Toyota Tundra Service Manual: Rear Clearance Sonar Sensor LH Circuit

Toyota Tundra Service Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Intuitive Parking Assist System / Rear Clearance Sonar Sensor LH Circuit

DESCRIPTION

The No. 2 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. 2 ULTRASONIC SENSOR (REAR CORNER SENSOR LH)

(a) Remove the No. 2 ultrasonic sensor (rear corner sensor LH) (See page ).

(b) Inspect the No. 2 ultrasonic sensor (rear corner sensor LH) (See page ).

REPLACE NO. 2 ULTRASONIC SENSOR (REAR CORNER SENSOR LH)

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

(a) Disconnect the S1 No. 2 ultrasonic sensor (rear corner sensor LH) connector.

(b) Disconnect the S2 No. 3 ultrasonic sensor (rear center sensor LH) connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
S1-1 (BI) - S2-2 (BO)	Always	Below 1 Ω
S1-3 (SI) - S2-4 (SO)	Always	Below 1 Ω
S1-5 (EI) - S2-6 (EO)	Always	Below 1 Ω
S1-1 (BI) - Body ground	Always	10 kΩ or higher
S1-3 (SI) - Body ground	Always	10 kΩ or higher
S1-5 (EI) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Problem Symptoms Table

Rear Clearance Sonar Sensor RH Circuit

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