Engine-CodesGeneric – P0931

P0931 Code - Gear Shift Lock Solenoid/Actuator Control Circuit 'A' High

Quick Answer

The diagnostic trouble code P0931 indicates a problem with the Gear Shift Lock Solenoid/Actuator Control Circuit 'A' being too high. Common causes include Faulty gear shift lock solenoid/actuator, Damaged wiring or connectors in the control circuit, Corrosion or debris affecting the solenoid/actuator 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
P0931 indicates Gear Shift Lock Solenoid/Actuator Control Circuit 'A' High.
Common causes
Common causes include Faulty gear shift lock solenoid/actuator, Damaged wiring or connectors in the control circuit, Corrosion or debris affecting the solenoid/actuator 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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0931 Description

The diagnostic trouble code P0931 indicates a problem with the Gear Shift Lock Solenoid/Actuator Control Circuit 'A' being too high. This code is typically found in automatic transmission vehicles and is related to the mechanism that prevents the gear shifter from being moved out of the "Park" position without the brake pedal being pressed. The gear shift lock solenoid/actuator is responsible for releasing the shifter when the brake pedal is engaged, allowing the driver to shift into drive or reverse.

OBDII Code P0931 - Gear Shift Lock Solenoid/Actuator Control Circuit 'A' High
P0931 Code - Gear Shift Lock Solenoid/Actuator Control Circuit 'A' High

Common Causes of P0931

  1. Faulty gear shift lock solenoid/actuator
  2. Damaged wiring or connectors in the control circuit
  3. Corrosion or debris affecting the solenoid/actuator operation
  4. Electrical issues such as a blown fuse or relay
  5. Malfunctioning brake light switch

Symptoms of P0931

  1. Inability to shift out of park
  2. Shifter stuck in park position
  3. Illumination of the "Shift Lock" warning light on the dashboard
  4. Difficulty engaging gears
  5. Strange noises coming from the gear shift area

How to Fix P0931

  1. Begin by diagnosing the specific cause of the high circuit reading using a scan tool to pinpoint the issue.
  2. Inspect the gear shift lock solenoid/actuator for any visible damage or signs of wear.
  3. Check the wiring and connectors in the control circuit for any breaks, corrosion, or loose connections.
  4. Test the brake light switch to ensure it is functioning correctly and sending the proper signal to the solenoid/actuator.
  5. Replace any faulty components such as the solenoid/actuator, wiring, connectors, fuse, or relay as needed.

Cost to Fix P0931

The typical repair costs for addressing a Gear Shift Lock Solenoid/Actuator Control Circuit 'A' High issue can range from $150 to $400, depending on the specific cause of the problem and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates can vary, so it's recommended to check with local auto repair shops for a more accurate estimate.

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Code P0931 Information for Specific Makes

  • P0931 Dodge — Gear Shift Lock Solenoid/Actuator Control Circuit 'A' High
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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