DTC U0323/U0423

MULTI-MODEL (EQUIPPED WITH MAZDA CONNECT). SOME VEHICLES (WITH MAZDA CONNECT) MAY EXHIBIT A CONDITION WHERE DTC U0323 (PCM)/U0423(ABS)/U3000(IC) CANNOT BE DELETED WHEN THE TPMS WARNING LIGHT FLASHES AND/OR THE TCS/DSC INDICATOR LIGHTS ARE ILLUMINATED. THIS CAN HAPPEN IF THE IGNITION IS TURNED OFF WITH 20 SECONDS AFTER THE IGNITION IS TURNED ON IN ONE OF THE FOLLOWING TWO SITUATIONS. 1. THE "ROOM" FUSE (ENGINE COMPARTMENT) IS NOT INSTALLED WHEN BATTERY LEVEL IS LOW. 2. THE CMU (CONNECTIVITY MASTER UNIT) IS NOT CONNECTED.