Drive Motor B Current Sensor Circuit Low

Where it lives

For P0A57, the sensor sits on the circuit this code reports. The description of P0A57 reports a fault at the sensor.

Check these first

• A drive motor B current sensor reading low
• Corrosion at the sensor connector
• A failing drive motor B
• A weak battery that starves the sensor

What to do next

1. Read drive motor B current sensor voltage on a scan tool
2. Inspect the connector for corrosion
3. Test the sensor circuit for an open
4. Check drive motor B for a fault
5. Replace the sensor if the signal stays low
6. Clear the code and retest

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