PRE-COLLISION SYSTEM, Diagnostic DTC:C1A10

DTC Code DTC Name
C1A10 Front Radar Sensor

DESCRIPTION

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

Based on this information, the driving support ECU assembly sends pre-collision control operation signals.

When the driving support ECU assembly receives information that there is a malfunction in the millimeter wave radar sensor assembly, DTC C1A10 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A10 Front Radar Sensor When the engine switch is on (IG), the driving support ECU assembly receives information that there is a malfunction in the millimeter wave radar sensor assembly for approximately 2 seconds.

  • Millimeter wave radar sensor assembly

  • Driving support ECU assembly

INSPECTION PROCEDURE

Note


  • When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed Click here.

  • When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.

PROCEDURE


  1. REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY


    1. Replace the millimeter wave radar sensor assembly with a new one Click here.


    NEXT

  2. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY


    1. Perform millimeter wave radar sensor assembly adjustment Click here.


    NEXT

  3. CHECK FOR DTC (PRE-COLLISION 2)


    1. Connect the Techstream to the DLC3.

    2. Turn the engine switch on (IG).

    3. Clear the DTCs Click here.

    4. Make sure that the DTC detection conditions are met.

      Tech Tips

      If the detection conditions are not met, the system cannot detect the malfunction.

    5. Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.

    6. Check for DTCs.

      OK
      DTC C1A10 is not output.

    NG

    REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here

    OK

    END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE)