P1C9B
Gear Shift Position Sensor 2 Circuit High
P1C9B is an OBD-II diagnostic trouble code meaning: Gear Shift Position Sensor 2 Circuit High. Common causes: shift position sensor 2 malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Incorrect display of the current gear on the dashboard
- Gear shifting problems
- Transmission of the gearbox into emergency mode
- The Check Engine light comes on
- Reduced vehicle dynamics
Causes
- Shift position sensor 2 malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Wiring harness damage
- Transmission control module malfunction
How to Fix
- Check the continuity of the gear shift position sensor 2 circuit
- Inspect the connectors and contacts of the sensor for oxidation or damage
- Check sensor resistance according to manufacturer specifications
- If necessary, replace shift position sensor 2
- Check and, if necessary, reflash the transmission control module
Related codes
FAQ
What does the P1C9B code mean?
P1C9B is an OBD-II diagnostic trouble code that indicates: Gear Shift Position Sensor 2 Circuit High
What causes a P1C9B error code?
The most common causes of P1C9B include: Shift position sensor 2 malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Wiring harness damage.
How do I fix a P1C9B diagnostic trouble code?
To fix P1C9B: Check the continuity of the gear shift position sensor 2 circuit. Inspect the connectors and contacts of the sensor for oxidation or damage. Check sensor resistance according to manufacturer specifications. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1C9B?
Limited driving only, diagnose soon
How much does it cost to fix P1C9B?
The estimated repair cost for P1C9B is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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