Drive Motor A Phase V Current High

Check these first

• A short circuit in the V phase winding of drive motor A
• A short to ground or phase to phase in the V phase cable
• Insulation breakdown inside drive motor A
• A stuck or failed inverter transistor on the V phase
• High phase resistance from a loose V phase terminal

What to do next

1. Inspect the V phase cable and terminals for damage
2. Test the V phase winding to ground with a megohmmeter
3. Compare V phase current with U and W under load
4. Check the V phase terminal for heat or corrosion
5. Replace the inverter if the V phase transistor is shorted
6. Clear the code and retest

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