Toyota 4Runner: Back 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. |
INSPECT NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH) |
(a) Remove the No. 1 ultrasonic sensor (rear center sensor RH) (See page
.gif)
).
(b) Inspect the No. 1 ultrasonic sensor (rear center sensor RH) (See page
).
| NG | .gif) |
REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH) |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR RH - CLEARANCE WARNING ECU ASSEMBLY) |
(a) Disconnect the P2 No. 1 ultrasonic sensor (rear center sensor RH) connector.
(b) Disconnect the F95 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 |
|---|---|---|
|
P2-1 (E) - F95-39 (E3) |
Always |
Below 1 Ω |
|
P2-2 (S) - F95-40 (S3) |
Always |
Below 1 Ω |
|
P2-1 (E) - Body ground |
Always |
10 kΩ or higher |
|
P2-2 (S) - 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 |
Back 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 ...
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 ...
Other materials about Toyota 4Runner:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Inspect the window defogger system after confirming that the back door
power window system of the power window control system is operating normally.
Use these procedures to troubleshoot the window defogger sys ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
0.0067