DTC C1A0A: Front Radar Sensor Region Code Mismatch [04/2018 - 08/2021]: Procedure

1. Clear the DTCs.

   Body Electrical > Pre-Collision 2 > Clear DTCs 

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   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 [04/2018 - ] 

Result: 

B 

See step  2

1. Replace the driving support ECU assembly.

   Refer to REMOVAL [04/2018 - 08/2021]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Clear the DTCs.

   Body Electrical > Pre-Collision 2 > Clear DTCs 

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   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 [04/2018 - 08/2021]

2. Adjust the millimeter wave radar sensor assembly.

   Refer to ADJUSTMENT [04/2018 - 08/2020] , or refer to ADJUSTMENT [08/2020 - 08/2021]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE)