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
• Insert new component:
  FE34 Fuse
• Ignition ON
• Check the following component for proper operation:
  FE34 Fuse

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A105 Column Integrated Module
  (Wiring Harness Connector XC46 )
• Ignition ON
• Insert new fuse FE34 and then check the fuse for proper operation.

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Connect fused jumper wire to:
  A105 Column Integrated Module
  Wiring harness connector (wiring harness side) terminal 2 (XC46)
  &
  Battery voltage
• Check the following component for proper operation:
  Fuse of the fused jumper wire

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Disconnect wiring harness connector from:
  X131 Rear Electronic Module
  (Wiring Harness Connector XR5 )
• Insert new fuse into the socket of the fused jumper wire and then check this fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  X125 Underhood Electronic Module
  A37 Control Unit - Anti-Lock Brake System

Test okay?

Check: Short to Ground of Voltage Supply Circuit

Important:

Before commencing work on the restraint system:
Ignition OFF
Disconnect the ground cable from battery and mask the negative terminal.
Wait 1 minute until the capacitor in the airbag control unit has discharged.
When commencing work on pyrotechnic seat belt tensioners, it is sufficient to switch the ignition off.

• Ignition OFF
• Disconnect wiring harness connector from:
  A63 Control Unit - Airbag
  (Wiring Harness Connector XC18 )
• Insert new fuse into the socket of the fused jumper wire and then check this fuse for proper operation.

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FE34 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.

• Defective component:
  A105 Column Integrated 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.

Note:

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

• 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.

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.

• Short circuit to ground between:
  A105 Column Integrated Module
  Wiring harness connector (wiring harness side) terminal 2 (XC46)
  &
  Wiring harness connector terminals of all components (wiring harness side), which were disconnected from the wiring harness during this troubleshooting session

• Short circuit to ground between:
  X125 Underhood Electronic Module
  Socket Terminal 42 (XE2)
  &
  A105 Column Integrated Module
  Wiring harness connector (wiring harness side) terminal 1 (XC46)

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.