Internal Control Module Drive Motor/Generator - Engine Speed Sensor Performance

Where it lives

For P0C2F, the part to look at first is the sensor named here.

Check these first

• An engine speed sensor reading off its expected value
• Wiring or connection problems between the sensor and the control module
• A motor/generator fault skewing the speed signal
• A control module that is misreading the signal

What to do next

1. Read the engine speed sensor and motor speed on a scan tool
2. Compare the engine speed to the motor/generator speed
3. Inspect the engine speed sensor wiring and connector
4. Check the motor/generator for a fault
5. Replace the control module if the signals test good
6. Clear the code and retest

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