ECM Neutral Mode Procedure

WARNING: This page is about a different car, the 2017 Hyundai Santa Fe Sport. However, it is still accessible from the selected car via links, so may be relevant.

After replacing the ECM of the vehicle with the immobilizer, the following procedure must be performed.
[If installing a used ECM]
1. Perform "ECM NEUTRAL MODE " procedure using GDS.
  (Refer to IMMOBILIZER SYSTEM Body Electrical System - )
2. After finishing "ECM Neutral Mode", perform "Key Teaching" procedure using GDS. (Refer to Body Electrical System - "IMMOBILIZER SYSTEM ")
  [If installing a new ECM]
  
  Perform "Key Teaching" procedure using GDS. (Refer to Body Electrical System - " IMMOBILIZER SYSTEM ")
After replacing the ECM of the vehicle with the smart key system (button start), the following procedure must be performed.
[If installing a used ECM]
1. Perform "ECM NEUTRAL MODE " procedure using GDS. (Refer to Body Electrical System - " SMART KEY ")
2. After finishing "ECM Neutral Mode", turn IGN ON then OFF using the smart key or start button. Then the ECM learns information on the smart key automatically.
  [If installing a new ECM]
  
  Turn IGN ON then OFF using the smart key or start button. Then the ECM learns information on the smart key automatically.