GF28.19-P-3100A Location/Task/Design/Function of Transfer Case Control Module

GF28.19-P-3100A Location/task/design/function of transfer case control module

Component Identification:

Task:
The transfer case control module (N78) determines the instantaneous operating condition of the transfer case and controls the shift sequences taking into account the driving situation in each case.

Function:
The transfer case control module (N78) receives input signals from the "Low Range" switch (S97/6) and the voltage supply from the battery (terminal 30) and from the ignition lock (terminal 15). In addition there is a connection to the engine control module (N3/10) via the CAN data bus as well as to the traction system control module (N47), transmission control module (N15/3) and the instrument cluster (A1).

After these input signals are evaluated the electric actuator motor (A55) is actuated which initiates the change of ratio in the transfer case.

Fault memory:
The fault codes of the transfer case are stored in the All-Activity-Module (N10) and can be read out with the HHT via the data link connector (DTC readout) (X11/4).