1. Disconnect the negative battery cable..
2. Remove the BSM OFF switch..
3. Verify that the continuity between the BSM OFF switch terminals is as indicated in the table.

If the continuity is not as indicated in the table, replace the BSM OFF switch.

4. Apply battery positive voltage to BSM OFF switch terminal E, and connect terminal A to ground.
5. Verify that the LED illuminates.
6. If there is any malfunction, replace the BSM OFF switch.
Blind Spot Monitoring (Bsm) Indicator Light Removal/Installation
Blind Spot Monitoring (Bsm) Off Switch Removal/InstallationTransmission/Transaxle SST
1: Mazda SST number
2: Global SST number
Example
1:49 UN30 3009
2:303-009
Crankshaft damper remover
Clutch [G35M-R]
1:49 E011 1A0
2: –
Ring gear brake set
1:49 SE01 310A
2: –
Clutch disc center ...
DSC HU/CM Inspection
1. Disconnect the DSC HU/CM connector..
2. Connect the negative battery cable..
3. Attach the tester lead to the DSC HU/CM wiring harness-side connector and
inspect voltage, continuity, or resistance according to the standard (reference)
on the table.
Standard (Reference)
...
Vanity Mirror Illumination Inspection
1. Disconnect the negative battery cable..
2. Remove the sunvisor..
3. Verify that the continuity between the vanity mirror illumination terminals
is as indicated in the table.
If not as indicated in the table, inspect the bulb. If there is no malfunction,
replace the sunvisor.
...