P1C9F
Gear Shift Position Sensor 3 Circuit High
P1C9F is an OBD-II diagnostic trouble code meaning: Gear Shift Position Sensor 3 Circuit High. Common causes: shift position sensor 3 malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Incorrect display of gear lever position
- Gear shifting problems
- Transmission transition to emergency mode
- The Check Engine light comes on
- Reduced vehicle dynamics
Causes
- Shift position sensor 3 malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Problems with the transmission control module
- Corroded contacts or damaged wiring harness
How to Fix
- Check the integrity of the sensor wiring and connectors
- Measure resistance and voltage at the sensor
- Check the operation of the sensor using a scanner
- Replace faulty gear position sensor
- Flash or replace the transmission control module if necessary
Related codes
FAQ
What does the P1C9F code mean?
P1C9F is an OBD-II diagnostic trouble code that indicates: Gear Shift Position Sensor 3 Circuit High
What causes a P1C9F error code?
The most common causes of P1C9F include: Shift position sensor 3 malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Problems with the transmission control module.
How do I fix a P1C9F diagnostic trouble code?
To fix P1C9F: Check the integrity of the sensor wiring and connectors. Measure resistance and voltage at the sensor. Check the operation of the sensor using a scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1C9F?
Limited driving only, diagnose soon
How much does it cost to fix P1C9F?
The estimated repair cost for P1C9F is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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