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C-030 Vehicle Speed Input Signal Circuit > < C-028 Waste Gate Valve Circuit

Astra H

C-029 - Turbocharger Bypass Solenoid Valve Circuit

Test

Work Order Description

Nominal Value
T001

Check: Interruption of Voltage Supply Circuit
  • Ignition OFF
  • Remove electrical component from socket:
    K3_X125 Relay - Terminal 15
  • Disconnect wiring harness connector from:
    Y18 Actuator - Recirculation
  • Connect fused jumper wire to:
    K3_X125 Relay - Terminal 15
    Socket Terminal 87
    &
    Battery voltage
  • Measure voltage between the following terminals:
    Y18 Actuator - Recirculation
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

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

Check: Short to Voltage of Voltage Supply Circuit
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
  • Ignition ON
  • Measure voltage between the following terminals:
    Y18 Actuator - Recirculation
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

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

Check: Component
  • Ignition OFF
  • Connect wiring harness connector to:
    Y18 Actuator - Recirculation
  • Ground the following terminal briefly several times:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 50 (XC99)

Clicking noise from following component:

Y18 Actuator - Recirculation
Yes: No:
T004

Check: Mechanical Functionality
  • Check mechanical functionality of the following components and all attached parts:
    Y18 Actuator - Recirculation

Mechanical function check okay?
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: Mechanical Fault
  • Repair the concerned circuit/component.
E003 Result: Short to Ground/Interruption
  • Short circuit to ground/interruption of circuit between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 50 (XC99)
    &
    Y18 Actuator - Recirculation
    Wiring harness connector (wiring harness side) terminal 2

or

  • Defective component:
    Y18 Actuator - Recirculation
E004 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 50 (XC99)
    &
    Y18 Actuator - Recirculation
    Wiring harness connector (wiring harness side) terminal 2
E005 Result: Interruption
  • Circuit interruption between:
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) terminal 22 (XE3)
    &
    Y18 Actuator - Recirculation
    Wiring harness connector (wiring harness side) terminal 1

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.





C-030 Vehicle Speed Input Signal Circuit > < C-028 Waste Gate Valve Circuit