Lost Communication With Hybrid/EV Battery Interface Control Module N

Where it lives

For U01AD, the description names the module as the part involved.

Check these first

• A software or calibration error in interface module N
• A failed hybrid battery interface control module N
• Corroded or damaged pins at interface module N
• Loss of power or ground at interface module N
• Interface module N not talking on the CAN bus

What to do next

1. Inspect the interface module N connector pins for corrosion
2. Check power and ground at interface module N
3. Verify interface module N answers on the CAN bus
4. Reprogram the control module if calibration is the cause
5. Replace hybrid battery interface control module N if it stays offline
6. Clear the code and retest

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