DESCRIPTION
The No. 1 ultrasonic sensor (front left sensor) is installed on the front bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (front left sensor). If the No. 1 ultrasonic sensor (front left sensor) has an open circuit or other malfunction, it will not function normally.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1AE1 |
A malfunction of the No. 1 ultrasonic sensor (front left 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 C1AE1 is output |
A |
DTC C1AE1 and C1AEC are output |
B |
No DTCs are output |
C |
B |
GO TO DTC (C1AEC) |
C |
USE SIMULATION METHOD TO CHECK |
|
2. |
REPLACE NO. 1 ULTRASONIC SENSOR (FRONT LEFT SENSOR) |
(a) Replace the No. 1 ultrasonic sensor (front left 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 C1AE1 is output |
A |
No DTCs are output |
B |
A |
REPLACE CLEARANCE WARNING ECU ASSEMBLY |
B |
END |
Inspection
INSPECTION
PROCEDURE
1. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
(a) Turn the roller by hand to check that it turns smoothly.
If the roller does not turn smoothly, replace the No. 1 valve rocker
arm sub-assembly.
...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repair" after replacing the fuel pump assembly (See
page ).
PROCEDURE
1. DISCHARGE FUEL SYSTEM PRESSURE
(a) Discharge fuel system pressure (See page
).
2. DISCONNECT CABLE FR ...
Operation Check
OPERATION CHECK
1. NOTICE WHEN CHECKING THE FOLLOWING
(a) Power door lock/unlock function:
This wireless door lock control function operates only when the following 3 conditions
are met:
(1) The engine switch is off.
(2) All doors are closed.
(3) The p ...