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If the right-side Blind Spot Monitoring (BSM) control module is replaced for any reason, it is also necessary to replace the left-side BSM control module in order to complete the radar aiming procedure. If the right-side BSM control module is replaced alone, "Automatic Configuration" and "BSM Radar Aiming" cannot be completed due to a programming error in the module. Other possible symptoms that may be found if the right-side BSM module is replaced alone: BSM aiming fails, “BSM OFF" indicator ON, Center Display warning message, BSM failsafe (No operation), DTC U3000:54 stored in memory, DTC U1A4B:54 stored in memory (CX-3, MX-5 only).