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
• Insert new fuse FR36 and then check the fuse for proper operation.

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Remove electrical component from socket:
  A2_X131 Trailer Electronic Module
• Insert new fuse FR36 and then check the fuse for proper operation.

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FR36 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.

• Short circuit to ground between:
  A2_X131 Trailer Electronic Module
  Wiring harness connector (wiring harness side) terminal 10 (XR7)
  &
  X38 Trailer Socket
  Wiring harness connector terminal 9

or

• Defective component:
  A2_X131 Trailer 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:
  X131 Rear 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.