Back Sonar Sensor RH Circuit

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Back Sonar Sensor RH Circuit

Back Sonar Sensor RH Circuit

DESCRIPTION

An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a pre-amplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received signals to the clearance warning ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT NO. 1 ULTRASONIC SENSOR




(a) Remove the No. 1 ultrasonic sensor.
(b) Measure the resistance.
Standard resistance:





(c) Reinstall the sensor.
NG -- REPLACE NO. 1 ULTRASONIC SENSOR
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 1 ULTRASONIC SENSOR)




(a) Disconnect the E31 clearance warning ECU connector.
(b) Disconnect the M1 No. 1 ultrasonic sensor connector.
(c) Measure the resistance.
Standard resistance:





(d) Reconnect the ECU connector.
(e) Reconnect the sensor connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE