Lexus NX: Rear Left Center Sensor Malfunction (C1AE7)
DESCRIPTION
The rear center ultrasonic sensor (RLC sensor) is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear center ultrasonic sensor (RLC sensor). If the rear center ultrasonic sensor (RLC sensor) 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 (RLC sensor). |
|
CAUTION / NOTICE / HINT
NOTICE:
If DTCs are output after repairs, turn the power switch on (IG) and the intuitive parking assist system on. Then clear the DTCs.
Click here .gif)
PROCEDURE
| 1. | CHECK DTC OUTPUT |
(a) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| No DTCs are output | A |
| Only DTC C1AE7 is output | B |
| DTC C1AE7 and C1AED are output | C |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| C | | GO TO DTC (C1AED) |
|
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| 2. | REPLACE REAR CENTER ULTRASONIC SENSOR (RLC SENSOR) |
(a) Replace the rear center ultrasonic sensor (RLC sensor) with a known good one.
Click here
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.
Click here
(b) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| No DTCs are output | A |
| DTC C1AE7 is output | B |
| A | | END (REAR CENTER ULTRASONIC SENSOR [RLC SENSOR] WAS DEFECTIVE) |
| B | | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
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SEE MORE:
On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: Be sure to follow the correct removal and installation procedures of the front airbag sensors. PROCEDURE 1. INSPECT FRONT AIRBAG SENSOR (for Vehicle not Involved in Collision) (a) Perform a diagnostic system check. Click here 2. INSPECT FRONT
Parts Location
PARTS LOCATION ILLUSTRATION *1 FRONT SEAT OUTER BELT ASSEMBLY LH *2 FRONT SEAT OUTER BELT ASSEMBLY RH *3 FRONT SEAT AIRBAG ASSEMBLY LH *4 FRONT SEAT AIRBAG ASSEMBLY RH *5 CURTAIN SHIELD AIRBAG ASSEMBLY LH *6 CURTAIN SHIELD AIRBAG ASSEMBLY RH *7 FRONT SEAT CUSHION
