P0731 1GR Incorrect ratio
Description
This malfunction is detected when the A/T does not shift into 1GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...
Calibration of G Sensor
Description
TCM stores calibration data (inherent characteristic value) of G sensor to
provide accurate control. Therefore,
it is required to perform calibration of G sensor after the following work is
performed.
Removal/installation or replacement of G sensor
Replacement of TCM
Work ...