Powertrain, generic (extended)

P2761 Torque Converter Clutch Pressure Control Solenoid Control Circuit/Open

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2761 says the TCM has lost continuity to the converter clutch pressure solenoid. GM documents the check in its six-speed TCM tables (16OBDG08 for the MW7 unit in Silverado/Sierra, 18OBDG04 for the T87A): with the driver switched off, an impedance of 173 kΩ or more counts as open, while 9.6 kΩ or less does not; after three hardware counts an intrusive test opens the low-side driver, and two confirming counts set the Type B code. The same tables block the stuck-off test P0741 while P2761 is pending. On 2023 Ram heavy-duty trucks with the 6.7 l Cummins, bulletin 1807223 lists P2761 among codes caused by a leaking capacitor inside the engine controller, so the solenoid is not always to blame.

Likely causes

Broken wire or backed-out pin to the solenoid
Open solenoid winding
Internal controller fault (Ram 6.7 l ECM capacitor leak)

Symptoms

  • No torque converter lockup
  • MIL on after two trips (GM Type B)
  • Higher cruise rpm and fuel use

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–1,500
Time0.5–5 h

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

Parts involved

tcc pressure solenoidwiring harness

Related codes

P2763P2764P2762P0741P0740

References: gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov.