Toyota 4Runner: Rear Clearance Sonar Sensor RH Circuit

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Park Assist / Monitoring / Intuitive Parking Assist System / Rear Clearance Sonar Sensor RH Circuit

DESCRIPTION

The ultrasonic sensor sends and receives ultrasonic waves. Based on the received wave, the sensor calculates the approximate distance between the vehicle and the obstacle, and sends the distance value as a signal to the clearance warning ECU assembly.

WIRING DIAGRAM

PROCEDURE

1.	REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH)

(a) Remove the No. 1 ultrasonic sensor (rear corner sensor RH) (See page ).

(b) Inspect the No. 1 ultrasonic sensor (rear corner sensor RH) (See page ).

REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH)

2.	CHECK HARNESS AND CONNECTOR (REAR CORNER SENSOR RH - CLEARANCE WARNING ECU ASSEMBLY)

(a) Disconnect the P1 No. 1 ultrasonic sensor (rear corner sensor RH) connector.

(b) Disconnect the F95 clearance warning ECU assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
P1-1 (E) - F95-17 (E1)	Always	Below 1 Ω
P1-2 (S) - F95-18 (S1)	Always	Below 1 Ω
P1-1 (E) - Body ground	Always	10 kΩ or higher
P1-2 (S) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

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