Engine-CodesGeneric – P0929

P0929 Code - Gear Shift Lock Solenoid/Actuator Control Circuit 'A' Range/Performance

Quick Answer

The diagnostic trouble code P0929 indicates a problem with the Gear Shift Lock Solenoid/Actuator Control Circuit 'A' Range/Performance. Common causes include Faulty gear shift lock solenoid or actuator, Damaged or corroded wiring in the control circuit, Blown fuse related to the gear shift lock system. 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
P0929 indicates Gear Shift Lock Solenoid/Actuator Control Circuit 'A' Range/Performance.
Common causes
Common causes include Faulty gear shift lock solenoid or actuator, Damaged or corroded wiring in the control circuit, Blown fuse related to the gear shift lock system.
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 12, 2024
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Code P0929 Description

The diagnostic trouble code P0929 indicates a problem with the Gear Shift Lock Solenoid/Actuator Control Circuit 'A' Range/Performance. This code is typically found in vehicles with automatic transmissions. The gear shift lock solenoid or actuator is responsible for preventing the gear shifter from being moved out of the "Park" position unless the brake pedal is depressed. When this circuit malfunctions, it can lead to issues with shifting gears, potentially causing safety concerns and affecting the overall performance of the vehicle.

OBDII Code P0929 - Gear Shift Lock Solenoid/Actuator  Control Circuit 'A' Range/Performance
P0929 Code - Gear Shift Lock Solenoid/Actuator Control Circuit 'A' Range/Performance

Common Causes of P0929

  1. Faulty gear shift lock solenoid or actuator.
  2. Damaged or corroded wiring in the control circuit.
  3. Blown fuse related to the gear shift lock system.
  4. Malfunctioning powertrain control module (PCM).
  5. Mechanical issues with the gear shifter mechanism.

Symptoms of P0929

  1. Inability to shift out of "Park" without pressing the brake pedal.
  2. Difficulty shifting gears.
  3. Gear shifter feels stuck or hard to move.
  4. Illumination of the "Shift Lock" warning light on the dashboard.
  5. Unintended gear shifts or slipping gears.

How to Fix P0929

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to read the trouble codes and pinpoint the source of the problem.
  2. Inspect the gear shift lock solenoid or actuator for any signs of damage or malfunction. Replace if necessary.
  3. Check the wiring and connections in the control circuit for any breaks, corrosion, or loose connections. Repair or replace as needed.
  4. Test the fuses related to the gear shift lock system and replace any blown fuses.
  5. If the issue persists, consider having the PCM reprogrammed or replaced by a qualified technician.

Cost to Fix P0929

The cost of repairing the Gear Shift Lock Solenoid/Actuator Control Circuit 'A' Range/Performance issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay between $150 and $400 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can fluctuate, so it's recommended to obtain quotes from multiple shops to ensure a competitive price. Additionally, factors such as the vehicle make and model, as well as the location of the repair shop, can influence the overall cost of the repair.

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Code P0929 Information for Specific Makes

  • P0929 Dodge — Gear Shift Lock Solenoid/Actuator Control Circuit 'A' Range/Performance
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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