Lexus ES: 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 LH. If the rear center ultrasonic sensor LH has an open circuit or other malfunction, it will not function normally.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AE7 | Rear Left Center Sensor Malfunction | A malfunction of the rear center ultrasonic sensor LH. |
|
CAUTION / NOTICE / HINT
NOTICE:
If DTCs are output after repairs, turn the power 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 C1AE7 is output | A |
| DTC C1AE7 and C1AED are output | B |
| No DTCs are output | C |
| B | .gif) | GO TO DTC (C1AED) |
| C | | USE SIMULATION METHOD TO CHECK |
|
| 2. | REPLACE REAR CENTER ULTRASONIC SENSOR LH |
(a) Replace the rear center ultrasonic sensor LH 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 C1AE7 is output | A |
| No DTCs are output | B |
| A | | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
| B | | END (REAR LEFT CENTER SENSOR WAS DEFECTIVE) |
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Rear Right Center Sensor Malfunction (C1AE8)
DESCRIPTION The rear center ultrasonic sensor RH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear center ultrasonic sensor
Rear Right Sensor Malfunction (C1AE9)
DESCRIPTION The rear corner ultrasonic sensor RH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear corner ultrasonic sensor
Front Sensor Communication Malfunction (C1AEC)
DESCRIPTION This DTC is stored when there is an open or short circuit in the communication line between the front sensors and the ECU, or when there is a malfunction in a front sensor. DTC No. De
SEE MORE:
Installation
INSTALLATION 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. INSTALL REAR DOOR OPENING TRIM WEATHERSTRIP (a) Align the alignment mark on the rear door opening trim weatherstrip with the flange on the v
Customization
Customizable features
Your vehicle includes a variety of
electronic features that can be personalized
to your preferences. The
settings of these features can be
changed by using the meter control
switches, the Remote Touch or at
your Lexus dealer.
Customizing vehicle features
■ Changing b
