DC/DC Converter Temperature Sensor B Intermittent/Erratic

Where it lives

For P0C41, the part to look at first is the sensor named here.

Check these first

• A sensor B connector losing contact
• Chafed sensor B wiring in the harness
• Electrical noise on the sensor B signal
• A DC/DC converter running hot

What to do next

1. Road test and watch DC/DC converter temperature sensor B
2. Wiggle test the sensor B connector and harness
3. Check the sensor B shielding and grounds
4. Check the converter for overheating
5. Replace sensor B if the signal breaks up
6. Clear the code and retest

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