DTC C1A01: Driving Support ECU [08/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
5. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - ] ).
6. Make sure that the DTC detection conditions are met.

   HINT: 

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

7. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - ] ).
   RESULT
   
   

   Result	Proceed to
   DTC C1A01 is not output	A
   DTC C1A01 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK (SYMPTOM SIMULATION) 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - ] )

Result: 

B 

REPLACE DRIVING SUPPORT ECU ASSEMBLY 

(Refer to REMOVAL [08/2015 - ] )