Checking the engine control module (ECM)

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

Fig 1: Identifying Ignition ON

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Fig 2: Identifying Connector(s) Reinstallation

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

  Does the diagnostic trouble code (DTC) for faulty communication return?

  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the diagnostic trouble code (DTC) recur? 

• YES 

  Refer to Information 

• NO 

  OKAY:  Troubleshooting has been completed.