DESCRIPTION
The No. 1 ultrasonic sensor (rear left center sensor) is installed on the rear bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (rear left center sensor). If the No. 1 ultrasonic sensor (rear left center sensor) has an open circuit or other malfunction, it will not function normally.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1AE7 |
A malfunction of the No. 1 ultrasonic sensor (rear left center sensor). |
|
CAUTION / NOTICE / HINT
NOTICE:
If DTCs are output after repairs, turn the engine switch on (IG) and turn the clearance sonar main switch on. Then clear the DTCs (See page ).
PROCEDURE
1. |
CHECK DTC OUTPUT |
(a) Check for DTCs (See page ).
Result |
Proceed to |
---|---|
Only DTC C1AE7 is output |
A |
DTC C1AE7 and C1AED are output |
B |
No DTCs are output |
C |
B |
GO TO DTC (C1AED) |
C |
USE SIMULATION METHOD TO CHECK |
|
2. |
REPLACE NO. 1 ULTRASONIC SENSOR (REAR LEFT CENTER SENSOR) |
(a) Replace the No. 1 ultrasonic sensor (rear left center sensor) with a known good one (See page ).
HINT:
All of the sensors are interchangeable. To confirm whether a sensor is functioning normally, switch it with a known good sensor from the other end of the vehicle.
|
3. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
Result |
Proceed to |
---|---|
DTC C1AE7 is output |
A |
No DTCs are output |
B |
A |
REPLACE CLEARANCE WARNING ECU ASSEMBLY |
B |
END |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK RADIATOR CAP SUB-ASSEMBLY
(a) Measure the valve opening pressure.
(1) If there are water stains or foreign matter on rubber packings 1, 2 or 3,
clean the part(s) with water and finger scouring.
(2) Check that r ...
Precaution
PRECAUTION
1. INITIALIZATION
NOTICE:
Perform the Registration (VIN registration) when replacing the ECM (See page
).
HINT:
Reset memory or initialization cannot be completed by only disconnecting and
reconnecting the cable of the negative (-) battery ...
If the engine will not start
If the engine still does not start after following the correct starting procedure
(, 175) or releasing the steering lock (, 176), confirm the following points.
- The engine will not start even if you are carrying the correct key.
One of the followi ...