Vauxhall Workshop Service and Repair Manuals

Test

Work Order Description

Nominal Value

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Reconnect all disconnected components
• All consumers turned off
• Ignition ON
• Following gear is not engaged:
  Reverse gear
  Selector lever in position R
• Insert new fuse FE25 and then check the fuse for proper operation.

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A112 Control Unit - Transmission
  (Wiring Harness Connector XC60 )
• Ignition ON
• Insert new fuse FE25 and then check the fuse for proper operation.

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector XC2 )
• Ignition ON
• Insert new fuse FE25 and then check the fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  A40 Ignition Coil - Direct Ignition
  B69 Air Mass Meter

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  S32 Switch - Reversing Lamp
• Ignition ON
• Insert new fuse FE25 and then check the fuse for proper operation.

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Connect fused jumper wire to:
  S32 Switch - Reversing Lamp
  Wiring harness connector (wiring harness side) terminal A
  &
  Battery voltage
• Ignition ON
• Check the following component for proper operation:
  Fuse of the fused jumper wire

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FE25 has occurred

Note:

In case of a temporary current overload, the cause for the blow of the fuse may be located in a circuit behind the control unit/component.

These circuits should be checked additionally for short to ground.

• If the nominal value is reached during one of the measurements, the component/control unit that has been disconnected immediately before that measurement is defective.

Note:

If the defective component is a control unit, the cause for the fault may be located in a circuit behind that component.

These circuits should be checked additionally for short to ground.

• Short circuit to ground between:
  X125 Underhood Electronic Module
  Socket Terminal 21 (XE3)
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 51 (XC2)
  &
  A40 Ignition Coil - Direct Ignition
  Wiring harness connector (wiring harness side) terminal 2
  &
  B69 Air Mass Meter
  Wiring harness connector (wiring harness side) terminal 2

or

• Defective component:
  X125 Underhood Electronic Module

Important:

Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.

• Defective component:
  S32 Switch - Reversing Lamp

• Short circuit to ground between:
  S32 Switch - Reversing Lamp
  Wiring harness connector (wiring harness side) terminal A
  &
  E106L.3 Reversing Lamp - Left
  Wiring harness connector (wiring harness side) terminal (Astra-H), (2 Doors) (Astra-H), (Station Wagon) 2 (Astra-H), (4 Doors) 1
  &
  E106R.3 Reversing Lamp - Right
  Wiring harness connector (wiring harness side) terminal (Astra-H), (2 Doors) (Astra-H), (Station Wagon) 5 (Astra-H), (4 Doors) 6