P0852 GMC Code - Park/Neutral Position Switch Circuit High Voltage
Quick Answer
The P0852 diagnostic trouble code for GMC vehicles indicates a problem with the Park/Neutral Position (PNP) switch circuit having high voltage. Common causes include Faulty Park/Neutral Position switch, Damaged wiring or connectors in the PNP switch circuit, Corrosion in the electrical connections. 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
- P0852 GMC indicates Park/Neutral Position Switch Circuit High Voltage.
- Common causes
- Common causes include Faulty Park/Neutral Position switch, Damaged wiring or connectors in the PNP switch circuit, Corrosion in the electrical connections.
- 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 P0852 GMC Description
The P0852 diagnostic trouble code for GMC vehicles indicates a problem with the Park/Neutral Position (PNP) switch circuit having high voltage. The PNP switch, also known as the neutral safety switch, is a crucial component that ensures the vehicle can only be started in Park or Neutral gear. It plays a vital role in preventing the engine from starting in any other gear, thus ensuring safety and preventing accidents.
Common Causes of P0852 GMC
- Faulty Park/Neutral Position switch
- Damaged wiring or connectors in the PNP switch circuit
- Corrosion in the electrical connections
- Issues with the transmission control module
- Electrical issues such as a short circuit or open circuit in the wiring
Symptoms of P0852 GMC
- Difficulty starting the vehicle
- Engine starting in gear other than Park or Neutral
- Inability to shift gears properly
- Check Engine Light illuminated on the dashboard
How to Fix P0852 GMC
- Perform a thorough inspection of the PNP switch, wiring, and connectors to identify any visible damage or corrosion.
- Test the PNP switch using a multimeter to check for proper functionality.
- Replace the PNP switch if it is found to be faulty.
- Repair or replace any damaged wiring or connectors in the circuit.
- Clear the diagnostic trouble codes using a scan tool and perform a test drive to ensure the issue has been resolved.
Cost to Fix P0852 GMC
The cost of repairing a P0852 GMC code can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the cost of replacing a Park/Neutral Position switch can range from $100 to $300, including parts and labor. Additional costs may apply if there are other underlying issues that need to be addressed. It is recommended to consult with a professional mechanic for an accurate cost estimate based on your specific vehicle and location.
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Information for Specific GMC Models
- P0852 2014 GMC Sierra — Park/Neutral Position Switch Circuit High Voltage
- P0852 2015 GMC Sierra — Park/Neutral Position Switch Circuit High Voltage
- P0852 2016 GMC Sierra — Park/Neutral Position Switch Circuit High Voltage
- P0852 2017 GMC Sierra — Park/Neutral Position Switch Circuit High Voltage
- P0852 2018 GMC Sierra — Park/Neutral Position Switch Circuit High Voltage
Frequently Asked Questions about P0852 GMC Code
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