DTC C1A01: Driving Support ECU [09/2014 - 10/2015]: Procedure

CHECK FOR DTC (PRE-COLLISION SYSTEM)
1. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
  OK
  
  DTC C1A01 is not output.
  
  NOTE:
  When replacing the driving support ECU, always replace it with a new one and be sure to perform initialization (Refer to INITIALIZATION [09/2014 - 10/2015] ). If an ECU which was installed to another vehicle is used, the information stored in the ECU will not match the information from the vehicle, and as a result, a DTC may be stored.
Result:

OK

USE SIMULATION METHOD TO CHECK

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

Result:

NG

REPLACE DRIVING SUPPORT ECU

(Refer to REMOVAL [09/2014 - 10/2015] )