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:
  FE3 Fuse
• Ignition ON
• Switch fan to maximum speed.
• Check the following component for proper operation:
  FE3 Fuse

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  Y1_A13 Blower Regulator
• Ignition ON
• Insert new fuse FE3 and then check the fuse for proper operation.

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FE3 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:
  M1_A13 Motor - Blower, Passenger Compartment
  or
  Y1_A13 Blower Regulator

Note:

The replacement of the components must be done in the listed order.

The system must be checked for proper operation after every replacement.

• Short circuit to ground between:
  X125 Underhood Electronic Module
  Socket Terminal 31 (XE2)
  &
  Y1_A13 Blower Regulator
  Wiring harness connector (wiring harness side) terminal 1

or

• Defective component:
  X125 Underhood Electronic Module

Note:

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.