vauxhall Workshop Repair Guides

Vauxhall Workshop Service and Repair Manuals

ABOUT US
C-028 Fuel Rail Pressure Control Valve Circuit > < C-026 Swirl Level Control Circuit

Astra H

C-027 - Fuel High Pressure Sensor Circuit

Test

Work Order Description

Nominal Value
T001

Check: Short to Voltage/Ground of Voltage Supply Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    B54 Sensor - Fuel Pressure
  • Ignition ON
  • Measure voltage between:
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

4.8 ... 5.2 V
Voltage Measurement Current Value: V
Yes: No:
T002

Check: Circuit Interruption of Ground Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
  • Measure resistance between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 43 (XC54)
    &
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 1

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T003

Check: Short to Voltage/Ground/Interruption of Signal Circuit
  • Connect wiring harness connector to:
    A84 Control Unit - Engine
  • Ignition ON
  • Measure voltage between the following terminals:
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

4.8 ... 5.2 V
Voltage Measurement Current Value: V
Yes: No:
T004

Check: Component
  • Diagnostic Tester Data List Parameter
    Fuel Pressure Feedback

Note:

This data list parameter is in the data list 2 .

4.8 ... 5.2 V
Diagnostic Tester Data List Parameter Current Value:
Yes: No:
T005

Check: Component
  • Ignition OFF
  • Connect fused jumper wire to:
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 2
    &
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 1
  • Ignition ON
  • Diagnostic Tester Data List Parameter
    Fuel Pressure Feedback

Note:

This data list parameter is in the data list 2 .

less than 0.3 V
Diagnostic Tester Data List Parameter Current Value:
Yes: No:


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    Y143 Solenoid Valve - Fuel Pressure Regulation
E002 Result: Defective Component
  • Defective component:
    A84 Control Unit - Engine

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.
E003 Result: Short to Voltage/Ground/Interruption
  • Short to voltage/ground/interruption of circuit between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 28 (XC54)
    &
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 2

or

  • Defective component:
    A84 Control Unit - Engine

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.
E004 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 43 (XC54)
    &
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 1
E005 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 19 (XC54)
    &
    B54 Sensor - Fuel Pressure
    Wiring harness connector (wiring harness side) terminal 3





C-028 Fuel Rail Pressure Control Valve Circuit > < C-026 Swirl Level Control Circuit