AutoCodes – Dodge – P0921 Dodge

P0921 Dodge Code - Gear Shift Forward Actuator Circuit Range/Performance

Quick Answer

The Transmission Control Module (TCM) monitors the Gear Shift Forward Actuator. Common causes include Faulty Gear Shift Forward Actuator, Gear Shift Forward Actuator harness is open or shorted, Gear Shift Forward Actuator circuit poor electrical connection. 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 Dodge indicates Gear Shift Forward Actuator Circuit Range/Performance.
Common causes: Common causes include Faulty Gear Shift Forward Actuator, Gear Shift Forward Actuator harness is open or shorted, Gear Shift Forward Actuator circuit poor electrical connection.
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 Popularity 4,177

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0921 Dodge Description

The Transmission Control Module (TCM) monitors the Gear Shift Forward Actuator. The TCM sets the OBDII code when the Gear Shift Forward Actuator is not to factory specifications.

OBDII Code P0921 Dodge - Gear Shift Forward Actuator Circuit Range/Performance - AutoCodes.com — P0921 Dodge Code - Gear Shift Forward Actuator Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P0921 Dodge?

Faulty Gear Shift Forward Actuator
Gear Shift Forward Actuator harness is open or shorted
Gear Shift Forward Actuator circuit poor electrical connection

How to Fix the DTC P0921 Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0921 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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.

Frequently Asked Questions about P0921 Dodge Code

1. What does the OBDII code P0921 mean on a Dodge vehicle?

P0921 indicates an issue with the Gear Shift Forward Actuator Circuit, specifically related to its range or performance.

2. What are the common symptoms of the P0921 code in a Dodge?

Symptoms may include the inability to shift gears properly, the transmission stuck in one gear, or the illumination of the check engine light.

3. What causes the P0921 code to appear in a Dodge?

Common causes include a faulty gear shift forward actuator, damaged wiring or connectors in the actuator circuit, or an issue with the transmission control module (TCM).

4. Can I drive my Dodge with the P0921 code?

Driving with this code is not recommended as it can lead to unsafe driving conditions due to potential transmission issues.

5. How do I diagnose the P0921 code in a Dodge vehicle?

Diagnosis involves checking the actuator circuit for damaged wiring or poor connections, testing the gear shift forward actuator, and inspecting the TCM for faults.

6. How is the P0921 code fixed in a Dodge?

Repairs may include replacing the gear shift forward actuator, repairing or replacing damaged wiring, or reprogramming or replacing the TCM.

7. How much does it cost to repair the P0921 code in a Dodge?

Repair costs vary, but actuator replacement typically ranges from $200 to $500, depending on the vehicle and labor costs.

8. Can a low battery cause the P0921 code in a Dodge?

Yes, a weak or low battery can cause voltage issues in the actuator circuit, potentially triggering the P0921 code.

9. Will clearing the P0921 code resolve the issue permanently?

Clearing the code without addressing the underlying problem will not resolve the issue, and the code will likely return.

10. Is the P0921 code related to a specific Dodge model?

The code can appear on various Dodge models equipped with electronic gear shift actuators, but the exact cause may vary depending on the model and year.