When Servicing Full-Time 4WD Vehicles

WHEN SERVICING FULL-TIME 4WD VEHICLES







The full-time 4WD LEXUS LX470 is equipped with a mechanical lock type center differential system. During tests using a brake tester or chassis dynamometer, such as braking force tests or speedometer tests, if only the front or rear wheels are to be rotated, it is necessary to set the position of the center differential to FREE or LOCK depending on the type of the test being performed.

HINT: w/o Vehicle Stability Control (VSC) system:

When the transfer select lever is put in the "L" position, the center differential is put in the LOCK condition regardless of the position of the center differential lock switch.

CAUTION: Center differential "LOCK"<-->"FREE" selecting procedure:
- Operate the switch only when all 4 wheels are stopped or driven in a straight line.
- Never operate the switch when any wheel is slipping.
- Never operate the switch when any wheel if spinning freely.
- Never operate the switch when swerving or cornering.


HINT:
- Center differential "LOCK"<-->"FREE" selecting procedure:
Move the vehicle forward or backward slightly if the indicator light does not operate correctly when the center differential lock switch is turned ON or OFF.




- Transfer gear "H"<-->"L" gear shifting procedure:
When shifting, always put the shift lever of the transmission in the N position. In other positions, the gears of the transfer clash, and switching cannot be performed.