Hybrid/EV Battery Pack Current Sensor A Circuit High

Where it lives

For P0AC2, the circuit described runs through the sensor. The description of P0AC2 reports a fault at the sensor.

Check these first

• A failed hybrid battery pack current sensor A
• Corrosion or damage at the sensor wiring
• High resistance in the sensor circuit
• Corrupted sensor calibration data

What to do next

1. Read battery pack current sensor A data on a scan tool
2. Inspect the sensor A wiring and connector
3. Measure resistance in the sensor circuit
4. Reflash the control module to restore calibration
5. Replace the sensor if the signal stays high
6. Clear the code and retest

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