Toyota Tundra Service Manual: Front Clearance Sonar Sensor RH Circuit

DESCRIPTION

The No. 1 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. 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 ).

NG

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

OK

2.

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

(a) Disconnect the B1 No. 1 ultrasonic sensor (front corner sensor RH) connector.

(b) Disconnect the J35 clearance warning ECU assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

B1-1 (BI) - J35-3 (BOF)

Always

Below 1 Ω

B1-3 (SI) - J35-5 (SOF)

Always

Below 1 Ω

B1-5 (EI) - J35-4 (E5)

Always

Below 1 Ω

B1-1 (BI) - Body ground

Always

10 kΩ or higher

B1-3 (SI) - Body ground

Always

10 kΩ or higher

B1-5 (EI) - Body ground

Always

10 kΩ or higher

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

    Front Clearance Sonar Sensor LH Circuit

    How To Proceed With Troubleshooting

    See More:

    Toyota Tundra Service Manual > Can Communication System: Open in One Side of Bus 4 Branch Line
    DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes in ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2024 Copyright www.ttundra.com
    0.0194