Engine-CodesGeneric – P0920

P0920 Code - Gear Shift Forward Actuator Circuit/Open

Quick Answer

The P0920 code indicates a problem with the gear shift forward actuator circuit being open, meaning there is an issue with the electrical circuit that controls the gear shift mechanism in the vehicle. Common causes include Damaged wiring or connectors in the gear shift actuator circuit, Malfunctioning gear shift actuator motor, Faulty shift control module. 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
P0920 indicates Gear Shift Forward Actuator Circuit/Open.
Common causes
Common causes include Damaged wiring or connectors in the gear shift actuator circuit, Malfunctioning gear shift actuator motor, Faulty shift control module.
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 10, 2024
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Code P0920 Description

The P0920 code indicates a problem with the gear shift forward actuator circuit being open, meaning there is an issue with the electrical circuit that controls the gear shift mechanism in the vehicle. This can have a significant impact on the vehicle's performance and safety as it may result in the inability to shift gears properly. The gear shift actuator is responsible for engaging and disengaging the gears in the transmission, allowing the driver to change gears smoothly. When the circuit is open, it means that there is a break in the electrical connection, preventing the actuator from functioning correctly.

OBDII Code P0920 - Gear Shift Forward Actuator Circuit/Open
P0920 Code - Gear Shift Forward Actuator Circuit/Open

Common Causes of P0920

  1. Damaged wiring or connectors in the gear shift actuator circuit
  2. Malfunctioning gear shift actuator motor
  3. Faulty shift control module
  4. Issues with the transmission itself, such as internal damage or wear
  5. Corrosion or moisture in the electrical connections

Symptoms of P0920

  1. Inability to shift gears smoothly
  2. Gear slippage or erratic shifting
  3. Illumination of the check engine light
  4. Delayed engagement of gears
  5. Harsh shifting or jerking when changing gears

How to Fix P0920

  1. Diagnose the root cause of the issue using a scan tool to identify the specific fault code and perform a visual inspection of the gear shift actuator circuit.
  2. Check the wiring and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the gear shift actuator motor and shift control module for proper functionality. Replace if faulty.
  4. Clear the fault code from the vehicle's computer and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, consult a professional mechanic or dealership for further diagnostics and repairs.

Cost to Fix P0920

The cost of repairing a gear shift forward actuator circuit/open issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the parts for this repair can range from $100 to $500, while the labor costs can range from $150 to $300. Overall, the total repair cost can add up to $250 to $800. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the repair facility. It's recommended to obtain quotes from multiple auto repair shops to compare prices and ensure a fair deal.

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Code P0920 Information for Specific Makes

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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