Checking The Engine Control Module (ECM)

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

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS CORPORATION

Fig 2: Connecting Connector

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• Ignition off
• Reinstall the connectors, components etc.
• Erase diagnostic trouble codes using the VCT2000 (or appropriate scan tool)
• 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 CORPORATION

Does the diagnostic trouble code (DTC) recur? 

• YES 

  Refer to INFORMATION 

• NO 

  OKAY:  Troubleshooting has been completed.