Town & Country Van AWD V6-230 3.8L VIN L SMFI (1998)
Trip Computer: Testing and Inspection
Testing
The Compass Mini Trip Computer (CMTC) is capable of performing a diagnostic self check on many of its internal functions. CMTC diagnostics may
be performed using a scan tool and the proper Body Control Module Testing and Inspection Procedures or by using the following procedure.
1. With the ignition switch in the OFF position, press both the US/M and STEP buttons.
2. Turn ignition switch to the ON position. The CMTC will perform internal checks while lighting all segments of the vacuum florescent display.
Upon completion of the internal check the CMTC will display.
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PASS
-
FAIL
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CCD
If any segment of the CMTC fails to light replace the module.
If FAIL is displayed replace the module.
If CCD is displayed check the CCD (Information Bus) and Body Control Module (BCM) for proper operation. If the CCD bus and the BCM
are OK, replace the CMTC module.
Additional diagnostic trouble code information can be found at Body Control Module, Testing and Inspection, Diagnostic Charts. See: Body and
Frame/Body Control Systems/Body Control Module/Testing and Inspection
