Functions of Indicator Lamp - 4WD Indicator Faults
Before Judging That Troubles Occur (Unfaulty mode)When Switching from 2WD to 4WD
1. In case that blinking frequency of the 4WD indicator changes from 2Hz to 4Hz.
When heavy synchronization load is needed, the motor actuator tries the shifting transfer gear three times including the activation shifting. While the motor actuator tries shifting, the indicator blinks by 2Hz. If the third shifting fails, the indicator's blinking changes from 2Hz to 4Hz at the same time that the motor actuator shifted back to 2WD.
Heavy synchronization load occurs by:
^ extremely lower temperature.
^ higher speed, rotation difference of wheels during cornering.
Solution 1: Operate again after stop the vehicle or slow down.
2. In case that the 4WD indicator continues blinking by 2Hz for more than 11.5 seconds.
When there is rotation difference of wheels or there is phase difference between front wheels and axles, it is difficult to connect front wheels to front axles. The blinking by 2Hz shows that shifting the transfer gear or connecting the front wheels is in the middle of operating. In above case, the indicator's blinking by 2Hz shows that connecting the front wheels is not completed (because the indicator's blinking changes to 4Hz when the shifting transfer gear is impossible.). And removal of rotation or phase difference make connecting the front wheels possible.
Solution 2: When vehicle is running, drive straight ahead while accelerating and decelerating. When vehicle is at a stop, move the vehicle forward and backward from 2 to 3 meters.
When switching from 4WD to 2WD
1. In case that the 4WD indicator continues blinking by 2Hz.
The 4WD indicator continues blinking by 2Hz until both shifting the transfer gear and disconnecting the front wheels are completed when switching 4WD to 2WD. When driveline is loaded with torsional torque, the shifting transfer gear and disconnecting front wheels are impossible. In this case, removal of torsional torque on driveline, make the shifting transfer gear and disconnecting front wheels possible.
Solution 3: When vehicle is running, drive straight ahead while accelerating and decelerating. When vehicle is at a stop, move the vehicle forward and backward from 2 to 3 meters.
2. In case that the 4WD indicator's blinking changes from 2Hz to 4Hz.
Check the position of transfer lever. Is it at "4L" position? In view of the shifting mechanism of transfer, the gear shifting from 4WD to 2WD at "4L" condition is impossible.
Solution 4: Push the 4WD switch to 4WD, shift the transfer lever to "High" position and re-operate the 4WD switch to 2WD.