P0A90
Drive Motor A Performance
What it means
P0A90 means Drive Motor A Performance.
Check these first
- Worn motor A bearings
- Motor A overheating from a coolant leak or clogged passage
- A motor control module fault
- Physical damage to motor A
What to do next
- Read drive motor A data on a scan tool
- Listen for bearing noise from motor A
- Check motor A cooling for leaks or blockages
- Inspect motor A for physical damage
- Replace motor A if performance is off spec
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.