Jimm 2/5/2013P0751 - Shift solenoid 'A' circuit performance or stuck open.
The problem is with the 1-2 shift solenoid. Diagnostic trouble code (DTC) P0751 will disable shift adapts, force maximum line pressure, and inhibit 3-2 downshifts when the vehicle speed is greater than 30 mph.
P0756 = Shift Solenoid B Performance or Stuck Off
Possible causes; pertains to both P0751 and P0756 codes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid B valve
- Shift solenoid B valve harness or connectors
- Shift solenoid B valve circuit is open or shorted