SFI SYSTEM, Diagnostic DTC:P0657

DTC Code DTC Name
P0657 Actuator Supply Voltage Circuit / Open

DESCRIPTION

The ECM monitors the voltage output to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage is usually 0 V when the ignition switch is turned off. If the output voltage is 7 V or higher when the ignition switch is turned off, the ECM will illuminate the MIL and store this DTC when the ignition switch is turned to ON.

DTC No. DTC Detection Condition Trouble Area
P0657 There is a throttle actuator power supply error (1 trip detection logic). ECM

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK WHETHER DTC OUTPUT RECURS (DTC P0657)


    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. Turn the ignition switch off.

    6. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

    7. Connect the cable to the negative (-) battery terminal.

    8. Turn the ignition switch to ON for 10 seconds.

    9. Turn the ignition switch off.

    10. Turn the ignition switch to ON.

    11. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    12. Read the DTCs.

      Result
      Result Proceed to
      P0657 is output A
      No DTC is output B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

    REPLACE ECM Click here