P0850 2014 GMC Sierra Code - Park/Neutral Position Switch Circuit
Quick Answer
The P0850 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Park/Neutral Position (PNP) switch circuit. Common causes include Faulty PNP switch, Damaged wiring or connectors in the PNP switch circuit, Corrosion or debris affecting the PNP switch operation. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0850 2014 GMC Sierra indicates Park/Neutral Position Switch Circuit.
- Common causes
- Common causes include Faulty PNP switch, Damaged wiring or connectors in the PNP switch circuit, Corrosion or debris affecting the PNP switch operation.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0850 2014 GMC Sierra Description
The P0850 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Park/Neutral Position (PNP) switch circuit. The PNP switch, also known as the transmission range sensor, is a crucial component that informs the vehicle's computer system about the gear position (Park, Neutral, Drive, etc.). This information is essential for various vehicle functions, such as starting the engine, shifting gears, and activating safety features like the backup camera and cruise control.
Common Causes of P0850 2014 GMC Sierra
- Faulty PNP switch
- Damaged wiring or connectors in the PNP switch circuit
- Corrosion or debris affecting the PNP switch operation
- Electrical issues in the transmission control module
- Software glitches in the vehicle's computer system
Symptoms of P0850 2014 GMC Sierra
- Difficulty starting the vehicle
- Inability to shift gears
- Vehicle stalling or shutting off unexpectedly
- Check Engine Light illuminated on the dashboard
How to Fix P0850 2014 GMC Sierra
- Begin by connecting a diagnostic scanner to the vehicle's onboard computer to retrieve the specific trouble code (P0850) and any related codes.
- Inspect the PNP switch and its wiring for any visible damage, corrosion, or loose connections. Replace or repair any damaged components as needed.
- Test the PNP switch using a multimeter to ensure it is functioning correctly. Adjust or replace the switch if necessary.
- Clear the trouble codes from the vehicle's computer memory using the diagnostic scanner.
- Test drive the vehicle to verify that the issue has been resolved and the Check Engine Light no longer illuminates.
Cost to Fix P0850 2014 GMC Sierra
The typical repair costs for addressing a P0850 code on a 2014 GMC Sierra can vary depending on the extent of the issue and the specific parts and labor required. In general, the cost of replacing a faulty PNP switch and addressing related wiring or connector issues can range from $150 to $400. Additional costs may apply if other components need to be replaced or if the repair process is more complex.
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