U0180
Lost Communication With Automatic Lighting Control Module
U0180 is an OBD-II diagnostic trouble code meaning: Lost Communication With Automatic Lighting Control Module. Common causes: open or short circuit in the can bus circuit, automatic lighting module malfunction. Estimated repair cost: $33–167.
Symptoms
- Automatic lighting does not work
- Headlights turn on only in manual mode
- Side lights do not turn on automatically
- Error message on the dashboard
- Flashing headlights when the engine is running
Causes
- Open or short circuit in the CAN bus circuit
- Automatic lighting module malfunction
- Problems with the wiring harness to the module
- Oxidation of contacts in connectors
- Software error in the ECU
How to Fix
- Check the integrity of wires and connectors
- Diagnose the CAN bus for errors
- Check the power supply to the automatic lighting module
- Replace the module if a fault is detected
- Update ECU software if necessary
Related codes
Error U0180 by Vehicle Brand
FAQ
What does the U0180 code mean?
U0180 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Automatic Lighting Control Module
What causes a U0180 error code?
The most common causes of U0180 include: Open or short circuit in the CAN bus circuit; Automatic lighting module malfunction; Problems with the wiring harness to the module; Oxidation of contacts in connectors.
How do I fix a U0180 diagnostic trouble code?
To fix U0180: Check the integrity of wires and connectors. Diagnose the CAN bus for errors. Check the power supply to the automatic lighting module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0180?
Limited driving only, diagnose soon
How much does it cost to fix U0180?
The estimated repair cost for U0180 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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