U1A4B · Comunicados do fabricante

MAZDA · 2026-01-13

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. In most cases, if the left-side BSM control module is replaced alone, "Automatic Configuration" and "BSM Radar Aiming" can be completed without any problem (See CAUTION below for more details). 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…

MAZDA · 2022-10-11

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)

MAZDA · 2019-03-28

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).

MAZDA · 2017-09-01

Some vehicles with Blind Spot Monitoring (BSM) may experience the following conditions (similar to when the BSM control modules detect dirt on the rear bumper surface): DTC U1A4B:97 - Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (blind spot monitoring (BSM) control module (RH)), DTC U3000:97 - Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (blind spot monitoring (BSM) control module (LH)), The BSM turns ?OFF? and the BSM OFF indicator turns ?ON? in the instrument cluster while driving, The BSM will not turn on again during the drive cycle, After cycling the ignition switch off and on again, the BSM operates normally, DTC U1A4B:97 or U3000:97 is stored in memory. To correct…

LAND ROVER · 2017-07-20

Issue: Land Rover has received reports where during diagnosis of the surround camera system the Diagnostic Trouble Code (DTC) B12BD-31 "Rear Camera - No Signal" and or U1A4B-49 "Control Module Processor B - Internal Failure" stored in the Image Processing Module B (IPMB). The DTC is a false flagging code that can lead to incorrect diagnosis of any camera related issue reported by the customer.

LAND ROVER · 2017-06-09

Issue: Land Rover has received reports where during diagnosis of the surround camera system the Diagnostic Trouble Code (DTC) B12BD-31 ?Rear Camera - No Signal? and or U1A4B-49 ?Control Module Processor B ? Internal Failure? stored in the Image Processing Module B (IPMB). The DTC is a false flagging code that can lead to incorrect diagnosis of any camera related issue reported by the customer.

MAZDA · 2015-12-10

BSM off indicator on with DTC U1A4B:97 or U3000:97

MAZDA · 2015-12-10

BSM OFF INDICATOR ON WITH DTC U1A4B:97 OR U3000:97. SOME VEHICLES WITH BLIND SPOT MONITORING (BSM) MAY EXPERIENCE THE FOLLOWING CONDITIONS (SIMILAR TO WHEN THE BSM CONTROL MODULES DETECT DIRT ON REAR BUMPERS SURFACE): BSM TURNS "OFF" AND BSM OFF INDICATOR TURNS "ON" IN THE INSTRUMENT CLUSTER WHILE DRIVING; BSM WILL NOT TURN ON AGAIN DURING DRIVE CYCLE; AFTER CYCLING, IGNITION SWITCH OFF AND ON AGAIN, BSM OPERATES NORMALLY; DTC U1A4B:97 OR U3000:97 IS STORED IN MEMORY.

MAZDA · 2015-12-09

SOME VEHICLES WITH BLIND SPOT MONITORING (BSM) MAY EXPERIENCE THE FOLLOWING CONDITIONS (SIMILAR TO WHEN THE BSM CONTROL MODULES DETECT DIRT ON THE REAR BUMPER SURFACE):• THE BSM TURNS “OFF” AND THE BSM OFF INDICATOR TURNS “ON” IN THE INSTRUMENT CLUSTER WHILE DRIVING • THE BSM WILL NOT TURN ON AGAIN DURING THE DRIVE CYCLE • AFTER CYCLING THE IGNITION SWITCH OFF AND ON AGAIN, THE BSM OPERATES NORMALLY • DTC U1A4B:97 OR U3000:97 IS STORED IN MEMORY - DTC U1A4B:97 - RADAR SENSOR SENSITIVITY TEMPORARILY DECREASES DEPENDING ON VARIOUS EXTERNAL AND ENVIRONMENTAL FACTORS (BLIND SPOT MONITORING (BSM) CONTROL MODULE (RH)) - DTC U3000:97 - RADAR SENSOR SENSITIVITY TEMPORARILY DECREASES DEPENDING ON VARIOUS EXTERNAL AND ENVIRONMENTAL FACTORS (BLIND SPOT MONITORING (BSM) CONTROL MODULE (LH)) TO…

JAGUAR · 2014-01-06

Touch Screen Reset With DTC U1A4B-48 Stored

JAGUAR · 2014-01-06

"SITUATION: THE TOUCH SCREEN MAY RESET OR BE BLANK ON START-UP AND DIAGNOSTIC TROUBLE CODE (DTC) U1A4B-48 MAY BE STORED IN THE TOUCH SCREEN. CAUSE: THIS MAY BE CAUSED BY A SOFTWARE ISSUE WITHIN THE TOUCH SCREEN."

JAGUAR · 2014-01-06

"SITUATION: THE TOUCH SCREEN MAY RESET OR BE BLANK ON START-UP AND DIAGNOSTIC TROUBLE CODE (DTC) U1A4B-48 MAY BE STORED IN THE TOUCH SCREEN. CAUSE: THIS MAY BE CAUSED BY A SOFTWARE ISSUE WITHIN THE TOUCH SCREEN."