DC/DC Converter Current Sensor A Circuit High

Where it lives

For P0E54, the circuit described runs through the sensor. The description of P0E54 reports a fault at the sensor.

Check these first

• A short to voltage on the converter current sensor A signal
• An open sensor A ground lifting the signal
• A failed current sensor A reading high
• Water in the converter connector

What to do next

1. Read the DC/DC converter current sensor A on a scan tool
2. Check the sensor A signal for a short to voltage
3. Verify the sensor A ground
4. Inspect the converter connector for water and corrosion
5. Service the converter if the signal stays high
6. Clear the code and retest

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