Supra L6-2997cc 3.0L DOHC MFI (1998)
When the O/D main SW is turned on (SW point is open), a signal is input to TERMINAL (D) 26 of the engine control module and the
electronically controlled transmission causes shift to overdrive when the conditions for overdrive are met.
* O/D main SW off
When the O/D main SW is turned OFF (SW point is closed), the current flowing through the O/D off indicator light flows to GROUND by
way of the O/D main SW and causes the O/D off indicator light to light up. At the same time, a signal is input to TERMINAL (D) 28 of the
engine control module and the electronically controlled transmission prevents shift into overdrive.
5. ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SW CIRCUIT
When the electronically controlled transmission pattern select SW is switched from NORMAL to MANUAL, a signal is input to TERMINAL
(F) 5 of the engine control module. Input of this signal causes current to flow from the GAUGE fuse to TERMINAL (B) 1 of the combination
meter to TERMINAL (B) 12 to TERMINAL (B) 25 of the engine control module to GROUND, lighting up the indicator light. If the A/T shift
lever is then shifted to 2 position, the engine control module enables the vehicle to start off with the transmission in 2nd gear, thus permitting
easing starting off and driving on slippery roads.