Compass: Testing and Inspection

DIAGNOSIS AND TESTING - REMOTE COMPASS MODULE

CAUTION: Do not place any external magnets, such as magnetic roof mount antennas, in the vicinity of the Remote Compass Module (RCM) located at the top center of the instrument panel. Do not place any electronic devices (cell phones, laptop computers, Personal Digital Assistants (PDAs), portable DVD players, etc.) on or near the instrument panel as the RCM performance may be affected. Do not use magnetic tools when servicing the RCM.

The Remote Compass Module (RCM) data is obtained from several components on the Controller Area Network (CAN) and Local Interface Network (LIN) Data Bus circuits. The RCM will not function properly if the bus messages from any of these components is not received. If no RCM data is displayed or the display indicates dashes "- -", check the CAN Data Bus circuit communications, the Instrument Cluster functions, the Remote Compass Module (RCM) and the Totally Integrated Power Module (TIPM). Should the RCM become disconnected, the instrument cluster display will go blank.

The use of a scan tool and the proper diagnostic procedures information are recommended for further testing of the RCM, the CAN Data Bus and Local Interface Network (LIN) Data Bus circuits. Refer to the appropriate wiring information for complete circuit schematic or connector pin-out information.