Lost Communication With Lighting Control Module - Rear A

Where it lives

For U0183, start at the module the description names.

Check these first

• Wiring or connector damage at the rear lighting control module A
• A failed rear lighting control module A
• Corrosion or water at the rear module A
• A short or overload that damaged the rear module A circuit
• A software or programming fault in rear module A

What to do next

1. Inspect the rear lighting control module A harness for damage
2. Check rear module A for water or physical damage
3. Scan rear module A for software or programming faults
4. Check the power and ground feeds to rear module A
5. Replace the rear lighting control module A if faulty
6. Clear the code and retest

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