P0513 – Immobilizer Malfunction MMC L200 IV



FUNCTION

  • Engine-ECU sends or receives the control signals to or from ETACS-ECU to certify the ignition key.
    note
    • If the registered ignition keys are close each other when starting the engine, radio interference may cause this code to be displayed.
    • This code may be displayed when registering the key encrypted code.
  • If the registered ignition keys are close each other when starting the engine, radio interference may cause this code to be displayed.
  • This code may be displayed when registering the key encrypted code.

  • TROUBLE JUDGMENT

  • Ignition switch is in “ON” position.
  • The check result of the ETACS-ECU is not suitable for that of the engine-ECU.

  • PROBABLE CAUSES

  • Open/short circuit in immobilizer system circuit or loose connector contact
  • Failed ETACS-ECU
  • Failed engine-ECU

  • DIAGNOSIS PROCEDURE

    STEP 1. M.U.T.-III other system diagnosis code.

  • Confirm whether the diagnosis codes are output from ETACS-ECU.
  • Q. Is the diagnosis code output?

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