ACTUATOR TEST TABLE

M.U.T-III can be used to forcibly activate the electronic control coupling and indicators (4WD indicator and LOCK indicator) in the combination meter according to the following items.

note

If 4WD-ECU is deactivated by the fail-safe function, no actuator test can be performed.
As for the item No. 01, the chassis dynamometer is used to check the 4WD torque. A simple 4WD status check method, however, can be applied by checking whether a tight corner braking phenomenon appears during driving.

caution

When the item No. 01 is checked, the speed difference between front and rear wheels must be 5 km/h or lower. If the speed difference exceeds 5 km/h, 4WD-ECU changes from the actuator test mode to the normal control mode.

Actuator test specifications

Item No.	Check items	Driven component	Operating duration
01	4WD coupling control torque	Drive the electronic control coupling with the control torque of 0 N·m to 730 N·m.	Maximum 10 seconds
02	4WD mode	4WD LOCK	Maximum 1 minute
		4WD	Maximum 1 minute
		2WD	Maximum 1 minute