Faulty communication: Verification

HINT: After carrying out the repair, check that the fault has been remedied. 

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Reinstall the connectors, components, etc.
• Ignition on
• Erase diagnostic trouble codes by clicking the VCT2000 symbol
• Start the car. Allow the car to run for 10 minutes.
• Read off diagnostic trouble codes (DTCs).

  Check if a diagnostic trouble codes (DTCs) for communication fault recurs in the central electronic module (CEM).

  Fig 2: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the diagnostic trouble code (DTC) recur? 

• YES 

  The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

  Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

• NO 

  OKAY:  Troubleshooting has been completed.