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 LH) |
(a) Remove the No. 1 ultrasonic sensor (rear center sensor LH) (See page ).
(b) Inspect the No. 1 ultrasonic sensor (rear center sensor LH) (See page ).
NG |
REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH) |
|
2. |
CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR LH - CLEARANCE WARNING ECU ASSEMBLY) |
(a) Disconnect the P3 No. 1 ultrasonic sensor (rear center sensor LH) 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 |
---|---|---|
P3-1 (E) - F95-15 (E4) |
Always |
Below 1 Ω |
P3-2 (S) - F95-16 (S4) |
Always |
Below 1 Ω |
P3-1 (E) - Body ground |
Always |
10 kΩ or higher |
P3-2 (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 |
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK CLEARANCE WARNING ECU
(a) Disconnect the F95 clearance warning ECU assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
Terminal No. (Symbol)
Wiring Col ...
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