Drive Motor A Phase U-V-W Circuit/Open

Check these first

• An open in the drive motor A phase U-V-W output circuit
• A failed insulated gate bipolar transistor inside the drive motor control module
• An open or short in the starter generator control module harness
• An internal fault in the starter generator control module

What to do next

1. Read drive motor A phase data on a scan tool while cranking
2. Inspect the phase U-V-W output circuit and connectors
3. Test the phase U-V-W circuit for open and short faults
4. Compare the phase readings across the drive motor control module
5. Replace the starter generator control module if a phase stays open
6. Clear the code and retest

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