P0C1F
Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit High
What it means
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.
Is it safe to drive?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Sensor shorted to higher voltage
highOne of the most commonly reported causes for this code — check this first.
Open sensor
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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