Obdaryn

P2764Torque Converter Clutch Pressure Control Solenoid Control Circuit Low

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
P2764 is the low counterpart of P2763: the lockup solenoid circuit is pulled toward ground. GM's 2018 T87A table defines it as 0.01 Ω or less to vehicle ground, checked while the driver is off every 6.25 ms. In 2016, the T76 six-speed sets it on a ground-short flag in 4.4 of 5 seconds after a single trip, and the T54 CVT when the hardware sees a ground short for 480 ms or longer while lockup is on. FCA's remanufactured-transmission note for the 62TE adds a twist: if P0740 or P2764 come with jerking or slipping and the solenoid tests good, the torque converter itself has failed and must be replaced. Ford's 2012 6R80 also monitors its TCC driver under this code. Lockup is usually disabled until repair.
What you may notice
  • No lockup and higher fuel consumption
  • Jerking or slipping (62TE)
  • MIL after one trip on some GM units
Likely causes
  • LikelyControl wire shorted to ground
  • PossibleSolenoid winding shorted to its housing
  • PossibleFailed torque converter when the solenoid tests good (FCA 62TE)
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 – €2,500

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.