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C-025 Glow Time Relay Circuit > < C-023 Exhaust Gas Recirculation Valve Circuit

Astra H

C-024 - Exhaust Gas Recirculation Sensor Circuit

Test

Work Order Description

Nominal Value
T001

Check: Diagnostic Trouble Code stored

Is the following Diagnostic Trouble Code stored?

P1400

Exhaust Gas Recirculation Valve Stuck
Diagnostic Tester Diagnostic Trouble Code Current Value:
Yes: No:
T002

Check: Interruption of Voltage Supply Circuit
  • Disconnect wiring harness connector from:
    Y56 Solenoid Valve - Exhaust Gas Recirculation
  • Ignition ON
  • Measure voltage between the following terminals:
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

4.8 ... 5.2 V
Voltage Measurement Current Value: V
Yes: No:
T003

Check: Circuit Interruption of Ground Circuit
  • Measure voltage between the following terminals:
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 3
    &
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 2

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

Check: Short to Voltage/Ground/Interruption of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
    (Wiring Harness Connector XC11 )
  • Ignition ON
  • Measure voltage between the following terminals:
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T005

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Measure resistance between:
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T006

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 4
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 57 (XC11)

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


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    Y56 Solenoid Valve - Exhaust Gas Recirculation
E002 Result: Defective Component
  • Defective component:
    A84 Control Unit - Engine
    or
    Y56 Solenoid Valve - Exhaust Gas Recirculation

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: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 57 (XC11)
    &
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 4
E004 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 57 (XC11)
    &
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 4
E005 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 57 (XC11)
    &
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 4
E006 Result: Short to Voltage/Interruption
  • Short circuit to voltage/interruption of circuit between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 51 (XC11)
    &
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 3

or

  • Defective component:
    A84 Control Unit - Engine

Note:

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: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 9 (XC11)
    &
    Y56 Solenoid Valve - Exhaust Gas Recirculation
    Wiring harness connector (wiring harness side) terminal 2

or

  • Defective component:
    A84 Control Unit - Engine

Note:

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-025 Glow Time Relay Circuit > < C-023 Exhaust Gas Recirculation Valve Circuit