Diagnostic Procedure

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DTC U3003:04 BLIND SPOT MONITORING (BSM) CONTROL MODULE DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	PERFORM INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) Using the M-MDS, perform the instrument cluster configuration (using As-Built data). (See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .) Clear the DTC for the blind spot monitoring (BSM) control module using the M-MDS. (See CLEARING DTC (BLIND SPOT MONITORING (BSM) CONTROL MODULE) .) Switch the ignition ON (engine off or on) and wait for 30 s or more. Retrieve the blind spot monitoring (BSM) control module DTCs using the M-MDS. (See DTC INSPECTION (BLIND SPOT MONITORING (BSM) CONTROL MODULE) .) Is the same Pending DTC present?	Yes	Using the M-MDS, perform the instrument cluster configuration (using As-Built data) again, then go to the next step. (See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .)
1		No	Go to Step 3.
2	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear the DTC for the blind spot monitoring (BSM) control module using the M-MDS. (See CLEARING DTC (BLIND SPOT MONITORING (BSM) CONTROL MODULE) .) Switch the ignition ON (engine off or on) and wait for 30 s or more. Retrieve the blind spot monitoring (BSM) control module DTCs using the M-MDS. (See DTC INSPECTION (BLIND SPOT MONITORING (BSM) CONTROL MODULE) .) Is the same Pending DTC present?	Yes	Replace the blind spot monitoring (BSM) control module, then go to the next step. (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION .)
2		No	Go to the next step.
3	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE (BLIND SPOT MONITORING (BSM) CONTROL MODULE) .)
3		No	DTC troubleshooting completed.