DC/DC Converter Temperature Sensor C Circuit High

Where it lives

For P0E5B, the circuit described runs through the sensor. The description of P0E5B reports a fault at the sensor.

Check these first

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

What to do next

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

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