P0757

P0757 - 2-3 SHIFT SOLENOID VALVE PERFORMANCE STUCK OFF (L81)





The 1-2 shift solenoid valve (1-2 SS Valve) is a normally open exhaust valve that in conjunction with the 2-3 shift solenoid valve (2-3 SS Valve), allows four different shifting combinations. The 2-3 SS Valve is attached to the control valve body, within the transaxle. The TCM monitors the actual gear ratio and compares the actual gear ratio with the commanded gear ratio. DTC P0757 sets under these conditions: A stuck OFF 2-3 SS Valve, or a stuck OFF 2-3 Shift Valve.
When the TCM detects an actual gear ratio that does not agree with the commanded gear, 2nd gear ratio in 3rd and 1st gear ratio in 4th then DTC P0757 sets.

DTC PARAMETERS
- Engine running
- Gear range is D4, D3, D2 or D1 TP angle is greater than 8% Vehicle speed greater than 8 km/h (5 mph)
- TFT between 21° C (70° F) and 130° C (266° F)
- Engine torque greater than 10 ft. lbs.
- No engine torque, ISS, OSS, shift solenoid electrical, TFP or TP sensor DTCs have been set.
P0757 is a (type A) DTC.

DIAGNOSTIC AIDS
- 2-3 shift solenoid valve - stuck Off
- Leaking solenoid
- 2-3 shift valve - stuck in downshifted position