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 10sec. 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.