DC/DC Converter Current Sensor C Circuit Intermittent/Erratic

Where it lives

For P0EA4, the circuit described runs through the sensor. The description of P0EA4 reports a fault at the sensor.

Check these first

• A current sensor C connector losing contact
• Chafed wiring in the current sensor C harness
• A current sensor C drifting with temperature
• Intermittent converter output

What to do next

1. Road test and watch DC/DC converter current sensor C
2. Wiggle test the sensor C connector and harness
3. Measure the sensor C signal under load
4. Check the converter output for fluctuation
5. Replace the current sensor C if the signal drops
6. Clear the code and retest

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