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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 ((Front Control Module (FCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0181-Lost Communication With Headlamp Leveling Translator (AHLM) >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2009 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

The Automatic Headlamp Leveling Module(AHLM) (also known as the Headlamp Leveling Translator) is attached to and is part of the High Intensity Discharge Lamp assembly on the right side of the vehicle. For a desription of how the system works. Refer to Electrical/Lamps/Lighting - Exterior/MODULE, Headlamp Leveling - Description