Shifting from 1st to 5th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which are controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated smoothly (Fail safe function).


DTC Detection Condition

Trouble Area


The ECM checks for an open or short in the shift solenoid valve SL3 circuit while driving and shifting gears. (1-trip detection logic) - Output signal duty equals to 100 %.

(NOTE: SL3 output signal duty is less than 100 % under normal condition.)

• Open or short in shift solenoid valve SL3 circuit

• Shift solenoid valve SL3


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