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 (FRONT CORNER SENSOR LH) |
(a) Remove the No. 1 ultrasonic sensor (front corner sensor LH) (See page
).
(b) Inspect the No. 1 ultrasonic sensor (front corner sensor LH) (See page
).
NG | ![]() |
REPLACE NO. 1 ULTRASONIC SENSOR (FRONT CORNER SENSOR LH) |
|
2. |
CHECK HARNESS AND CONNECTOR (FRONT CORNER SENSOR LH - CLEARANCE WARNING ECU ASSEMBLY) |
(a) Disconnect the E2 No. 1 ultrasonic sensor (front corner 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 |
---|---|---|
E2-1 (E) - F95-12 (E6) |
Always |
Below 1 Ω |
E2-2 (S) - F95-13 (S6) |
Always |
Below 1 Ω |
E2-1 (E) - Body ground |
Always |
10 kΩ or higher |
E2-2 (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 |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT HOOD SUB-ASSEMBLY
(a) Check that the clearance measurements of areas A through E are within each
standard range.
Standard:
Area
Measurement
Area
Measurement
...
System Diagram
SYSTEM DIAGRAM
Transmitting ECU
(Transmitter)
Receiving ECU
Signal
Communication Method
Center Airbag Sensor
ECM
Crash detection signal
Fuel cut signa ...