Powertrain
generic / SAE
P2770
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 70
Possible causes
- Control wire shorted to battery high
- Open solenoid coil medium
- Connector pins corroded - high contact resistance low
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
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 300–1500 €
- Estimated time: 1.5–6 h
- Component: tcc solenoid
- Component: tcm
- Component: transmission wiring
- MIL / check engine light
Sources
References
sae:J2012