P0921 Code - Gear Shift Forward Actuator Circuit Range/Performance
Quick Answer
The P0921 diagnostic trouble code (DTC) refers to the Gear Shift Forward Actuator Circuit Range/Performance. Common causes include Faulty gear shift forward actuator, Damaged wiring or connectors in the actuator circuit, Failed transmission control module (TCM). 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
- P0921 indicates Gear Shift Forward Actuator Circuit Range/Performance.
- Common causes
- Common causes include Faulty gear shift forward actuator, Damaged wiring or connectors in the actuator circuit, Failed transmission control module (TCM).
- 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.
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Code P0921 Description
The P0921 diagnostic trouble code (DTC) refers to the Gear Shift Forward Actuator Circuit Range/Performance. This code indicates that there is a problem with the gear shift forward actuator circuit in the vehicle. The gear shift forward actuator is responsible for controlling the movement of the transmission gear shift lever from the neutral position to the forward gear positions. When this circuit is not functioning properly, it can affect the vehicle's ability to shift gears smoothly and efficiently.
Common Causes of P0921
- Faulty gear shift forward actuator
- Damaged wiring or connectors in the actuator circuit
- Failed transmission control module (TCM)
- Low transmission fluid levels
- Mechanical issues with the transmission
Symptoms of P0921
- Check engine light illuminated on the dashboard
- Difficulty shifting gears
- Transmission slipping
- Delayed gear engagement
- Rough shifting
How to Fix P0921
- Diagnose the issue: Use a diagnostic scanner to retrieve the DTC and pinpoint the exact cause of the problem.
- Inspect wiring and connectors: Check for any damaged or loose wiring connections in the gear shift forward actuator circuit.
- Test the gear shift forward actuator: Test the actuator for proper functionality and replace if necessary.
- Inspect the transmission control module: Check the TCM for any signs of damage or malfunction and replace if needed.
- Clear the code: Once the repair is complete, clear the DTC using the diagnostic scanner to reset the check engine light.
Cost to Fix P0921
The typical repair costs for addressing the P0921 code can vary depending on the specific cause of the issue. In general, the cost of parts such as a gear shift forward actuator or a transmission control module can range from $200 to $600. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total repair costs for this issue can range from $300 to $900. It's important to note that labor rates and part prices can vary based on factors such as location, vehicle make and model, and engine type.
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Code P0921 Information for Specific Makes
- P0921 Dodge — Gear Shift Forward Actuator Circuit Range/Performance
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