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Home >> Jeep >> 2004 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Diagnostic Procedures >> System Description And Functional Operation >> Body Control Module >> Overhead Console >> Electronic Vehicle Information Center (EVIC) >> Self-Check Diagnostics
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Self-Check Diagnostics

The EVIC is capable of performing a diagnostic self check on its internal functions. EVIC diagnostics may be performed using a DRBIII® or by using the following procedure:

  1. With the ignition switch in the OFF position, depress and hold the RESET and the C/T buttons.
  2. Turn the ignition switch to the ON position.
  3. Continue to hold both buttons until the software versions are displayed, then release the buttons.
  4. When the self-check is complete the EVIC will display one of the following messages:
    • PASSED SELF TEST
    • FAILED SELF TEST
    • FAILED J1850 COMMUNICATION
  5. To exit the self-check mode, depress the RESET button or cycle the ignition switch and the EVIC will return to normal operation.

If a Communication fault is displayed, refer to COMMUNICATION . If a FAILED SELF TEST is displayed, the EVIC must be replaced.