Hyundai Tucson LM Quiz
Four-Wheel Drive (4WD) System

4WD ECU Repair Procedures

In this manual: Four-Wheel Drive (4WD) System
General Information — 1Engine Mechanical System — 44Engine Electrical System — 45Emission Control System — 24Engine Control System/Fuel System — 93Clutch System — 13Manual Transmission — 18Automatic Transmission — 87Four-Wheel Drive (4WD) System — 26Drive Shaft and Axle — 29Suspension System — 35Steering — 20Restraints — 47Brake System — 36Body (Interior and Exterior) — 53Body Electrical System — 202Heating, Ventilation, and Air Conditioning — 58
6steps
~36min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 6

Replacement

  1. Before replacing the 4WD ECU, check the 4WD ECU clutch learning values using the GDS tester. (Refer to All Wheel Drive Control System - "Adjustment")
  2. Disconnect the negative battery cable from the battery.
  3. Disconnect the AWD ECU connector (A).
  4. Loosen the bushing (A) and remove the 4WD ECU.

    Tightening torque: 9.8 ~ 11.8 N·m

Installation

  1. Install in the reverse order of removal.
  2. Before installing the new ECU, download the clutch learning data of the original ECU into the new ECU using the GDS tester. (Refer to All Wheel Drive Control System - "Adjustment")

Test yourself

A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.