Loopback Failure
WARNING: This page is about a different car, the 2002 Dodge Grand Caravan, 2002 Dodge Caravan, 2002 Chrysler Voyager, and 2002 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.
Turn ignition on. Using scan tool, record and erase Body Control Module (BCM) DTCs. Turn ignition off. Wait 15 seconds. Turn ignition on. Recheck for DTCs. If LOOPBACK FAILURE resets, replace instrument cluster. See ANALOG INSTRUMENT PANELS article. If LOOPBACK FAILURE does not reset, test is complete.