Powertrain, generic (extended)

P2757 Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

P2757 means the converter clutch was commanded to apply, yet the speed difference between engine and turbine stayed too large, so the lockup never really happened. It is a functional verdict: the circuit may be electrically sound while the valve, the hydraulic feed or the clutch lining fails to deliver. Toyota uses it on the 2014–2019 Corolla CVT, where it points to shift solenoid SL; bulletin T-SB-0150-16 replaces the valve body. On 2016 Ram 3500 to 5500 trucks with the Aisin AS69RC six-speed, bulletin 21-027-16 traces it to a dislodged snap ring inside the converter, and an FCA tech tip notes the code returns during a light-throttle lockup attempt. Expect higher revs at cruise, more fuel use and hotter fluid.

Likely causes

Sticking lockup solenoid or valve body (Toyota CVT solenoid SL)
Internal converter fault such as a dislodged snap ring (Ram AS69RC)
Low, aged or contaminated fluid
Worn converter clutch lining

Symptoms

  • Engine speed stays high at steady cruise
  • Higher fuel consumption
  • Transmission fluid runs hot
  • Check engine lamp on

Repair estimate

DifficultyHardWorkshop job
Parts and labour€200–3,500
Time1–9 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

tcc pressure solenoidtorque converter

Related codes

P2758P2756P0741P2762

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.