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 2.308, then the input speed is 2308 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
2rd gear incorrect ratio
Faulty Input Speed Sensor
Faulty Output Speed Sensor
Faulty internal parts in transmission
Enable Conditions
Engine RPM >600rpm
150rpm < Output Speed < 6000rpm
Lever Position = "D"
Input speed > 600rpm
A/T oil temp output = -10?
Throttle opening > 15%
The time after the last shift was finish > 1sec
Threshold Value
?Input speed/2nd gear ratio - output speed|=200rpm
Diagnostic Time
More than 1sec
Fail Safe
4th gear Limp-Home mode.
Fig 1) 2nd gear in "D" range