No. 3 Solenoid Valve Circuit (For Lock-Up Control)

CIRCUIT DESCRIPTION
Shifting from 1st to O/D is done in combination with ON and OFF of the No. 1 and No. 2 solenoid valves controlled by Engine Control Module (ECM). If an open or short circuit occurs in either of the solenoid valves, the ECM controls the remaining normal solenoid to allow the vehicle to be operated smoothly (Fail safe function).