P2758
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.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
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
Common causes
Ordered by how often each turns out to be the cause.
- Solenoid spool stuck in open positionCommon
- TCM output driver stuck onPossible
- Carbon or debris buildup preventing free movementLess likely
Parts involved
- TCC Pressure Solenoid
- Torque Converter
P2758 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.