The value of the input shaft speed should be equal to the value of the output shaft speed, when multiplied by the 2nd gear ratio, while the transaxle is engaged in the 2nd gear. For example, if the output speed is 1000 rpm and the 2nd gear ratio is 1.551, then the input speed is 1.551 rpm.
This code is set if the value of input shaft speed is not equal to the value of the output shaft, when multiplied by the 2nd gear ratio, while the transaxle is engaged in 2nd gear. This malfunction is mainly caused by mechanical troubles such as control valve sticking or solenoid valve malfuctioning rather than an electrical issue.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
2nd gear incorrect ratio |
•
Faulty Input speed sensor
•
Faulty output speed sensor
•
Faulty UD clutch or 2-4 brake |
Enable Conditions |
•
Engine speed >400rpm
•
Output speed >400rpm
•
Input speed >300rpm
•
Monitoring time > 4 | |
Threshold Value |
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Output speed >(input speed+200rpm)/2nd. gear ratio
•
Output speed <(input speed-200rpm)/2nd. gear ratio | |
Diagnostic Time |
•
More than 1sec. | |
Fail Safe |
•
Locked into 3 rd gear.(If diagnosis code P0732 is output four times, the transaxle is locked into 3rd gear) |
Fig 1) INPUT SIGNAL → LOW SPEED
Fig 2) INPUT SIGNAL → HIGH SPEED
