air blower switch
• Fresh air blower isolation relay
• Rear fresh air blower ballast

2.0L petrol engine code AXA

• Battery
• Starter
• Generator
• Voltage regulator
• Fuse box
• Fuel pump relay
• Electric fuel pump relay
• Fuse in fuse box
• Terminal power relay
• Engine control unit
• Crankcase ventilation heating resistor
• Ignition coil
• Candle tip
• Spark plugs
• Engine speed sensor
• Knock sensor
• Engine control unit
• Hall sensor
• Coolant temperature sensor
• EGR potentiometer
• EGR valve
• Cruise control switch
• Turn off stop light
• Clutch pedal switch
• Cylinder nozzle
• Intake air temperature sensor
• Air mass meter
• Radiator fan control unit
• Auxiliary coolant pump relay
• Lambda probe
• Lambda probe after converter
• Lambda probe heating element
• Heating element of the lambda probe after the converter
• Accelerator pedal position sensor
• Electric throttle
• Throttle angle sensor
• Throttle body
• Secondary air pump relay
• Absorber solenoid valve
• Secondary air pump motor
• Ignition and starter switch
• Oil pressure sensor
• Tachometer
• Contact unloading relay
• Instrument cluster control unit
• Onboard power supply control unit
• Generator control lamp
• Oil pressure warning light
• Low oil warning light
• Fuel level sensor
• Fuel gauge
• Priming fuel pump
• Speedometer
• Oil level and temperature sensor
• Instrument cluster control unit
• Mileage indicator

2.0L petrol engine code CJKA

• Battery
• Starter
• Generator
• Voltage regulator
• Fuse box
• Fuse in fuse box
• Terminal power relay
• Engine control unit
• Fuse box
• Ignition coil with output stage
• Candle tip
• Spark plugs
• Cylinder nozzle
• Crankcase ventilation heating resistor
• Coolant pump after engine shutdown
• Valve lift control actuator,
• Coolant temperature sensor
• Coolant pump relay
• Fuel shutoff valve shutdown relay
• Auxiliary coolant pump relay
• Pressure regulator
• Engine speed sensor
• Boost pressure sensor
• Air mass meter
• Intake flap/choke position sensor (potentiometer)
• Hall sensor
• Intake air temperature sensor
• Knock sensor
• Fuel pressure sensor
• Cruise control switch
• Stoplight switch
• Clutch position sensor
• Mechatronics for direct shift gearboxes
• Starter relay
• Starter interlock relay, clutch pedal sensor, engine control module
• Fuse in fuse box
• Radiator outlet coolant temperature sensor
• Boost pressure control solenoid valve
• Absorber solenoid valve
• Valve for variable valve timing
• Turbocharger wastegate
• Intake damper valve
• Radiator fan control unit
• Accelerator pedal position sensor
• Electric throttle
• Throttle body
• Lambda probe
• Lambda probe after converter
• Lambda probe heating element
• Heating element of the lambda probe after the converter
• Oil pressure sensor
• Fuel gauge
• Tachometer
• Contact unloading relay
• Instrument cluster control unit
• Onboard power supply control unit
• Instrument cluster
• Oil pressure warning light
• Low oil warning light
• Fuel level sensor
• Priming fuel pump
• Oil level and temperature sensor
• Instrument cluster control unit
• Fuel pump control unit
• Generator control lamp
• Mileage indicator

2.0L diesel engine code CAAA, CAAB, CAAC, CAAD, CAAE, CCHA, CCHB

• Battery
• Starter
• Generator
• Voltage regulator
• Fuse in fuse box
• Terminal power relay
• Engine control unit
• Fuse box
• Glow plug control unit
• Hall sensor
• Coolant temperature sensor
• Auxiliary coolant pump relay
• Crankcase ventilation heating resistor
• Engine speed sensor
• Throttle Potentiometer
• Fuel temperature sensor
• Fuel pressure sensor
• Throttle body
• Electric motor air damper actuator/inlet flaps
• EGR potentiometer
• Turbocharger guide position sensor
• EGR valve
• Fuel pressure regulator
• Fuel metering valve
• Stoplight switch
• Clutch pedal switch
• Clutch position sensor
• Mechatronics for direct shift gearboxes
• Cruise control switch
• Cylinder nozzle 
• Coolant pump after engine shutdown
• Boost pressure sensor
• Intake air temperature sensor
• Air mass meter
• Radiator fan control unit
• Radiator outlet coolant temperature sensor
• Exhaust gas temperature sensor
• Boost pressure control solenoid valve
• EGR cooler changeover valve
• Intake manifold pressure sensor
• Exhaust gas pressure sensor
• Lambda probe
• Accelerator pedal position sensor
• Heating element lambda-
• Fuel pump relay
• Electric fuel pump relay
• Additional fuel pump
• Starter relay
• Fuse in fuse box
• Mode key start/stop
• Voltage stabilizer
• Data bus diagnostic interface
• Diagnostic connector
• Ignition and starter switch
• Fuel gauge
• Contact unloading relay
• Instrument cluster control unit
• Generator control lamp
• Oil pressure warning light
• Oil pressure sensor
• Fuel level sensor
• Tachometer
• Priming fuel pump
• Oil level and temperature sensor
• Instrument cluster control unit
• Glow warning light
• Low oil warning light
• Mileage indicator
• Battery
• Starter
• Generator
• Voltage regulator
• Terminal power relay
• Fuse box
• Glow plug control unit
• Crankcase ventilation heating resistor
• Hall sensor
• Coolant temperature sensor
• Boost pressure sensor
• Auxiliary coolant pump relay
• Engine speed sensor
• Throttle potentiometer
• Fuel temperature sensor
• Fuel pressure sensor
• Throttle body
• Air damper/damper motor
• EGR potentiometer
• Control damper potentiometer
• EGR valve
• Fuel pressure regulator
• Fuel metering valve
• Cruise control switch
• Stoplight switch
• Clutch position sensor
• Engine control unit
• Mechatronics for direct shift gearboxes
• Starter relay
• Starter interlock relay
• Starter interlock relay, clutch pedal sensor
• Cylinder nozzle
• Coolant pump after engine shutdown
• Boost pressure sensor
• Intake air temperature sensor
• Air mass meter
• Radiator fan control unit
• Radiator outlet coolant temperature sensor
• Exhaust gas temperature sensor
• Boost pressure control solenoid valve
• Exhaust damper valve
• EGR radiator diverter valve
• Intake manifold pressure sensor
• Exhaust gas pressure sensor
• Lambda probe
• Accelerator pedal position sensor
• Lambda probe heating element
• Fuel pump relay
• Electric fuel pump relay
• Additional fuel pump
• Oil pressure sensor
• Fuel gauge
• Tachometer
• Contact unloading relay
• Instrument cluster control unit
• Onboard power supply control unit
• Instrument cluster
• Oil pressure warning light
• Low oil warning light
• Priming fuel pump
• Oil level and temperature sensor
• Instrument cluster control unit
• Instrument cluster
• Generator control lamp
• Glow warning light
• Mileage indicator

Anti-lock braking system (ABS) with electronic stability program (ESP)

• Battery
• Tire pressure indicator key
• ABS control unit
• Fuse in fuse box
• Control unit fuse
• ASR and ESP disable key
• ABS control unit
• Rear right wheel speed sensor
• Rear left wheel speed sensor
• Front right wheel speed sensor
• Front left wheel speed sensor
• Onboard control unit
• Front left brake pad wear sensor
• Brake pad wear sensor, rear right wheel
• Steering angle sensor
• Instrument cluster control unit
• Instrument cluster
• Fuse in fuse box
• Front left brake pad wear sensor
• Brake pad wear sensor, rear right wheel
• Steering angle sensor

CAN and LIN bus, Drive CAN bus, Diagnostics CAN bus, Instrument cluster CAN bus, Convenience CAN bus, (7L3)

• Coiled airbag cable with slip ring
• Steering angle sensor
• Driver door control unit
• Front passenger door control unit
• Multifunction steering wheel control unit
• Onboard power supply control unit
• Data bus diagnostic interface
• Selector
• Tachograph
• Airbag control unit
• Instrument cluster control unit
• Trailer detection control unit
• Parking aid control unit
• Rear view camera control unit
• TV tuner
• Interface for external multimedia devices
• Rear control and display panel for the air conditioner
• Heater control unit
• Climatronic control unit
• Air conditioning control unit
• Left sliding door control unit
• Right sliding door control unit
• Mobile phone control electronics control unit
• Control unit with radio navigation display
• Voice amplifier control unit
• Ceiling display
• Head unit
• Amplifier
• All-wheel drive control unit
• Mechatronics for direct shift gearboxes
• Lane change assist control unit
• CAN bus isolation relay drive
• ABS control unit
• Headlight range control unit
• Engine control unit

CAN and LIN bus, Drive CAN bus, Diagnostics CAN bus, Instrument cluster CAN bus, Convenience CAN bus, (7L6)

• Tachograph
• Instrument cluster control unit
• Mobile phone control electronics control unit
• Control unit with radio navigation display
• Data bus diagnostic interface
• Voice amplifier control unit
• Rear view camera control unit
• Head unit
• Amplifier
• TV tuner
• Generator
• Data bus diagnostic interface
• Interface for external multimedia devices
• Diagnostic connector
• Coiled airbag cable with slip ring
• Steering angle sensor
• Driver door control unit
• Front passenger door control unit
• Multifunction steering wheel control unit
• Onboard control unit
• Airbag control unit
• Trailer detection control unit
• Headlight range control unit
• Parking aid control unit
• Left sliding door control unit
• Right sliding door control unit
• Rear control and display panel for the air conditioner
• Heater control unit
• Climatronic control unit
• Air conditioning control unit
• Ceiling display
• ABS control unit
• All-wheel drive control unit
• Engine control unit
• Lane change assist control unit
• CAN bus isolation relay drive

Audio system

• Voltage stabilizer
• Head unit
• Fuse in fuse box
• Data bus diagnostic interface
• Front left speaker
• Front right speaker
• Woofer front left
• Two-way speaker (mid- and high-frequency), front left
• Two-way speaker (mid- and high-frequency), front right
• Tweeter, Rear Left
• Woofer, rear left
• Tweeter rear right
• Woofer, rear right
• CD changer

Multimedia system

• Data bus diagnostic interface
• iPod connector
• Interface for external multimedia devices
• Fuse in fuse box
• Connector for external audio devices
• Interface for external multimedia devices

DSG transmission

• Starter relay
• Mechatronics for direct shift gearboxes
• Fuse in fuse box
• Selector
• Selector lever lock solenoid
• ABS control unit
• Instrument cluster control unit
• Onboard power supply control unit
• Engine control unit

Multifunction steering wheel

• Coiled airbag cable with slip ring
• Horn switch
• Multifunction steering wheel control unit
• Fuse in fuse box
• Multifunction buttons on steering wheel, left
• Multifunction buttons on the steering wheel, right
• Coiled airbag cable with slip ring
• Airbag control unit
• Multifunction steering wheel control unit
• Onboard power supply control unit

Rear window heating element

• Heated rear window switch
• Climatronic control unit
• Air conditioning control unit
• Onboard power supply control unit
• Fuse in fuse box
• Rear window heater
• Rear window heating element, left hinged door
• Rear window heating element, right hinged door

Powered exterior mirrors

• Noise filter
• Door mirror switch
• Button for heated exterior mirrors
• Lane change assist warning light in exterior mirror, driver's side
• Outside mirror, driver's side
• Noise filter,
• Outside mirror, driver's side
• Driver side exterior mirror heating element
• Driver door limit switch
• Front passenger door limit switch
• Onboard power supply control unit
• Front passenger side exterior mirror

Lane change assistant

• Lane change assistant button
• Lane change assist control unit
• Fuse in fuse box
• Onboard power supply control unit
• Lane change assist control unit
• Lane change assist control unit
• CAN bus isolation relay drive
• Fuse in fuse box
• Noise filter
• Lane change assist control unit
• Lane change assist warning light in exterior mirror, driver's side,
• Lane change assist warning light in exterior mirror, front passenger side