Clutch B Performance/Stuck Disengaged
Clutch B cannot leave the disengaged state when engagement is commanded. No torque transfer through this clutch.
Affected components
- Clutch b
- Clutch actuator b
- Valve body
Common causes
- High likelihood: Clutch actuator stuck at low pressure
- Medium likelihood: Severe hydraulic leak prevents engagement
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.