P2762Torque Converter Clutch Pressure Control Solenoid Control Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2762 covers a solenoid circuit that is neither open nor shorted but does not behave as commanded. In GM's six-speed TCM tables for the MW7 (2016) and T87A (2018) the module compares desired with measured solenoid current; a gap of 0.5 A or more in at least 40 of fewer than 80 samples sets the code as Type B, with battery voltage above 10 V. For the T76 six-speed of 2016, GM instead calls it a rationality test that fails when the hardware layer reports an out-of-range voltage in 4.4 of 5 seconds, and lists it without MIL. Rising coil resistance, a weak supply or ground, or a current-sensing fault in the TCM are typical. Lockup may feel harsh or soft, since the pressure no longer follows the target.
- What you may notice
- Harsh or slipping converter lockup
- Shudder at light throttle in higher gears
- Warning lamp depending on application (GM T76 none)
- Likely causes
- LikelySolenoid coil resistance out of specification
- PossibleWeak supply voltage or poor ground at the TCM
- PossibleHigh-resistance terminal in the circuit
- RareCurrent sensing fault inside the TCM
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.