Compass Mini-Trip Computer Messages

The Compass Mini-Trip Computer will not display information for any of the screens for which it did not receive the proper data over the Programmable Communication Interface (PCI) data bus for that particular screen. Refer to DIAGNOSIS AND TESTING - COMPASS MINI-TRIP COMPUTER  for more information.

The Compass Mini-Trip Computer receives the following messages from the Body Control Module (BCM):

1. Verification of US/M Status
2. Display Brightness (Dimming) and Lamp Status
3. Trip Odometer Data
4. Elapsed Ignition On Time Data
5. Fuel Efficiency (Average and Instantaneous)
6. Distance to Empty
7. Outside Temperature

The Compass Mini-Trip Computer transmits the following messages to the Body Control Module (BCM):

1. Status Request : Beep, Reset, US/M Toggle
2. Current Display
3. Compass Heading

The Compass Mini-Trip Computer receives the following message from the Single Board Engine Controller (SBEC):

1. Vehicle Speed