DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:P1578

DTC Code DTC Name
P1578 Brake System Malfunction

DESCRIPTION

This DTC is stored when the VSC system has a problem. Check the VSC system when this DTC is output.

DTC No. Detection Item DTC Detection Condition Trouble Area
P1578 Brake System Malfunction The ECM receives a brake system error signal for approximately 0.2 seconds or more while the dynamic radar cruise control is operating.

  • VSC system

  • ECM

Tech Tips

This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more CAN communication system DTCs are stored.

WIRING DIAGRAM

A018JIBE69
*1 Skid Control ECU (Brake Actuator Assembly)
*2 CAN Communication Line

PROCEDURE


  1. CHECK FOR DTCS (ABS/VSC/TRC)


    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/TRC / Trouble Codes.

    5. Check for DTCs.


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    6. Turn the engine switch off.


    A

    REPLACE ECM Click here

    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here