DTC C1A01: Driving Support ECU [08/2014 - ]: Procedure

CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
1. Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
2. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2014 - ] .
3. Recheck for DTCs.
  OK
  
  DTC C1A01 is not output.
NG → See step 2

OK → See step 3
REPLACE DRIVING SUPPORT ECU. Refer to REMOVAL [08/2014 - ]
CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION). Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ]