CRUISE CONTROL SYSTEM, Diagnostic DTC:P1578

DTC Code DTC Name
P1578 Brake System

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 No.

Detection Item

DTC Detection Condition

Trouble Area

P1578

Brake System

The ECM receives a brake system error signal for 0.2 seconds or more.

  • Vehicle stability control system

  • Skid control ECU (brake actuator assembly)

  • ECM

CAUTION / NOTICE / HINT

Tip:

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.

PROCEDURE

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

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Trouble Codes.

    5. Check for DTCs.

      Click here

      Chassis > ABS/VSC/TRC > Trouble Codes

      Result

      Result

      Proceed to

      DTC is not output

      A

      DTC is output

      B
    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM

    Click here

    A

  2. CHECK FOR DTCs (DTC P1578)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Cruise Control / Trouble Codes.

    5. Clear the DTCs.

      Click here

      1. for 2AD-FTV, 2AD-FHV:

        Powertrain > Cruise Control > Clear DTCs

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

        Powertrain > Cruise Control > Clear DTCs

      3. for 2WW:

        Powertrain > Cruise Control > Clear DTCs

    6. Make sure that the DTC detection conditions are met.

      Tip:

      If the detection conditions are not met, the system cannot detect the malfunction.

    7. Enter the following menus: Powertrain / Cruise Control / Trouble Codes.

    8. Check for DTCs.

      Click here

      1. for 2AD-FTV, 2AD-FHV:

        Powertrain > Cruise Control > Trouble Codes

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

        Powertrain > Cruise Control > Trouble Codes

      3. for 2WW:

        Powertrain > Cruise Control > Trouble Codes

    Result

    Result

    Proceed to

    DTC is not output

    A

    DTC P1578 is output

    B
    A

    USE SIMULATION METHOD TO CHECK

    Click hereClick here

    B

  3. REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

    Click hereClick here

    Result

    Proceed to

    NEXT
    NEXT

  4. CHECK FOR DTCs (DTC P1578)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Cruise Control / Trouble Codes.

    5. Clear the DTCs.

      Click here

      1. for 2AD-FTV, 2AD-FHV:

        Powertrain > Cruise Control > Clear DTCs

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

        Powertrain > Cruise Control > Clear DTCs

      3. for 2WW:

        Powertrain > Cruise Control > Clear DTCs

    6. Make sure that the DTC detection conditions are met.

      Tip:

      If the detection conditions are not met, the system cannot detect the malfunction.

    7. Enter the following menus: Powertrain / Cruise Control / Trouble Codes.

    8. Check for DTCs.

      Click here

      1. for 2AD-FTV, 2AD-FHV:

        Powertrain > Cruise Control > Trouble Codes

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

        Powertrain > Cruise Control > Trouble Codes

      3. for 2WW:

        Powertrain > Cruise Control > Trouble Codes

    Result

    Result

    Proceed to

    DTC is not output

    A

    DTC P1578 is output

    B
    A

    END

    B

    REPLACE ECM

    for 2AD-FHV:Click here

    for 2AD-FTV:Click here

    for 2AR-FE:Click here

    for 3ZR-FAE:Click here

    for 3ZR-FE:Click here

    for 2WW:Click here