Lexus NX: Rear Right Center Sensor Malfunction (C1AE8)
DESCRIPTION
The rear center ultrasonic sensor (RRC sensor) is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear center ultrasonic sensor (RRC sensor). If the rear center ultrasonic sensor (RRC sensor) has an open circuit or other malfunction, it will not function normally.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AE8 | Rear Right Center Sensor Malfunction | A malfunction of the rear center ultrasonic sensor (RRC 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.
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PROCEDURE
| 1. | CHECK DTC OUTPUT |
(a) Check for DTCs.
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| Result | Proceed to |
|---|---|
| No DTCs are output | A |
| Only DTC C1AE8 is output | B |
| DTC C1AE8 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 (RRC SENSOR) |
(a) Replace the rear center ultrasonic sensor (RRC sensor) with 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.
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(b) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| No DTCs are output | A |
| DTC C1AE8 is output | B |
| A | | END (REAR CENTER ULTRASONIC SENSOR [RRC SENSOR] WAS DEFECTIVE) |
| B | | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
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Inspection
INSPECTION PROCEDURE 1. INSPECT AIR CONDITIONING CONTROL ASSEMBLY (SEAT BELT WARNING LIGHT) (for Rear Side) (a) Check the seat belt warning light illumination. OK: Measurement Condition Specified Condition Battery positive (+) → Terminal 8 (IG+) Battery negative (-) → 1 (RRID) RH
Black Screen
PROCEDURE 1. CHECK DISPLAY SETTING (a) Check that the display is not in screen off mode. OK: The display setting is not in screen off mode. NG CHANGE SCREEN TO SCREEN ON MODE
OK 2. CHECK IMAGE QUALITY SETTING (a) Check that the display settings (contrast,
