PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1A12

DTC Code DTC Name
C1A12 Rear Radar Sensor

DESCRIPTION

The driving support ECU uses the front millimeter wave radar sensor, rear millimeter wave radar sensor, driver monitor camera and object recognition camera sensor to detect obstacles in front of and behind the vehicle, and detect the direction that the driver's head is facing. Based on this information, the driving support ECU sends pre-crash control operation signals.

When the driving support ECU receives information that there is a malfunction in the rear millimeter wave radar sensor, DTC C1A12 is output.

DTC Code DTC Detection Condition Trouble Area
C1A12 While the engine switch is on (IG), driving support ECU receives information that there is malfunction in rear millimeter wave radar sensor for 1 second

  • Rear millimeter wave radar sensor

  • Driving support ECU

INSPECTION PROCEDURE

PROCEDURE


  1. REPLACE REAR MILLIMETER WAVE RADAR SENSOR


    1. Replace the rear millimeter wave radar sensor Click here.


    NEXT

  2. ADJUST REAR MILLIMETER WAVE RADAR SENSOR


    1. Adjust the rear millimeter wave radar sensor Click here.


    NEXT

  3. CHECK DRIVING SUPPORT ECU


    1. Using the intelligent tester, enter the following menus: Body / Pre-Crash2 /. Then select "Diagnostic Code".

    2. Select "Clear" and clear the data.

    3. Recheck for DTC.

      OK
      DTC C1A12 is not output.

    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

    END