CRUISE CONTROL SYSTEM, Diagnostic DTC:P1578

DTC Code DTC Name
P1578 Brake System Malfunction

DESCRIPTION

This DTC is output when the vehicle stability control system has a problem. Check the vehicle stability control system when this DTC is output.

DTC Code DTC Detection Condition Trouble Area
P1578

  • The cruise control system is operating

  • There is a brake system malfunction

  • Vehicle stability control system

  • ECM

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)


    1. Clear the DTC Click here.

    2. Recheck for DTC Click here.

      OK
      Vehicle stability control system DTC is not output.

    NG

    GO TO VEHICLE STABILITY CONTROL SYSTEM

    OK

  2. CHECK FOR DTC (CRUISE CONTROL SYSTEM)


    1. Clear the DTC Click here.

    2. Recheck for DTC Click here.

      OK
      DTC P1578 is not output.
      Result
      Result Proceed to
      OK A
      NG (for 2GR-FSE) B
      NG (for 4GR-FSE) C

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    A

    USE SIMULATION METHOD TO CHECK Click here