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
• Engine running
• Rear window heating ON
• Insert new fuse FR11 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:
  R22 Heated Back Window
• Ignition ON
• Engine running
• Rear window heating ON
• Insert new fuse FR11 and then check the fuse for proper operation.

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FR11 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.

• Short circuit to ground between:
  X131 Rear Electronic Module
  Wiring harness connector (wiring harness side) terminal 4 (XR2)
  &
  R22 Heated Back Window
  Wiring harness connector (wiring harness side) wiring colour BK

or

• 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.

Note:

Wiring colours: BK=Black, BN=Brown, BU=Blue, GD=Gold, GN=Green, GY=Grey, OG=Orange, PK=Pink, RD=Red, SR=Silver, TQ=Turquoise, VT=Violet, WH=White, YE=Yellow,
L=Light, D=Dark