CRUISE CONTROL SYSTEM, Diagnostic DTC:P057504, P057549

DTC Code DTC Name
P057504 Cruise Control System Internal Failure
P057549 Cruise Control Internal Electronic Failure

DESCRIPTION

This DTC indicates an abnormality in the ECM.

DTC No. DTC Detection Condition Trouble Area
P057504

When the following conditions are met:

0.4 sec. have passed after cruise cancel input signal (STP input) is input to the ECM

 ECM
P057549

When the following conditions are met:

0.4 sec. have passed after cruise cancel input signal (STP input) is input to the ECM

 ECM

INSPECTION PROCEDURE

Tech Tips

The ECM receives signals from each sensor to control all functions of the cruise control system. When a trouble code is detected, the fail-safe function remains on until the ignition switch is turned off.

PROCEDURE


  1. CHECK FOR DTCS (CRUISE CONTROL SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs Click here.

    5. Perform the following to make sure that the DTC detection conditions are met.

      Tech Tips

      If the detection conditions are not met, the malfunction cannot be detected.


      1. Drive the vehicle at a speed for which cruise control system operation is possible.

      2. Turn the cruise control system on using the cruise control switch (ON-OFF button).

      3. Push the cruise control switch to -/SET to begin control of vehicle speed using the cruise control system.

    6. Check for DTCs Click here.

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

    B

    REPLACE ECM Click here

    A

    USE SIMULATION METHOD TO CHECK Click here