Engine Control Module (ECM): Replacement

Disconnect the ECM wiring connector.
Unscrew four bolts mounting on back of air cleaner assembly.

Fig 1: Identifying Bolts Mounting On Back Of Air Cleaner Assembly
Courtesy of HYUNDAI MOTOR CO.
Remove the ECM.
Install a new ECM.
Tightening torque: 1.0 ~ 1.2kgf.m
Write the VIN (Vehicle Identification Number) in a new ECM according to "VIN PROGRAMMING PROCEDURE ".
Perform the below procedures to program an new TPS adaptation into a new ECM.
CAUTION:
When replacing ECM or ETC throttle body, be sure to perform a new TPS adaptation using Hi-Scan (Pro).
1. Clear the previous TPS adaptation value using Hi-Scan (Pro).
  
  Fig 2: Hi-Scan Display - RESETTING ADAPTIVE VALUES
  Courtesy of HYUNDAI MOTOR CO.
  
  Fig 3: Hi-Scan Display - RESETTING ADAPTIVE VALUES
  Courtesy of HYUNDAI MOTOR CO.
2. Turn the ignition switch off, and then turn it on without cranking.
3. Wait for 10 sec. until TPS adaptation finishes.
NOTE:
The above procedures have to be performed under below conditions.
- Battery voltage > 10V
- Intake air temperature > 5.3°C
- 5.3°C < Coolant temperature < 99.8°C
Check a fault code (DTC) on Hi-Scan (Pro) if the TPS adaptation was successful.