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Home >> Jeep >> 2018 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> External Pages >> Different car >> Section 563 ((Adaptive Front Lighting System Module - Electrical Diagnostics)) >> DTC Troubleshooting >> U1221-00-Lost Communication With Left Headlamp Module >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2017 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

The Adaptive Front Lighting System (AFLS) Module cannot communicate with the Left Headlamp Module over the LIN Bus.

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