Powertrain, generic · Transmission

P0969 Pressure Control Solenoid C Control Circuit Range/Performance

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Performance fault of pressure control solenoid C. Publicly documented only for GM's front-drive six-speeds: on the Saab 9-4X 6T70, clutch pressure solenoid 3 feeds the low/reverse and 4-5-6 clutches through the R1/4-5-6 regulator valve. If measured current differs from the commanded current for 5 s, the module stores a Type C code and freezes the adaptations of both clutches. GM's 2016 table (C456/CBR1 solenoid) sets it after an invalid feedback for 4.4 of 5 s, also without MIL. Other GM users such as the 8- to 10-speeds list only open, low and high for C, and Ford does not use C. Drivers rarely notice more than gradually rougher 4-5-6 or reverse engagements. Electrical faults: P0968, P0970, P0971.

Likely causes

Solenoid 3 with internal fault, current no longer matches the command
Debris sticking the solenoid or the R1/4-5-6 regulator valve
High resistance in the internal connection to the module

Symptoms

  • Usually no warning light
  • Rougher shifts into 4th, 5th, 6th or reverse over time
  • Shift adaptation stops learning

Repair estimate

DifficultyHardWorkshop job
Parts and labour€200–2,500
Time1–6 h

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

Parts involved

pressure control solenoid cwiring harnesstcm

Related codes

P0968P0970P0971P0965P0989P0796

References: saabwisonline.com, gsi.ext.gm.com.