Alternator Control Module (ACM), Faulty Communication (2008-2010): Verification: Verification

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

Fig 1: Engine Start Verification

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Fig 2: Checking Connector

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• Ignition off
• Reconnect the connectors, reinstall components etc.
• Start the engine
• Read off the battery voltage and the target value of the generator (GEN) charge voltage
• Load the battery by switching on high current consumers such as high beam and the blower fan etc.

  Check that the battery voltage is approximately 13.5-14.9 V. Check that the battery voltage is approximately the same as the target value for the generator (GEN) charge. Try different engine speeds (RPM).

  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA (Volvo Scan Tool)

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Is the function OK? 

• YES 

  VERIFIED:  Troubleshooting has been completed.

• NO 

  Refer to INFORMATION