PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2055

DTC Code DTC Name
B2055 Radar Sensor Malfunction

DESCRIPTION

This DTC is output when one of the following occurs: 1) an error in communication with the millimeter wave radar sensor assembly is detected, or 2) vehicle information sent from the radar sensor assembly is abnormal. If output, perform initialization on the radar sensor assembly to register the vehicle information to the radar sensor assembly.

DTC No. DTC Detection Condition Trouble Area
B2055 Radar sensor assembly malfunction is detected or initialization settings are faulty

  • CAN communication system

  • Millimeter wave radar sensor

  • Seat belt control ECU

INSPECTION PROCEDURE

Note

When the seat belt control ECU is replaced with a new one, Initialization must be performed Click here.

PROCEDURE


  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Clear the DTCs Click here.

    2. Recheck for DTCs.

      OK
      CAN communication system DTC is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. CHECK DTC OUTPUT (DYNAMIC RADAR CRUISE CONTROL SYSTEM)


    1. Turn the cruise control main switch on.

    2. Drive the vehicle at a speed of 45 km/h (27 mph) or more.

    3. Check for dynamic radar cruise control system DTC Click here.

      OK
      Dynamic radar cruise control system DTC is not output.

    NG

    GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM Click here

    OK

  3. CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)


    1. Clear the DTCs Click here.

    2. Recheck for DTCs.

      OK
      DTC B2055 is not output.

    NG

    REPLACE SEAT BELT CONTROL ECU Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) Click here