Toyota Tundra Service Manual: Back Sonar Sensor RH Circuit

Toyota Tundra Service Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Intuitive Parking Assist System / Back Sonar Sensor RH Circuit

DESCRIPTION

The No. 3 ultrasonic sensor sends and receives ultrasonic waves. Based on the received wave, the sensor calculates the approximate distance value between the vehicle and the obstacle, and sends the distance value as a signal to the clearance warning ECU assembly.

WIRING DIAGRAM

PROCEDURE

1.	INSPECT NO. 3 ULTRASONIC SENSOR (REAR CENTER SENSOR RH)

(a) Replace the No. 3 ultrasonic sensor (rear center sensor RH) (See page ).

(b) Inspect the No. 3 ultrasonic sensor (rear center sensor RH) (See page ).

REPLACE NO. 3 ULTRASONIC SENSOR (REAR CENTER SENSOR RH)

2.	CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR RH - REAR CORNER SENSOR RH)

(a) Disconnect the S3 No. 3 ultrasonic sensor (rear center sensor RH) connector.

(b) Disconnect the S4 No. 2 ultrasonic sensor (rear corner sensor RH) connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
S3-1 (BI) - S4-2 (BO)	Always	Below 1 Ω
S3-3 (SI) - S4-4 (SO)	Always	Below 1 Ω
S3-5 (EI) - S4-6 (EO)	Always	Below 1 Ω
S3-1 (BI) - Body ground	Always	10 kΩ or higher
S3-3 (SI) - Body ground	Always	10 kΩ or higher
S3-5 (EI) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Back Sonar Sensor LH Circuit

Clearance Warning Buzzer Circuit

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