System Inspection

1. Visual Inspection
   1. Check the air hose between MAFS and throttle body is torn or installation.
   2. Check deformation, crack or installation of throttle valve (body)
   3. Has a problem been found?

      YES 

      • Substitute with a known-good Air hose or throttle body and check for proper operation.

      If the problem is corrected, replace air hose or throttle body and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      • Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE: There is a memory reset function on scan tool that can erase optional parts automatically detected and memorized by ECM.
      Before or after testing ECM on the vehicle, use this function before reusing the ECM

Procedure of ETS Initialization 

1. Erase the trouble codes on ECM
2. Turn the ignition key off and keep this condition until the main relay is turned off.(10 sec.)
3. Turn ignition key on more than 1second to record the throttle motor position on the EEPROM