Toyota Sienna Service Manual: Horn
Indicator Circuit
DESCRIPTION
The indicator displays the location of the obstacle and the approximate
distance between the vehicle and
the obstacle either by blinking or turning on.
WIRING DIAGRAM
INSPECTION ...
Horn system
PARTS LOCATION
PROBLEM SYMPTOMS TABLE
HORN SYSTEM
...
Other materials:
Power back door main switch
INSPECTION
1. INSPECT POWER BACK DOOR MAIN SWITCH
Inspect the resistance of the main switch.
Resistance
If the result is not as specified, replace the switch.
Apply battery voltage and check the illuminates.
OK
HINT:
Whether the switch illuminates or not will not affect
th ...
Changing the vehicle-to-vehicle distance
Pressing the button changes the
vehicle-to-vehicle distance as follows:
Long
Medium
Short
The vehicle-to-vehicle distance is
set automatically to long mode
when the engine switch is turned to
IGNITION ON mode.
If a vehicle is running ahead of
you, the preceding vehicle mark
w ...
Detection range of the sensors
Approximately 2.0 ft. (60 cm)
Approximately 2.8 ft. (85 cm)
Approximately 5.9 ft. (180 cm)
The diagram shows the detection
range of the sensors. Note that the
sensors cannot detect obstacles
that are extremely close to the
vehicle.
The range of the sensors may
change depending ...
