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 fuse FE24 and then check the fuse for proper operation.

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition ON
• Check the following component for proper operation:
  FE24 Fuse

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Remove electrical component from socket:
  K10_X125 Relay - Fuel Pump
• Connect fused jumper wire to:
  K10_X125 Relay - Fuel Pump
  Socket Terminal 87
  &
  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:
  M1_M8 Pump - Fuel
• Insert new fuse into the socket of the fused jumper wire and then check this fuse for proper operation.

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Remove fused jumper wire
• Remove electrical component from socket:
• X125 Underhood Electronic Module
• Connect fused jumper wire to:
  X125 Underhood Electronic Module
  Socket Terminal 32 (XE3)
  &
  Battery voltage
• Insert new fuse into the socket of the fused jumper wire and then check this fuse for proper operation.

Test okay?

Check: Short to Ground of Voltage Supply Circuit

• Disconnect wiring harness connector from:
  L2A Injection Valve - Cylinder 1
• 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:
  L2B Injection Valve - Cylinder 2
  L2C Injection Valve - Cylinder 3
  L2D Injection Valve - Cylinder 4

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Remove electrical component from socket:
  K10_X125 Relay - Fuel Pump
• Insert new fuse FE24 and then check the fuse for proper operation.

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FE24 has occurred

• Defective component:
  K10_X125 Relay - Fuel Pump

• Defective component:
  M1_M8 Pump - Fuel

• Short circuit to ground between:
  X125 Underhood Electronic Module
  Socket Terminal 56 (XE2)
  &
  M1_M8 Pump - Fuel
  Wiring harness connector (wiring harness side) terminal 4

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.

• 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:
  X125 Underhood Electronic Module
  Socket Terminal 32 (XE3)
  &
  L2A Injection Valve - Cylinder 1
  Wiring harness connector (wiring harness side) terminal 1
  &
  L2B Injection Valve - Cylinder 2
  Wiring harness connector (wiring harness side) terminal 1
  &
  L2C Injection Valve - Cylinder 3
  Wiring harness connector (wiring harness side) terminal 1
  &
  L2D Injection Valve - Cylinder 4
  Wiring harness connector (wiring harness side) terminal 1

• The selected Checking Procedure is not valid for this vehicle configuration.

• 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.