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Problems with gauge cluster and power locks. Recently, I disassembled the dash on my 2001 Cherokee Sport in order to replace the evap and heater cores. Everything seemed to be fine for about a week. Then, one day, the door locks stopped working. I replaced both modules with new ones, still didn't work. At the same time, I got the NO BUSS signal, and noticed that when I turned the headlights on, the tac and fuel gauge dropped off and the air bag light came on. When I tried the unlock/lock button on the DDM the horn honks and the rear defroster switch light comes on as well as the shift indicator lights. The windows seem to work fine. I have cleaned the cluster gauge contacts (several times), checked for broken wires to the DDM & PDM, checked fuses, grounds, etc.. Does anyone know what I'm missing? My next step is a new instrument panel connector.