Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000012V41
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 - 10/2020]
Title: CRUISE CONTROL: FORWARD RECOGNITION CAMERA SYSTEM: C1A0A; Front Radar Sensor Region Code Mismatch; 2018 - 2020 MY Camry [03/2017 - 10/2020]

DTC

C1A0A

Front Radar Sensor Region Code Mismatch

DESCRIPTION

The forward recognition camera receives necessary information from the millimeter wave radar sensor assembly.

When the forward recognition camera judges that a millimeter wave radar sensor assembly which is not compatible with the vehicle has been installed, DTC C1A0A is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A0A

Front Radar Sensor Region Code Mismatch

After the ignition switch is turned to ON for 3 seconds or more, the forward recognition camera detects that a millimeter wave radar sensor assembly which is not compatible with the vehicle is installed for 5 seconds or more.
  • Millimeter wave radar sensor assembly
  • Forward recognition camera

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
  • If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.

    Click here 2018 - 2020 MY Camry [03/2017 - 10/2020]; CRUISE CONTROL: FRONT CAMERA: ADJUSTMENT (SEQUENTIAL RECOGNITION)

  • 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. As a result, a DTC may be stored.
  • If the millimeter wave radar sensor assembly has been replaced, be sure to perform millimeter wave radar sensor assembly adjustment.

    Click here 2018 MY Camry [03/2017 - 06/2017]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT 2018 - 2020 MY Camry [06/2017 - 10/2020]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT

PROCEDURE

1.

CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)

(a) Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

(b) Perform the following procedure.

HINT:

If the following procedure is not performed, the previously output DTC cannot be detected.

  1. Turn the ignition switch to ON and wait 8 seconds or more.

(c) Check for DTCs.

Chassis > Front Recognition Camera > Trouble Codes

Result

Proceed to

DTC C1A0A is not output

A

DTC C1A0A is output

B
A

USE SIMULATION METHOD TO CHECK 2018 MY Camry [03/2017 - 06/2017]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2018 MY Camry [06/2017 - 08/2018]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2019 MY Camry [08/2018 - 09/2019]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry [09/2019 - 03/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry [03/2020 - 10/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

B

2.

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY

(a) Replace the millimeter wave radar sensor assembly.

Click here 2018 - 2020 MY Camry [03/2017 - 10/2020]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: REMOVAL

(b) Adjust the millimeter wave radar sensor assembly.

Click here 2018 MY Camry [03/2017 - 06/2017]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT 2018 - 2020 MY Camry [06/2017 - 10/2020]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT

NEXT

3.

CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)

(a) Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

(b) Perform the following procedure.

HINT:

If the following procedure is not performed, the previously output DTC cannot be detected.

  1. Turn the ignition switch to ON and wait 8 seconds or more.

(c) Check for DTCs.

Chassis > Front Recognition Camera > Trouble Codes

Result

Proceed to

DTC C1A0A is not output

A

DTC C1A0A is output

B
A

END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE)
B

REPLACE FORWARD RECOGNITION CAMERA