Code P076, Transaxle Pressure Control Solenoid Circuit: Action

PCM turns on MIL, transaxle pressure control solenoid de-energized. Torque management disabled and transaxle shift adapts are maintained at current levels.

1. Checks for open in transaxle pressure control solenoid circuit. If resistance is 8 ohms or greater, circuit is open.
2. Checks for short to ground in transaxle pressure control solenoid circuit. If resistance is 100 ohms or less, circuit is shorted to ground.
3. If transaxle pressure control solenoid is okay, fault is either intermittent or PCM is faulty.
4. If resistance is greater than 8 ohms, check for open transaxle pressure control solenoid or circuits No. 1228 or 1229. If resistance is 8 ohms or less, check for open between solenoid connector and PCM in circuits No. 1228 or 1229.
5. If resistance is 100 ohms or greater, check for short to ground between PCM connector circuits NO. 1228 or 1229. If resistance is less than 100 ohms, check for short to ground inside transaxle circuits No. 1228 or 1229 or for shorted transaxle pressure solenoid.

Fig 1: Code P076 Schematic, Transaxle Pressure Control Solenoid Circuit

Courtesy of GENERAL MOTORS CORP.

Fig 2: Code P076 Diagnostic Flow Chart, Transaxle Pressure Control Solenoid Circuit

Courtesy of GENERAL MOTORS CORP.