CRUISE CONTROL: FRONT CAMERA SYSTEM (for Gasoline Model): C1A11,C1A14; Front Radar Sensor Incorrect Axial Gap; 2019 - 2021 MY Avalon [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001AONY
Model Year Start: 2019	Model: Avalon	Prod Date Range: [04/2018 - 08/2021]
Title: CRUISE CONTROL: FRONT CAMERA SYSTEM (for Gasoline Model): C1A11,C1A14; Front Radar Sensor Incorrect Axial Gap; 2019 - 2021 MY Avalon [04/2018 - 08/2021]

DTC

C1A11

Front Radar Sensor Incorrect Axial Gap

DTC

C1A14

Front Radar Sensor Beam Axis Not Adjusted

DESCRIPTION

The forward recognition camera uses the millimeter wave radar sensor assembly to detect obstacles in front of the vehicle.

When the vehicle is determined to be driving in a straight line or on a gradual curve based on signals from the yaw rate sensor etc., the millimeter wave radar sensor assembly performs self diagnosis to check if the sensor beam axis has deviated from the vehicle movement direction. When the millimeter wave radar sensor assembly beam axis has deviated, the forward recognition camera detects this, and stores DTC C1A11.

After installing a new millimeter wave radar sensor assembly, if sensor beam axis adjustment is not performed, DTC C1A14 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1A11	Front Radar Sensor Incorrect Axial Gap	2 seconds after the engine switch is turned on (IG), misalignment of the millimeter wave radar sensor assembly is detected for approximately 5 seconds.	Pre-collision system
C1A14	Front Radar Sensor Beam Axis Not Adjusted	2 seconds after the engine switch is turned on (IG), incompletion of the millimeter wave radar sensor assembly beam axis alignment is detected for approximately 5 seconds.	Pre-collision system

PROCEDURE

1.	GO TO PRE-COLLISION SYSTEM

HINT:

If DTC C1A11 or C1A14 is output by the front camera system, perform troubleshooting for the pre-collision system.

Click here

END