Powertrain, generic (extended)

P2815 Pressure Control Solenoid G Control Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2815 is the opposite electrical case: the driver of solenoid G sees battery voltage where the load should pull the pin down. In GM's 2016 eight-speed table, where G is the converter clutch pressure valve, the flag must stand for 0.3 s of a 0.5 s window and one trip is enough. The 2023 Corvette dual-clutch software, with G as the limited-slip valve, also books two further checks here: estimated current deviating from target by over 70 % for 60 ms or by 200 mA for 300 ms, and a short to a neighbouring output found during the shutdown test and set at the next start, rated Type B. Ford lists a shorted load on the TR9070 even clutch cooling valve under this code. Check the harness for contact with a supply wire before replacing parts.

Likely causes

Control wire of solenoid G touching a supply voltage wire
Solenoid coil with shorted turns drawing too much current
Two solenoid outputs shorted together inside the harness or valve body
Faulty driver stage in the transmission module

Symptoms

  • MIL lit and transmission in a substitute program
  • Harsh engagement or missing converter lockup
  • Code may appear only after the next engine start (shutdown test)

Repair estimate

DifficultyHardWorkshop job
Parts and labour€120–2,500
Time1–6 h

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

Parts involved

pressure control solenoid gwiring harness

Related codes

P2814P2812P2810P2807P281E

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