Lexus ES: Front Right Center Sensor (C1AE3)
DESCRIPTION
The front center ultrasonic sensor RH is installed to the front bumper. The clearance warning ECU assembly detects obstacles based on signals received from the front center ultrasonic sensor RH. If the front center ultrasonic sensor RH has an open circuit or other malfunction, it will not function normally.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AE3 | Front Right Center Sensor | A malfunction of the front center ultrasonic sensor RH. |
|
CAUTION / NOTICE / HINT
NOTICE:
If DTCs are output after repairs, turn the engine switch on (IG) and the parking support alert system on. Then clear the DTCs.
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PROCEDURE
| 1. | CHECK DTC OUTPUT |
(a) Check for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes| Result | Proceed to |
|---|---|
| Only DTC C1AE3 is output | A |
| DTC C1AE3 and C1AEC are output | B |
| No DTCs are output | C |
| B | .gif) | GO TO DTC (C1AEC) |
| C | | USE SIMULATION METHOD TO CHECK |
|
| 2. | REPLACE FRONT CENTER ULTRASONIC SENSOR RH |
(a) Replace the front center ultrasonic sensor RH with new or a known good one.
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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.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs(b) Check for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes| Result | Proceed to |
|---|---|
| DTC C1AE3 is output | A |
| No DTCs are output | B |
| A | | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
| B | | END (FRONT RIGHT CENTER SENSOR WAS DEFECTIVE) |
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Front Right Sensor Malfunction (C1AE4)
DESCRIPTION The front corner ultrasonic sensor RH is installed to the front bumper. The clearance warning ECU assembly detects obstacles based on signals received from the front corner ultrasonic sens
Rear Left Sensor Malfunction (C1AE6)
DESCRIPTION The rear corner ultrasonic sensor LH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear corner ultrasonic sensor
Rear Left Center Sensor Malfunction (C1AE7)
DESCRIPTION The rear center ultrasonic sensor LH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear center ultrasonic sensor
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE WINDSHIELD OUTSIDE MOULDING LH (a) Apply protective tape around the windshield outside moulding as shown in the illustration. Prote
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) The battery ECU assembly has a self-diagnosis system. If the computer, hybrid control system, or a component is not working properly, the ECU records the conditions that relate to the fault. The ECU also illuminates the master warning light in the combination meter a
