Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On
The TCC pressure control solenoid stays in the activated state when commanded off. TCC stays locked which can stall the engine on low-speed stops.
Affected components
- Tcc pressure solenoid
- Torque converter
Common causes
- High likelihood: Solenoid spool stuck in open position
- Medium likelihood: TCM output driver stuck on
- Low likelihood: Carbon or debris buildup preventing free movement
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
- A drive cycle may be required after repair
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.