GF28.19-P-3202GZ Transfer Case Actuator Motor, Component Description

GF28.19-P-3202GZ Transfer case actuator motor, component description
- with CODE (430) Offroad package

Component Identification:

The transfer case actuator motor is screwed into the rear housing half of the transfer case on the left in the direction of travel.

Task
The transfer case actuator motor is actuated by the transfer case control unit (N15/7) via a PWM signal. The transfer case actuator motor actuates either the interaxle differential lock or the "High/Low shift".

PWM stands for Pulse Width Modulation. The PWM signal is a digital signal with variable pulse widths (pulse durations).

Design
The transfer case actuator motor is a permanent magnet DC motor with worm gear. Integrated in the transfer case actuator motor are a Hall sensor with direction recognition and an NTC temperature sensor.

NTC stands for Negative Temperature Coefficient, i.e. its electrical resistance decreases as the temperature rises (NTC thermistor).