Checking Headlight Control Module (HCM)

Fig 1: Identifying Ignition On Position

Courtesy of VOLVO CARS CORPORATION

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

• Ignition off.
• Reinstall the connectors, components etc.
• Ignition on.

Obtain the ID of the headlight control module (HCM) using the VCT2000 (or appropriate scan tool).

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS CORPORATION

Could the control module ID be read off? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to INFORMATION