Toyota RAV4 manuals

Toyota Sienna Service Manual: Back 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 waves and sends the received signals to the clearance warning ECU.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT NO. 2 ULTRASONIC SENSOR

INSPECT NO. 2 ULTRASONIC SENSOR

  1. Remove the No. 2 ultrasonic sensor.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 2 ULTRASONIC SENSOR)

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 2 ULTRASONIC SENSOR)

  1. Disconnect the C9 connector from the clearance warning ECU.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 2 ULTRASONIC SENSOR)

  1. Disconnect the U5 connector from the No. 2 ultrasonic sensor.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Back 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 wave ...

Front 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 wave ...

Other materials:

Precaution
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