Diagnostic Procedure

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Step	Inspection		Action
1	INSPECT REAR BUMPER SURFACE Visually inspect the rear bumper surface for the following: Dirt Adhered foreign material (reflective object) Is the rear bumper normal?	Yes	Go to the next step.
1		No	Remove dirt or foreign material (reflective object), then go to Step 4.
2	INSPECT AREA AROUND BLIND SPOT MONITORING (BSM) CONTROL MODULE Visually inspect the area around the blind spot monitoring (BSM) control module for the following: Dirt Adhered foreign material (reflective object) Is the area around the blind spot monitoring (BSM) control module normal?	Yes	Go to the next step.
2		No	Remove dirt or foreign material (reflective object), then go to Step 4.
3	VERIFY REAR BUMPER REPAIR HISTORY Verify if the rear bumper had been repaired or repainted before. Is the paint Mazda genuine?	Yes	Go to the next step.
3		No	Replace the rear bumper, then go to the next step. (See REAR BUMPER REMOVAL/INSTALLATION .)
4	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) SYSTEM] .) Retrieve the blind spot monitoring (BSM) control module DTCs using the M-MDS. (See DTC INSPECTION [BLIND SPOT MONITORING (BSM) SYSTEM] .) Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the blind spot monitoring (BSM) control module. (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION .) Go to the next step.
4		No	Go to the next step.
5	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) SYSTEM] .)
5		No	DTC troubleshooting completed.