2nd Start Switch
WARNING: This page is about a different car, the 2000 Toyota Land Cruiser and 2000 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
Input signal is delivered to ECM when switch is activated. ECM controls solenoids to ensure transmission will start out in 2nd gear. The 2nd start switch is included in pattern select switch.