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 2.442, then the input speed is 2,442 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 2nd,RED brake or Oneway clutch2 |
Enable Conditions | ● Engine speed >450rpm ● Output speed >350rpm ● Shift stage 2nd. gear ● Input speed >0rpm ● A/T oil temp output ≥ -23.5℃ ● Voltage of Battery >10V ● TRANSAXLE RANGE SWITCH is normal and after 2sec is passed from IG ON OD SOL Open/SCB error is not detecting | |
Threshold Value | ●ㅣInput speed - output speed * 2nd gear ratio ㅣ≥200rpm | |
Diagnostic Time | ● More than 4sec | |
Fail Safe | ● Locked into 3 rd gear. |
