P18C5
Gear Position Sensor Circuit 1 High Voltage
P18C5 is an OBD-II diagnostic trouble code meaning: Gear Position Sensor Circuit 1 High Voltage. Common causes: gear position sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Incorrect gear shifting
- Transmission transition to emergency mode
- Check Engine light comes on
- Reduced vehicle dynamics
- Difficulties when shifting gears
Causes
- Gear position sensor malfunction
- Open or short circuit in the sensor circuit
- Wiring Harness Problems
- Transmission control unit malfunction
- Corrosion of contacts or connectors
How to Fix
- Check the condition of the gear position sensor
- Check the integrity of the circuit and wiring harness
- Check contacts and connectors for corrosion
- Replace the gear position sensor if necessary
- Check and, if necessary, replace the transmission control unit
Related codes
FAQ
What does the P18C5 code mean?
P18C5 is an OBD-II diagnostic trouble code that indicates: Gear Position Sensor Circuit 1 High Voltage
What causes a P18C5 error code?
The most common causes of P18C5 include: Gear position sensor malfunction; Open or short circuit in the sensor circuit; Wiring Harness Problems; Transmission control unit malfunction.
How do I fix a P18C5 diagnostic trouble code?
To fix P18C5: Check the condition of the gear position sensor. Check the integrity of the circuit and wiring harness. Check contacts and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P18C5?
Limited driving only, diagnose soon
How much does it cost to fix P18C5?
The estimated repair cost for P18C5 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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