Posted in MMC L200 P0513 – Immobilizer Malfunction MMC L200 IV Posted by admin Posted on September 28, 2020 FUNCTIONEngine-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 JUDGMENTIgnition switch is in “ON” position.The check result of the ETACS-ECU is not suitable for that of the engine-ECU.PROBABLE CAUSESOpen/short circuit in immobilizer system circuit or loose connector contactFailed ETACS-ECUFailed engine-ECUDIAGNOSIS PROCEDURESTEP 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? Author: admin