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:
  FR40 Fuse
• Ignition ON
• Actuate the following switch:
  S270.7 Switch - Seat Heating, Front Passenger
• Check the following component for proper operation:
  FR40 Fuse

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector:
  X49 Body & Assembly - Seat, Front Passenger
• Ignition ON
• Insert new fuse FR40 and then check the fuse for proper operation.

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FR40 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:
  A77 Control Unit - Seat Heating, Front Passenger

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.

• Short circuit to ground between:
  X131 Rear Electronic Module
  Wiring harness connector (wiring harness side) terminal 22 (XR4)
  &
  X49 Body & Assembly - Seat, Front Passenger
  Wiring harness connector (female side) terminal 8

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.