Toyota Highlander Service Manual: SFI system (2AZ-FE)

Engine control system

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On-vehicle inspection

1. CHECK THROTTLE BODY (a) Listen to the throttle control motor operating sounds.  Turn the ignition switch ON.  When pressing the accelerator pedal position sensor lever, listen t ...

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High beam automatic turning on or off conditions
When all of the following conditions are met, the high beam will be automatically turned on (after approximately 1 second):  vehicle speed is above approximately 21 mph (34 km/h).  The area ahead of the vehicle is dark.  There are no oncoming or preceding vehicles with headli ...