Drive Motor A Phase Y Current Sensor Circuit Low

Where it lives

For P2E21, the circuit described runs through the sensor. The description of P2E21 reports a fault at the sensor.

Check these first

• A short to ground on the drive motor A phase Y sensor wire
• A failed phase Y current sensor
• Corrosion at the phase Y sensor connector
• A chafed phase Y harness
• A faulty inverter current input

What to do next

1. Read drive motor A phase Y current on a scan tool
2. Inspect the phase Y sensor wire for a short to ground
3. Check the phase Y connector
4. Test the phase Y current sensor
5. Replace the sensor if the current stays low
6. Clear the code and retest

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