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C-003 Pedal Position Sensor Circuit > < C-001 Engine Start Signal Circuit

Astra H

C-002 - Control Unit Main Relay Circuit

Test

Work Order Description

Nominal Value
T001

Check: Interruption of Voltage Supply Circuit
  • Ignition OFF
  • Remove electrical component from socket:
    K2_X125 Relay - Engine Control Unit
  • Measure voltage between the following terminals:
    K2_X125 Relay - Engine Control Unit
    Socket Terminal 86, 30
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T002

Check: Short to Voltage of Signal Circuit
  • Ignition ON
  • Measure voltage between the following terminals:
    K2_X125 Relay - Engine Control Unit
    Socket Terminal 85
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T003

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
  • Connect fused jumper wire to:
  • K2_X125 Relay - Engine Control Unit
    Socket Terminal 85
    &
    K2_X125 Relay - Engine Control Unit
    Socket Terminal 86
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 37 (XC55)
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T004

Check: Component
  • Remove fused jumper wire
  • Insert electrical component in socket:
    K2_X125 Relay - Engine Control Unit
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 37 (XC55)
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T005

Check: Component
  • Connect fused jumper wire to:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 37 (XC55)
    &
    Ground
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 1 (XC55)
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T006

Check: Component
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 18 (XC55)
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T007

Check: Component
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 33 (XC55)
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T008

Check: Component
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 50 (XC55)
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T009

Check: Component
  • Remove fused jumper wire
  • Connect fused jumper wire to:
    K2_X125 Relay - Engine Control Unit
    Socket Terminal 87
    &
    Battery voltage
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 1 (XC55)
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:


Result

Cause Of Fault
E001 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.
E002 Result: Defective Component
  • Circuit interruption between:
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) terminal 28 (XC3)
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 50 (XC55)

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.
E003 Result: Defective Component
  • Circuit interruption between:
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) terminal 28 (XE3)
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 33 (XC55)

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.
E004 Result: Defective Component
  • Circuit interruption between:
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) terminal 28 (XE3)
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 18 (XC55)

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.
E005 Result: Defective Component
  • Defective component:
    K2_X125 Relay - Engine Control Unit
E006 Result: Defective Component
  • Circuit interruption between:
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) terminal 28 (XE3)
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 1 (XC55)

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.
E007 Result: Defective Component
  • Defective component:
    K2_X125 Relay - Engine Control Unit
E008 Result: Defective Component
  • Short circuit to ground/interruption of circuit between:
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) terminal 16 (XE3)
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 37 (XC55)

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.
E009 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 37 (XC55)
    &
    K2_X125 Relay - Engine Control Unit
    Socket Terminal 85

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.
E010 Result: Interruption
  • Circuit interruption between:
    G1 Battery
    Wiring harness connector (wiring harness side) terminal 30
    &
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) wiring colour RD

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.

Note:

Wiring colours: BK=Black, BN=Brown, BU=Blue, GD=Gold, GN=Green, GY=Grey, OG=Orange, PK=Pink, RD=Red, SR=Silver, TQ=Turquoise, VT=Violet, WH=White, YE=Yellow,
L=Light, D=Dark






C-003 Pedal Position Sensor Circuit > < C-001 Engine Start Signal Circuit