Diagnostic Procedure

WARNING: This page is about a different car, the 2025 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

DTC U3000:56 (FRONT BODY CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN Clear the DTC for the front body control module (FBCM) using the M-MDS. (See CLEARING DTC .) Retrieve the front body control module (FBCM) DTCs using the M-MDS. (See DTC INSPECTION .) Is the same DTC displayed?	Yes	Go to the next step.
1		No	Go to Step 4.
2	PERFORM FRONT BODY CONTROL MODULE (FBCM) CONFIGURATION (USING AS-BUILT DATA) Using the M-MDS, perform the front body control module (FBCM) configuration (using As-Built data). (See FRONT BODY CONTROL MODULE (FBCM) CONFIGURATION (USING AS-BUILT DATA) .) Clear the DTC for the front body control module (FBCM) using the M-MDS. (See CLEARING DTC .) Retrieve the front body control module (FBCM) DTCs using the M-MDS. (See DTC INSPECTION .) Is the same DTC displayed?	Yes	Using the M-MDS, perform the front body control module (FBCM) configuration (using As-Built data) again, then go to the next step. (See FRONT BODY CONTROL MODULE (FBCM) CONFIGURATION (USING AS-BUILT DATA) .)
2		No	Go to Step 4.
3	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear the DTC for the front body control module (FBCM) using the M-MDS. (See CLEARING DTC .) Retrieve the front body control module (FBCM) DTCs using the M-MDS. (See DTC INSPECTION .) Is the same DTC displayed?	Yes	Replace the front body control module (FBCM), then go to the next step. (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION .)
3		No	Go to the next step.
4	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 .)
4		No	DTC troubleshooting completed.