Lost Communication With Drive Motor Control Module D

Where it lives

For U029C, the description names the module as the part involved.

Check these first

• A damaged harness between drive motor control module D and the onboard computer
• Corrosion or water in the module connectors
• A failed drive motor control module D
• Outdated firmware in the module or onboard computer
• Physical damage to the module

What to do next

1. Inspect the harness and connector at drive motor control module D
2. Check the module for water or corrosion
3. Update the firmware in the module and onboard computer
4. Look for physical damage at the module
5. Replace drive motor control module D if it stays silent
6. Clear the code and retest

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