DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:P1578

DTC Code DTC Name
P1578 Brake System Malfunction

DESCRIPTION

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

DTC No. DTC Detection Condition Trouble Area
P1578 The ECM receives a brake system error signal for 0.2 sec. 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 DTCs in the CAN communication system are output.

WIRING DIAGRAM

A01G8R1E63

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTCs (ABS/VSC/TRAC)


    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 / Trouble Codes.

    5. Check for DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

    6. Turn the engine switch off.


    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    A

    REPLACE ECM Click here