vauxhall Workshop Repair Guides

Vauxhall Workshop Service and Repair Manuals

C-027 No Communication with Open & Start > < C-025 No Communication with ECC

C-026 - No Communication with Mobile Phone Portal

Test

Work Order Description

Nominal Value

T001

Check: Interruption of Voltage Supply Circuit

  • Ignition OFF
  • All consumers turned off
  • Disconnect wiring harness connector from:
    A176 Control Unit - Voice Controlled Telephone
    &
    Diagnostic tester
  • Ignition ON
    Measure voltage between the following terminals:
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 32
    &
    Ground

greater than 11 V

Voltage Measurement Current Value: V
Yes: No:
T002

Check: Circuit Interruption of Ground Circuit

  • Measure voltage between the following terminals:
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 16
    &
    Battery voltage

greater than 11 V

Voltage Measurement Current Value: V
Yes: No:
T003

Check: Interruption of Signal Circuit

  • Connect wiring harness connector to:
    P6 Info Display
  • Measure resistance between the following terminals:
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 29
    &
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 30

110 ... 130 Ohm

Resistance Measurement Current Value: Ohm
Yes: No:
T004

Check: Interruption of Signal Circuit

  • Connect wiring harness connector to:
    P6 Info Display
  • Measure resistance between the following terminals:
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 29
    &
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 30

less than 110 Ohm

Resistance Measurement Current Value: Ohm
Yes: No:
T005

Check: Interruption of Signal Circuit

  • Measure resistance between the following terminals:
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 29
    &
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 30

50 ... 70 Ohm

Resistance Measurement Current Value: Ohm
Yes: No:
T006

Check: Interruption of Voltage Supply Circuit

  • Ignition OFF
  • Remove electrical component from socket:
    (Vehicle with REC (Rear Electronic Module)) FE36 (Vehicle without REC (Rear Electronic Module)) FE12 Fuse
  • Ignition ON
  • Measure voltage between the following terminals:
    (Vehicle with REC (Rear Electronic Module)) FE36 (Vehicle without REC (Rear Electronic Module)) FE12 Fuse
    Input contact
    &
    Ground
(Vehicle with REC (Rear Electronic Module))

greater than 11 V

(Vehicle without REC (Rear Electronic Module))

greater than 11 V

Voltage Measurement Current Value: V
Yes: No:


Result

Cause Of Fault

E001 Result: Defective Component
  • Defective component:
    A176 Control Unit - Voice Controlled Telephone

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
  • Defective component:
    P6 Info Display

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:
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 16
    &
    Ground
E004 Result: Interruption
  • Circuit interruption between:
    X125 Underhood Electronic Module
    Socket Terminal (Vehicle with REC (Rear Electronic Module)) 62 (XE2) (Vehicle without REC (Rear Electronic Module)) 55 (XE1)
    &
    A176 Control Unit - Voice Controlled Telephone
    Wiring harness connector (wiring harness side) terminal 32

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:
    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-027 No Communication with Open & Start > < C-025 No Communication with ECC