DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:P1575

DTC Code DTC Name
P1575 Warning Buzzer Malfunction

DESCRIPTION

The skid control ECU (brake actuator assembly) receives an alarm demand signal from the driving support ECU assembly and operates the skid control buzzer assembly. The buzzer sounds to warn that the distance between the vehicle in front and this vehicle is decreasing.

DTC No. DTC Detection Condition Trouble Area
P1575 The ECM receives a buzzer abnormal signal for 0.2 sec. or more while the dynamic radar cruise control is operating.

  • Skid control buzzer assembly

  • Skid control buzzer circuit

  • Skid control ECU (brake actuator assembly)

  • ECM

Tech Tips

If the vehicle ahead in the same lane significantly decreases its speed or another vehicle moves in front of this vehicle, adequate deceleration cannot be applied and the vehicle-to-vehicle distance will shorten. At this time, the system sounds the buzzer and the master warning light blinks to inform the driver. This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

WIRING DIAGRAM

A01G6SSE12

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (DSS SIGNAL BUZZER)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.

      ABS/VSC/TRAC
      Tester Display Test Part Control Range Diagnostic Note
      DSS Signal Buzzer Skid control buzzer Buzzer ON/OFF Buzzer can be heard

    5. Select "Buzzer", and perform the Active Test.

      OK
      Skid control buzzer sounds.

    6. Turn the engine switch off.


    NG

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    OK

    REPLACE ECM Click here