If 1st gear synchronization error is detected, PCM sets DTC P0731.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Rationality Monitoring | 1. Defected Solenoid Valves 2. Defected Mechanical Parts |
Enable Conditions |
•
1 sec. after the last shift was finished
•
ATF Temperature higher than -10℃(14℉)
•
Engine Speed higher than 400 RPM
•
Lever Position in "D" or "Sports" (Forward Gear)
•
Normal Battery Voltage
•
Output Speed higher than 200 RPM
•
Input Speed higher than 0 RPM | |
Threshold value |
•
1st gear synchronization error (Absolute value of Input speed - (Output speed * Gear Ratio) is higher than 200 RPM) | |
Detecting Time |
•
Mechanical limp home (4th gear hold, manual shift is not allowed) | |
Fail safe |
•
4 Sec. | |
MIL ON Condition |
•
2nd Driving Cycle |
