DTC C1A0A: Front Radar Sensor Region Code Mismatch [11/2017 - 01/2023]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - 01/2023]

   Body Electrical > Pre-Collision 2 > Clear DTCs 

2. Perform the following procedure.

   HINT: 

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

   1. Turn the engine switch on (IG) and wait 2 seconds or more.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - 01/2023]

   Body Electrical > Pre-Collision 2 > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1A0A is not output	A
   DTC C1A0A is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 03/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2019 - 09/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2020 - 01/2023] 

Result: 

B 

See step  2

1. Replace the driving support ECU assembly.

   Refer to REMOVAL [09/2014 - 01/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - 01/2023]

   Body Electrical > Pre-Collision 2 > Clear DTCs 

2. Perform the following procedure.

   HINT: 

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

   1. Turn the engine switch on (IG) and wait 2 seconds or more.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - 01/2023]

   Body Electrical > Pre-Collision 2 > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1A0A is not output	A
   DTC C1A0A is output	B

Result: 

A 

END (DRIVING SUPPORT ECU ASSEMBLY WAS DEFECTIVE) 

Result: 

B 

See step  4

1. Replace the millimeter wave radar sensor assembly.

   Refer to REMOVAL [11/2017 - 01/2023]

2. Adjust the millimeter wave radar sensor assembly.

   Refer to ADJUSTMENT [11/2017 - 03/2019] , or refer to ADJUSTMENT [03/2019 - 01/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE)