P0C1F
Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit High
The internal temperature sensor reports voltage above the expected window. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
The internal temperature sensor reports voltage above the expected window. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Common causes
- high
Sensor shorted to higher voltage
One of the most commonly reported causes for this code — check this first.
Typical part cost: $440-2750
- medium
Open sensor
A plausible cause — test and verify before replacing parts.
Typical part cost: $440-2750
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P0C1F mean?
P0C1F means "Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit High". It is a generic OBD-II code that points to a fault in the hybrid / ev powertrain.
What are the most common causes of P0C1F?
sensor shorted to higher voltage; open sensor; connector pins corroded - high contact resistance — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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