Toyota 4Runner: Front Clearance Sonar Sensor RH Circuit

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Park Assist / Monitoring / Intuitive Parking Assist System / Front 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 (FRONT CORNER SENSOR RH)

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

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

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

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

(a) Disconnect the E1 No. 1 ultrasonic sensor (front corner sensor RH) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
E1-1 (E) - F95-33 (E5)	Always	Below 1 Ω
E1-2 (S) - F95-34 (S5)	Always	Below 1 Ω
E1-1 (E) - Body ground	Always	10 kΩ or higher
E1-2 (S) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Front Clearance Sonar Sensor LH 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 t ...

Rear Clearance Sonar Sensor LH 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 t ...

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Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. REMOVE FRONT WHEEL 2. DRAIN DIFFERENTIAL OIL 3. REMOVE FRONT AXLE HUB GREASE CAP 4 ...