AT2–105 A340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING Pattern Select Switch Circuit — CIRCUIT DESCRIPTION — The ECM memory contains the shift programs for the NORMAL and MANUAL patterns, 2 position, L position and the lock–up patterns. Following the programs corresponding to the signals from the pattern select switch, the park/neutral position switch and other various sensors the ECM switches the solenoid valves ON and OFF, thereby controlling the transmission gear change and the lock–up clutch operation. — WIRING DIAGRAM — Combination Meter 12 W-L 38 W-L 25 II1 E10 M1 Pattern Select Switch MANUAL 4 G-Y 12 G-Y 18 W-B 3 IJ2 E10 M NORMAL IE ECM Q04319