Default Desensitization

This calibration reduces the tendency of the transmission to go into limp-in mode (2nd gear only in OD, 3, L, PRN03L positions) for the following intermittent conditions.
- P1768 Relay output always off
- 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 start while identifying the DTC in Park or Neutral before vehicle operation begins.