PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1A01

DTC Code DTC Name
C1A01 Driving Support ECU

DESCRIPTION

The driving support ECU uses the millimeter wave radar sensor to detect obstacles in front of the vehicle.

Based on this information, the driving support ECU calculates the risk of a collision and operates the pre-crash safety system when it determines that the risk is high.

DTC Code DTC Detection Condition Trouble Area
C1A01 While the initial check is running, the engine switch is on (IG) and the pre-crash safety system is operating, an internal malfunction is detected in the driving support ECU for 2 seconds or more. Driving support ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC (PRE-CRASH SAFETY SYSTEM)


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      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 Click here. 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.


    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here