DTC C1A0A: Front Radar Sensor Region Code Mismatch [10/2016 - 09/2020]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2016 - 09/2020]

   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 [10/2016 - 09/2020]

   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 [10/2016 - 10/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2017 - 09/2020] 

Result: 

B 

See step  2

1. Replace the driving support ECU assembly.

   Refer to REMOVAL [04/2013 - 09/2020]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2016 - 09/2020]

   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 [10/2016 - 09/2020]

   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 [10/2016 - 09/2020]

2. Adjust the millimeter wave radar sensor assembly.

   Refer to ADJUSTMENT [10/2016 - 09/2020]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE)