PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1A01

DTC Code DTC Name
C1A01 Driving Support ECU

DESCRIPTION

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

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

DTC No. DTC Detection Condition Trouble Area
C1A01 When the power switch is on (IG), the driving support ECU assembly detects an internal malfunction for approx. 2 seconds. Driving support ECU assembly

PROCEDURE


  1. CHECK DTC OUTPUT (PRE-CRASH SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus:


      1. Body Electrical / Pre-Crash 2 / Trouble Codes.

    5. Clear the DTCs Click here.

    6. Recheck for DTCs.

      OK
      DTC C1A01 is not output.

    OK

    CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) Click here

    NG

    REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here