Shift Fork C Unrequested Movement
Shift fork C moves without an actuator command. Hydraulic leakage at the actuator or detent spring failure.
Affected components
- Shift fork c
- Shift fork actuator c
- Detent spring
Common causes
- High likelihood: Internal leak in fork actuator
- Medium likelihood: Detent spring or ball failed
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.