The Blind Spot Monitoring (BSM) system can be set to inoperable.
When the Blind Spot Monitoring (BSM) is set to inoperable, the Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems are turned off and the Blind Spot Monitoring (BSM) OFF indicator light in the instrument cluster turns on.

NOTE
If the engine is stopped while the Blind Spot Monitoring (BSM) is turned off, the Blind Spot Monitoring (BSM) becomes operable the next time the engine is started.
Blind Spot Monitoring (BSM) Warning Indicator Lights/Display Indicator/ Blind
Spot Monitoring (BSM) Warning Beep
Traffic Sign Recognition System (TSR) (Some models)Mazda 6 Owners Manual: Input/turbine speed sensor inspection
Caution
Water or foreign objects entering the connector can cause a poor
connection or corrosion. Be sure not to drop water or foreign objects on the
connector when disconnecting it.
1. Disconnect the negative battery cable.
2. Remove the battery and battery tray.
3. Remove the air cl ...
Mazda 6 Owners Manual: Egr valve removal/installation
1. Disconnect the negative battery cable.
2. Disconnect the EGR valve connector.
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
Water Hose Removal Note
Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT.)
EGR Valve Removal Note
1. Re ...