Lost Communication with Mirror Control Module B

Where it lives

For U014D, the description names the module as the part involved.

Check these first

• A failed Mirror Control Module B
• Damaged wiring to the mirror module on the B side
• Corroded pins in the Mirror Control Module B connector
• Loss of power or ground at Mirror Control Module B
• A CAN bus fault dropping the mirror module off the network

What to do next

1. Check power and ground at Mirror Control Module B
2. Inspect the wiring to the mirror control module for damage
3. Check the module connector pins for corrosion
4. Verify the mirror module responds on the bus
5. Replace Mirror Control Module B if it is dead
6. Clear the code and retest

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