Mazda CX-9 Grand Touring 2009 Manual page 2427

Fig. 71: BSM Indicator Light Connector Continuity Chart
Courtesy of MAZDA MOTORS CORP.
Fig. 72: BSM Indicator Light Connector - Circuit Diagram
Courtesy of MAZDA MOTORS CORP.
BLIND SPOT MONITORING (BSM) INDICATOR LIGHT INSPECTION
1. Apply battery voltage to BSM indicator light terminal A, and connect terminal B to ground.
2. Verify that the BSM indicator light illuminates.
If there is any malfunction, replace the outer mirror glass.
2008 Mazda CX-9 Grand Touring
2008 BODY & ACCESSORIES Glass/Windows/Mirrors - Mazda CX-9