Sensor Power Supply C Circuit High

Where it lives

For P06E8, the sensor sits on the circuit this code reports. The description of P06E8 reports a fault at the sensor.

Check these first

• A short to voltage in the sensor power C circuit
• A faulty ECM regulator
• A sensor drawing excessive current
• Corroded supply C wiring
• A charging system overvoltage

What to do next

1. Monitor the sensor power C voltage live
2. Check the circuit for a short to power
3. Unplug sensors on supply C one at a time
4. Check charging voltage
5. Repair the wiring or replace the ECM
6. Clear the code and retest

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