PINPOINT TEST N : The Headlamp Control Module (HCM) Does Not Respond To The Diagnostic Scan Tool: Notes
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Module Communications Network for schematic and connector information.
Refer to Headlamps/Autolamps for schematic and connector information.
Normal Operation and Fault Conditions
The HCM communicates with the diagnostic scan tool through the HS-CAN.
Visual Inspection and Diagnostic Pre-checks
Verify BJB fuse 55 (15A) is OK.