P0928 Fault Code

Gear Shift Lock Solenoid Circuit / Open

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

The P0928 code indicates an issue with the gear shift lock solenoid circuit, specifically an open circuit condition. This solenoid is responsible for preventing the gear shift lever from being moved out of the Park position unless the brake is applied. An open circuit can lead to problems with gear shifting, affecting the overall functionality of the transmission and the vehicle's drivability.

What are the symptoms of the P0928 code?

• Gear shift lever is stuck in the Park position, preventing vehicle movement.
• Warning lights on the dashboard may be illuminated, indicating transmission issues.
• Inconsistent shifting behavior, especially when attempting to move from Park to Drive or Reverse.
• Difficulty in starting the vehicle due to the gear shift being locked.

What causes the P0928 code?

• Damaged wiring or connectors in the gear shift lock solenoid circuit.
• Faulty gear shift lock solenoid that is not providing the necessary feedback to the control module.
• Issues with the brake pedal position sensor which may prevent the solenoid from activating properly.
• Short circuits or open circuits due to wear and tear in the vehicle's wiring system.

How to fix P0928?

• Inspect and repair any damaged wiring or connectors related to the gear shift lock solenoid circuit.
• Test the gear shift lock solenoid for functionality and replace it if defective.
• Check the brake pedal position sensor for proper operation and adjust or replace if needed.
• Clear any fault codes and perform a test drive to ensure the issue is resolved.