Default Desensitization

This calibration reduces the tendency of the transmission to go into limp-in mode (2nd gear only in OD, 3, L, PRND3L positions) for the following intermittent conditions.
> P1782 2-4 pressure switch sense circuit
> P0736 Gear ratio error in reverse
> P0731 Gear ratio error in 1st
> P0732 Gear ratio error in 2nd
> P0733 Gear ratio error in 3rd
> P0734 Gear ratio error in 4th
> P0715 Input speed sensor error
> P0720 Output speed sensor error
> P1794 Speed sensor ground error
Previous calibrations resulted in an immediate limp-in mode condition when a DTC is sensed during Key ON, and the vehicle speed is below 45 mph.
This calibration always sets a DTC as soon as an electrical, mechanical or hydraulic problem is identified. But the transaxle may not go into limp-in mode until the problem happens several times in a given key start or after several key starts while identifying the DTC in Park or Neutral before vehicle operation begins.