P0929 Fault Code

Gear Shift Lock Solenoid Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0929 fault code indicates an issue with the Gear Shift Lock Solenoid Circuit. This code triggers when the powertrain control module (PCM) detects a malfunction in the circuit that controls the gear shift lock solenoid. The gear shift lock solenoid is responsible for preventing gear shifting unless the brake pedal is pressed, ensuring safety while driving.

What are the symptoms of the P0929 code?

Symptoms associated with the P0929 code may include:

• Difficulty shifting gears or inability to shift from park
• Warning lights on the dashboard, such as the check engine light
• Unresponsive or malfunctioning gear shift lever
• Engine may not start when in gear.

What causes the P0929 code?

Common causes for the P0929 code include:

• Faulty gear shift lock solenoid
• Wiring issues or short circuits in the solenoid circuit
• Poor connections or corroded terminals
• Defective brake light switch affecting the solenoid operation
• Issues within the powertrain control module (PCM) itself.

How to fix P0929?

To resolve the P0929 fault code, consider the following steps:

• Inspect and test the gear shift lock solenoid for correct operation
• Check wiring and connections for damage or corrosion
• Replace any faulty components identified during the inspection
• Clear the code and test drive the vehicle to ensure the issue is resolved.