Lost Communication With Wireless Accessory Charging Module B

Where it lives

For U020D, the description names the module as the part involved.

Check these first

• A broken or chafed bus wire to wireless accessory charging module B
• A module B connector that is loose or corroded
• Water ingress at the charging pad or its module
• An internally failed wireless charging module B
• A power or ground fault at module B

What to do next

1. Check power and ground at wireless charging module B
2. Inspect the module B connector for corrosion or water
3. Test the bus wiring from the body computer to module B
4. Update the module calibration if a software fault is stored
5. Replace the wireless accessory charging module if it stays offline
6. Clear the code and retest

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