Jeep U1221: Lost Communication With Left Headlamp Module

Is your scanner showing Jeep U1221?
No worries. We'll show you what it means and how to deal with it.

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OBDCodex, Editor

Jeep U1221: Lost Communication With Left Headlamp Module

DIY Difficulty Level
Repair Cost
Can I Still Drive?
Yes (Short-term only)

What Does The Jeep U1221 Code Mean?

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

What Are The Potential Causes Of The Jeep U1221 Code?

Left Front Lamp Assembly

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> 12V Auto Waterproof Fuse Relay Box Block Kit
>>> Jeep Headlamp

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Jeep U1221, DTCDECODE.

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