Dodge Ram 2004 - Average Fuel Economy Inaccurate or Wrong; Distance to Empty Inaccurate or Wrong; Elapsed Ignition on Time Inaccurate or Wrong; Trip Odometer Inaccurate or Wrong

Symptom List:
*AVERAGE FUEL ECONOMY INACCURATE OR WRONG
*DISTANCE TO EMPTY INACCURATE OR WRONG
*ELAPSED IGNITION ON TIME INACCURATE OR WRONG
*TRIP ODOMETER INACCURATE OR WRONG
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *AVERAGE FUEL ECONOMY
INACCURATE OR WRONG.
POSSIBLE CAUSES
CMTC
TEST ACTION APPLICABILITY
1 NOTE: Diagnose and repair any FCM, PCM, or Communication DTCs before
proceeding with this test.
NOTE: Ensure that the CMTC has been configured for the correct fuel tank
size. Use the DRBIIIt to verify or modify the fuel tank size configuration.
Perform the CMTC Self Test.
The self test can be performed with the DRBIIIt or manually using the following
procedure:
Turn the ignition off.
Press and hold the RESET and C/T buttons.
Turn the ignition on.
Continue to hold both buttons until the software version is displayed, then release
the buttons.
Observe the CMTC display when the self test is complete.
Did the CMTC display 9FAILED SELF TEST9?
All
Yes → Replace and configure the CMTC in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No → Test Complete.
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COMPASS/MINI-TRIP COMPUTER