Torque Converter Clutch Solenoid Circuit High
The voltage on the TCC solenoid control circuit is above the calibrated maximum. Either the wire is shorted to battery voltage or the solenoid coil is open.
Affected components
- Tcc solenoid
- Tcm
- Transmission wiring
Common causes
- High likelihood: Control wire shorted to battery
- Medium likelihood: Open solenoid coil
- Low likelihood: Connector pins corroded - high contact resistance
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
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.