Circuit Description
WARNING: This page is about a different car, the 2002 Toyota Land Cruiser, 2002 Lexus LX 470, 2001 Toyota Land Cruiser, and 2001 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
Stop light switch signal circuit is used to detect when brake pedal has been applied. Stop light switch sends a signal to ECM when brake pedal is applied. This prevents engine stalling while driving in lock-up condition when brakes are suddenly applied. DTC is set when stop light switch signal does not turn off even once when vehicle is driven. Possible causes are:
- Short in stop light switch signal circuit.
- Stop light switch.
- ECM malfunction.