P0756

Schematic:

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 PCM monitors the actual gear ratio and compares the actual gear ratio with the commanded gear ratio. DTC P0756 sets under these conditions: A stuck ON or OFF 2-3 SS Valve, or a stuck ON or OFF 2-3 Shift Valve. When the PCM detects for 4 seconds an actual gear ratio that does not agree with the commanded gear, 1st gear ratio in 2nd, and 4th gear ratio in 3rd, or 2nd gear ratio in 1st and 3rd gear ratio in 4th, then DTC P0756 sets. DTC P0756 is a type A DTC.

DTC PARAMETERS
- Engine running
- Gear range is D4, D3, D2 or D1
- TPS greater than 8%
- Vehicle speed greater than 8 km/h (5 mph)
- Trans temperature greater than 21°C (70°F)
- Engine torque greater than 10 ft-lbs
- No throttle position codes
- No input speed sensor codes
- No output speed sensor codes
- No TFP codes
- No shift solenoid electrical codes

DIAGNOSTIC AIDS
- 2-3 shift solenoid valve
- stuck On or Off
- plugged or leaking
- 2-3 shift valve - stuck On or Off