Diagnostic Procedure

WARNING: This page is about a different car, the 2018 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.

DTC B1207:09 (REAR BODY CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY REAR BODY CONTROL MODULE (RBCM) DTCs AGAIN Clear the DTC for the rear body control module (RBCM) using the M-MDS. (See CLEARING DTC (Rear Body Control Module (RBCM)) .) Switch the ignition ON (engine off or on) and wait for 3 s or more. Retrieve the rear body control module (RBCM) DTCs using the M-MDS. (See DTC INSPECTION (Rear Body Control Module (RBCM)) .) Is the same DTC displayed?	Yes	Go to the next step.
1		No	Go to Step 4.
2	VERIFY SAS CONTROL MODULE DTCs Retrieve the SAS control module DTCs using the M-MDS. (See DTC INSPECTION [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)] .) (See DTC INSPECTION [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)] .) Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)] .) (See DTC TABLE [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)] .)
2		No	Go to the next step.
3	VERIFY IF MALFUNCTIONING LOCATION IS SAS CONTROL MODULE DEPENDING ON REPEATABILITY Clear the DTC for the rear body control module (RBCM) using the M-MDS. (See CLEARING DTC (Rear Body Control Module (RBCM)) .) Switch the ignition ON (engine off or on) and wait for 3 s or more. Retrieve the rear body control module (RBCM) DTCs using the M-MDS. (See DTC INSPECTION (Rear Body Control Module (RBCM)) .) Is the same DTC displayed?	Yes	Replace the SAS control module, then go to the next step. (See SAS CONTROL MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)
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 (Rear Body Control Module (RBCM)) .)
4		No	DTC troubleshooting completed.