The TCU is control each solenoid-valve in order to maintain optimum gear shift.
The TCU set this code, when the abnormal code is happened.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Check the shift signal
? S1,S2 solenoid-valve
? TCU
? Line pressure solenoid-valve(SLT)
? Shift solenoid-vlave(SLC1,SLC2, SLC3,SLB1)
Enable Conditions
? ATF temp. > 65?
? TCU communication = normal
? Shift lever switch = "D"range
? Output speed > 300rpm
Threshold Value
? Detect abnormal shifting
Diagnostic Time
? More than 20times × more than1sec
Fail Safe
? Self learning control is inhibited
? Adaptive control is inhibited