Supra Liftback L6-2997cc 3.0L DOHC MFI Twin-Turbo (1997)
Transmission Mode Switch: Testing and Inspection
Pattern Select Switch Circuit
CIRCUIT DESCRIPTION
The ECM memory contains the shift programs for the NORMAL and MANUAL patterns, 2 position and 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.
Step 1
