Engine-CodesGMC – P1801 GMC

P1801 GMC Code - Performance Selector Switch Failure

Quick Answer

The P1801 GMC code indicates a Performance Selector Switch Failure in the vehicle. Common causes include Faulty performance selector switch, Wiring issues or electrical problems, Corrosion or damage to connectors. 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
P1801 GMC indicates Performance Selector Switch Failure.
Common causes
Common causes include Faulty performance selector switch, Wiring issues or electrical problems, Corrosion or damage to connectors.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1801 GMC Description

The P1801 GMC code indicates a Performance Selector Switch Failure in the vehicle. This code is typically found in vehicles equipped with automatic transmission systems that have a performance mode selector switch. The performance selector switch is responsible for allowing the driver to switch between different driving modes, such as economy, sport, or manual mode, to optimize the vehicle's performance and fuel efficiency.

OBDII Code P1801 GMC - Performance Selector Switch Failure
P1801 GMC Code - Performance Selector Switch Failure

Common Causes of P1801 GMC

  1. Faulty performance selector switch
  2. Wiring issues or electrical problems
  3. Corrosion or damage to connectors
  4. Software or programming issues in the vehicle's control module
  5. Mechanical issues within the transmission system

Symptoms of P1801 GMC

  1. Difficulty switching between driving modes
  2. Incorrect or erratic shifting patterns
  3. Loss of performance in certain driving modes
  4. Illumination of the check engine light
  5. Reduced fuel efficiency

How to Fix P1801 GMC

  1. Begin by conducting a thorough diagnostic scan to confirm the P1801 GMC code and identify the specific cause of the performance selector switch failure.
  2. Inspect the performance selector switch, wiring, and connectors for any visible damage or corrosion. Replace any damaged components as necessary.
  3. Test the performance selector switch and associated wiring using a multimeter to ensure proper functionality.
  4. If the issue persists, check for any software updates or reprogramming needed for the vehicle's control module.
  5. Finally, clear the diagnostic trouble codes and test drive the vehicle to ensure that the issue has been resolved and that the performance selector switch is functioning correctly.

Cost to Fix P1801 GMC

The typical repair costs for a Performance Selector Switch Failure can range from $200 to $500, including parts and labor. However, it's essential to note that the actual cost can vary depending on the vehicle's make and model, the location of the repair shop, and any additional components that may need to be replaced. Additionally, diagnosis time and labor rates can influence the final cost, so it's advisable to check with local auto repair shops for a more accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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