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

Engine control system

...

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 ...

More about Toyota Highlander:

Speed sensor (U151E/U151F)
REPLACEMENT 1. REMOVE BATTERY 2. REMOVE AIR CLEANER ASSY 3. REMOVE AIR CLEANER HOSE NO.1 4. REMOVE SPEED SENSOR (NT SENSOR) (a) Disconnect the speed sensor connector. (b) Remove the bolt and speed sensor. 5. REMOVE SPEED SENSOR (NC SENSOR) (a) Disconnect the speed sensor connector. ...