P0971
PowertrainTransmission Solenoidmoderate severityPressure Control Solenoid C Control Circuit Low
What P0971 Means
The transmission control module detected a low voltage condition in the pressure control solenoid C control circuit. Low pressure control can cause improper clutch or band apply.
Symptoms
- Harsh shifting
- Slipping gears
- Warning light illuminated
Common Causes
- Short to ground in wiring
- Faulty pressure control solenoid C
- Corroded connector
- Failed transmission control module
Diagnostic Steps
- Retrieve stored codes
- Inspect wiring for shorts to ground
- Measure solenoid voltage and resistance
- Replace solenoid C if defective
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