Pattern Select Switch Circuit

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

(*)Pattern Select Switch
When the pattern select switch is pushed, the switch is contacted and the MANUAL mode is selected. To cancel the MANUAL mode, push the pattern select switch once again. The MANUAL mode is automatically cancelled out when the ignition switch is turned OFF.

INSPECTION PROCEDURE














"MANU" mode indicator light does not light up

"MANU" mode indicator light flashes for several seconds and goes off.
When ATF temperature becomes too hot, the "MANU" mode indicator light flashes for several seconds and goes off. The driving mode then automatically changes from Manual mode to the Normal mode. In case this symptom remains when the ATF temperature is lowered, check if DTC 38 is displayed.