Engine-CodesGeneric – C0321:02

C0321:02 Code - Range Actuator Lock Control Circuit Short to Ground

Quick Answer

The C0321:02 diagnostic trouble code (DTC) indicates that there is a short to ground in the range actuator lock control circuit. Common causes include Wiring harness damage or corrosion, Faulty range actuator lock control solenoid, Short circuit in the range actuator lock control circuit. 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
C0321:02 indicates Range Actuator Lock Control Circuit Short to Ground.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty range actuator lock control solenoid, Short circuit in the range actuator lock control circuit.
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 08, 2024
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Code C0321:02 Description

The C0321:02 diagnostic trouble code (DTC) indicates that there is a short to ground in the range actuator lock control circuit. This code is specific to vehicles with an electronically-controlled automatic transmission. The range actuator lock control circuit is responsible for controlling the position of the range actuator, which is a component that helps determine the gear selection in the transmission.

OBDII Code C0321:02 - Range Actuator Lock Control Circuit Short to Ground
C0321:02 Code - Range Actuator Lock Control Circuit Short to Ground

Common Causes of C0321:02

  1. Wiring harness damage or corrosion
  2. Faulty range actuator lock control solenoid
  3. Short circuit in the range actuator lock control circuit
  4. Faulty transmission control module
  5. Electrical issues such as a blown fuse or relay

Symptoms of C0321:02

  1. Erratic shifting patterns
  2. Difficulty engaging or disengaging gears
  3. Transmission slipping
  4. Limp mode activation
  5. Check Engine Light illuminated

How to Fix C0321:02

  1. Diagnose the issue using a scan tool to verify the C0321:02 code and identify the exact location of the short to ground.
  2. Inspect the wiring harness for any damage or corrosion. Repair or replace any damaged wires.
  3. Test the range actuator lock control solenoid for proper operation. Replace if necessary.
  4. Check for any short circuits in the control circuit and repair as needed.
  5. Reset the fault codes, clear the Check Engine Light, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C0321:02

The cost of repairing a C0321:02 code can vary depending on the root cause of the issue. On average, the repair cost for this type of transmission-related problem can range from $200 to $600, including parts and labor. Keep in mind that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate. The rates can be influenced by factors such as location, vehicle make and model, and the type of engine.

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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.

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