Toyota Sienna Service Manual: Rear Clearance Sonar Sensor LH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a preamplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT NO. 1 ULTRASONIC SENSOR
- Remove the No. 1 ultrasonic sensor.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 1 ULTRASONIC SENSOR)
- Disconnect the C9 connector from the clearance warning ECU.
- Disconnect the U4 connector from the No. 1 ultrasonic sensor.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Front Clearance Sonar Sensor RH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives
ultrasonic waves and a preamplifier
that amplifies them. The ultrasonic sensor outputs the ultrasonic wave ...
Rear Clearance Sonar Sensor RH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives
ultrasonic waves and a preamplifier
that amplifies them. The ultrasonic sensor outputs the ultrasonic wave ...
Other materials:
Problem symptoms table
WINDOW DEFOGGER SYSTEM
Symptom
Suspected area
w/ Deicer: Front window deicer does not operate.
(indicator light ON)
FR DEF fuse
Front window deicer relay
Front window deicer wire
Wire harness
w/ deicer: Front window deicer ...
Removing the second seats
Removing the second outside seats (Tip-up seats)
Pull the armrests up.
Pull the seatback adjustment
lever and fold down the seatback.
The cushion will tip up.
Slide the seat forward to a lock position.
Pull the release lever under
the cushion and simultaneously
lift the ...
Operation check
NOTICE:
Inspection should be started after conforming that the
items listed in the "CUSTOMIZE PARAMETER" for the
power slide door system have defaulted to the initial
settings.
1. CHECK OPENING OPERATION
Conditions necessary for the power slide door to
open:
Power slid ...