Mazda 6 Service Manual: No.26 exhaust sulphur smell

No.25 a/c is not cut off under wide open throttle conditions

No.27 constant voltage

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Mazda 6 Service Manual: Antilock Brake System (ABS)
The ABS control unit continuously monitors the speed of each wheel. If one wheel is about to lock up, the ABS responds by automatically releasing and reapplying that wheel's brake. The driver will feel a slight vibration in the brake pedal and may hear a chattering noise from the brake system ...

Mazda 6 Service Manual: Inspection of sst (deployment tool)
Use the SST (Deployment tool) to deploy a live (undeployed) air bag module or pre-tensioner seat belt before disposing of it. Before using the SST (Deployment tool), inspect its operation. Inspection Procedure Follow the steps below to verify that the SST (Deployment tool) is operatin ...