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 FE30 and then check the fuse for proper operation.

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Component

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector XC2 )
• Ignition ON
• Insert new fuse FE30 and then check the fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  A40 Ignition Coil - Direct Ignition
  B69 Air Mass Meter

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Component

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector (Z 16 XEP) (Z 16 XE1) XC10 (Z 18 XE) (Z 18 XER) XC4 (Z 22 YH) XC55 (Z 16 XER) XC100 )
• Ignition ON
• Insert new fuse FE30 and then check the fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  A40 Ignition Coil - Direct Ignition

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector XC8 )
• Ignition ON
• Insert new fuse FE30 and then check the fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  A40 Ignition Coil - Direct Ignition
  C5 Capacitor - Ignition Coil
  Y142 Solenoid Valve - Boost Pressure Regulation
  B69 Air Mass Meter
  Y18 Actuator - Recirculation

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
• A84 Control Unit - Engine
  (Wiring Harness Connector (Z 17 DTL) (Z 17 DTH) XC12 (Z 19 DT) (Z 19 DTL) (Z 19 DTH) XC53 (Z 17 DTJ) (Z 17 DTR) (A 17 DTJ) (A 17 DTR) XC96 )
• Ignition ON
• Insert new fuse FE30 and then check the fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  B69 Air Mass Meter
  A147 Control Unit - Glow Time

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector XC98 )
• Ignition ON
• Insert new fuse FE30 and then check the fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  B69 Air Mass Meter
  A40 Ignition Coil - Direct Ignition
  Y142 Solenoid Valve - Boost Pressure Regulation
  Y18 Actuator - Recirculation

Test okay?

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector XC20 )
• Ignition ON
• Insert new fuse FE30 and then check the fuse for proper operation.
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the check each time:
  B69 Air Mass Meter
  B87 Sensor - Water Level, Fuel Filter
  A147 Control Unit - Glow Time

Test okay?

Result

Cause Of Fault

• A temporary current overload in the system behind fuse FE30 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.

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:
  X125 Underhood Electronic Module
  Socket Terminal 22 (XE3)
  &
  Wiring harness connector terminals of all components (wiring harness side), which were disconnected from the wiring harness during this troubleshooting session

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.

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