Lexus NX: Front Radar Sensor Optical Axis Misalignment Malfunction (C1A1100)
DESCRIPTION
The millimeter wave radar sensor assembly performs self-diagnosis to check for misalignment of its beam axis. If misalignment is detected, the millimeter wave radar sensor assembly stores DTC C1A1100.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1A1100 | Front Radar Sensor Optical Axis Misalignment Malfunction | When the power switch is on (IG), the millimeter wave radar sensor assembly detects beam axis misalignment |
|
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.
-
When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly adjustment and front radar acceleration sensor calibration, and to clear the vehicle control history.
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PROCEDURE
| 1. | ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
(a) Perform millimeter wave radar sensor assembly beam axis adjustment.
Click here
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| 2. | CHECK FOR DTC |
(a) Clear the DTCs.
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(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
OK:
DTC C1A1100 is not output.
| OK | .gif) | END (OPTICAL AXIS ADJUSTMENT WAS DEFECTIVE) |
| NG | | REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
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Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Power Steering System DTC No. Detection Item Warning Indicate Return-to-normal Condition Note Link C1511 Torque Sensor1 On Power switch on (IG) again - C1512 Torque Sensor2 On Power switch on (IG) again - C1513 Torque
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure described below is for the LH side.
PROCEDURE 1. REMOVE REAR BUMPER ASSEMBLY Click here 2. REMOVE TONNEAU COVER ASSEMBLY Click here 3. REMOVE DECK BOARD ASSEMBLY Click here 4. REMOVE R
