Toyota 4Runner: Rear 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 (REAR CORNER SENSOR RH) |
(a) Remove the No. 1 ultrasonic sensor (rear corner sensor RH) (See page
.gif)
).
(b) Inspect the No. 1 ultrasonic sensor (rear corner sensor RH) (See page
).
| NG | .gif) |
REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH) |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (REAR CORNER SENSOR RH - CLEARANCE WARNING ECU ASSEMBLY) |
(a) Disconnect the P1 No. 1 ultrasonic sensor (rear corner 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 |
|---|---|---|
|
P1-1 (E) - F95-17 (E1) |
Always |
Below 1 Ω |
|
P1-2 (S) - F95-18 (S1) |
Always |
Below 1 Ω |
|
P1-1 (E) - Body ground |
Always |
10 kΩ or higher |
|
P1-2 (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 |
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 ...
Clearance Sonar Main Switch Circuit
DESCRIPTION
When the back sonar or clearance sonar switch assembly turns on, the on signal
is input into the clearance warning ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Ins ...
Other materials about Toyota 4Runner:
Lumbar Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT LUMBAR SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Switch ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. REMOVE FRONT WHEEL
2. DISCONNECT FRONT DISC BRAKE CYLINDER ASSEMBLY LH
3. REMOVE FRONT DISC
4. REMOVE FRONT AXLE HUB GREASE CAP
5. INSPECT FRONT AXLE HUB BEARING LOOSENESS
(a) Using a dial indicator ...
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