Visual Check
- Turn the ignition switch ON.
- Connect to the GDS and clear the DTC.
- Turn the ignition switch OFF.
- Connect and set the vehicle to "Vehicle Lift" and lift it safely.
- Check the installation of 4WD ECU if it is clogged (contaminated) by dirt or leaves: Such as foreign substance around connector.
If it is, clear them.
- Keep the engine ON.
- If DTC returns, replace 4WD ECU (X Refer to the procedure of replacing 4WD ECU)
* (Replacing 4WD ECU) S/W Management: Back-up/input learning value and conduct "TC Clutch Calibration".