Description

DESCRIPTION

The NV144 is an electronically controlled, single-speed, AWD transfer case.


The geartrain is mounted in two aluminum case halves attached with bolts.


OPERATING RANGES


Transfer case operating ranges are:

- AWD (All-wheel drive)
- 4HI (4-wheel drive)

The AWD range is for use on any road surface at any time.


The 4HI range is for off road use only. It is not for use on hard surface roads. The only exception being when the road surface is wet or slippery or covered by ice and snow.


SHIFT MECHANISM


Operating ranges are selected with a dash mounted shift selector switch. The shift selector switch provides a input to the Front Control Module (FCM) to indicate the driver's desire to change operating ranges. The FCM uses this input, along with input from the transfer case mounted mode sensor and information from the vehicle's bus, to determine if a shift is permitted. If the FCM decides the shift is permitted, the FCM controls the shift motor, mounted to the exterior of the transfer case, to perform the shift.


IDENTIFICATION






A circular ID tag is attached to the rear case of each transfer case. The ID tag provides the transfer case model number, assembly number, and serial number.


The transfer case serial number also represents the date of build.