Lost Communication With Door Control Module F

Where it lives

For U0204, the description names the module as the part involved.

Check these first

• A failed door control module F
• A short, open, or corrosion in the door module F wiring
• A software fault in the PCM or door module F
• A corroded connector between the PCM and door module F
• A data bus fault on the door module F network

What to do next

1. Inspect the wiring between the PCM and door control module F
2. Check the door control module F connector for corrosion
3. Check power and ground at door control module F
4. Scan for software updates for the PCM or door module F
5. Replace door control module F if it stays offline
6. Clear the code and retest

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