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 assembly to detect obstacles in front of the vehicle. Based on this information, the driving support ECU calculates the risk of a crash and operates the pre-crash safety system when it determines that the risk is high.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

C1A01

Driving Support ECU

While the initial check is running, the engine on (IG) and the pre-crash safety system is operating, the driving support ECU detects an internal malfunction for 1 second.

Driving support ECU

Driving Support ECU (Pre-Crash 2)

PROCEDURE

  1. CHECK FOR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Pre-Crash > Clear DTCs

    2. Check for DTCs.

      Click here

      Body Electrical > Pre-Crash > Trouble Codes

      OK

      DTC C1A01 is not output.

      Result

      Result

      OK

      NG
    OK

    USE SIMULATION METHOD TO CHECK

    Click here

    NG

    REPLACE DRIVING SUPPORT ECU

    Click here