Toyota Tundra Service Manual > Automatic Transmission System: Transmission Control Switch Circuit
DESCRIPTION After moving the shift lever to S, it is possible to switch the shift range between "1" (S1 range) and "6" (S6 range) using the transmission control switch. Shifting to "+" once raises the shift range by one, and shifting to "-" once lowers the shift range by one. WIRING DIAGRAM PROCEDUR ...
