The Smart Brake Support (SBS) system can be temporarily deactivated.
When the Smart Brake Support (SBS) system is turned off, the Smart Brake Support (SBS) OFF indicator light turns on.

When the engine is restarted, the system becomes operational.
NOTE
If the Smart Brake Support (SBS) system operation is turned off, the Smart City Brake Support (SCBS) system operation is turned off simultaneously.
Collision Warning
Forward Sensing Camera (FSC) (Some models)Mazda 6 Owners Manual: Clock spring inspection
1. Remove the clock spring.
2. Inspect for continuity between the clock spring terminals using an
ohmmeter.
If not as specified, replace the clock spring.
Note
When the vehicle-side connector of clock spring is disconnected,
the terminals 1A,1B, 1C and 1D are shorted to prevent ...
Mazda 6 Owners Manual: Dynamometer
When inspecting and servicing the power train on the dynamometer or
speed meter tester, pay attention to the following:
- Place a fan, preferably a vehicle-speed proportional type, in front
of the vehicle.
- Make sure the vehicle is in a facility with an exhaust gas
ventilation ...