Pacifica V6-3.8L VIN L (2005)
Compass: Description and Operation
Compass Minitrip
The Compass Mini-Trip Computer (CMTC) is a module located in the overhead console. On CS vehicle's the CMTC module display screen is located in
the instrument cluster.
The Compass Mini-Trip Computer module contains a central processing unit and interfaces with other electronic modules in the vehicle over the
Programmable Communications Interface PCI data bus circuit.
The CMTC module uses its internal programming and all of its data inputs to calculate the requested data. This data includes the Tire Pressure
Monitoring, Compass information, Universal Transmitter, Average Fuel Economy (AFE), Distance To Empty (DTE) and Distance To Service (DTS).
The compass mini-trip computer module cannot be repaired, and is available for service only as a unit. This unit includes the plastic module. If the
CMTC module is faulty or damaged, the complete module must be replaced.
The Compass Mini-Trip Computer is wired to both non-switched and ignition switched sources of battery current so that some of its features remain
operational at any time, while others may only operate with the ignition switch in the On position. Information collected in the CMTC module is sent to
the instrument cluster display via the PCI data bus circuit.
The information collected or generated in the compass mini-trip computer module includes tire pressure monitoring, compass and universal transmitter
information.