Operation CHARM: Car repair manuals for everyone.
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Headlamp Control Module: Service and Repair




Headlamp Control Module (HCM)









Removal and Installation

1. If installing a new Headlamp Control Module (HCM), upload the module configuration information to the scan tool. For additional information, refer to Information Bus.

2. Disconnect the HCM electrical connector.

3. Remove the 2 pin-type retainers and the HCM.

4. To install, reverse the removal procedure.
- If installing a new HCM, download the HCM configuration information from the scan tool into the new HCM. For additional information, refer to Programmable Module Installation (PMI)
Information Bus. Programming and Relearning