Purpose/Function
A 9.8-inch, single diaphragm type power brake unit has been adopted, achieving compatibility between high braking performance and excellent brake feeling.
Construction
The power brake unit cannot be disassembled. Therefore, if there is any malfunction in the power brake unit, replace the power brake unit without disassembling.

Operation
The depression force of the brake pedal is increased using the vacuum from the vacuum pump, and the force is transmitted to the master cylinder.
Master Cylinder Removal/Installation
Power Brake Unit InspectionBrake
Brake System
Foot Brake
Your Mazda has power-assisted brakes that adjust automatically through normal
use.
Should power-assist fail, you can stop by applying greater force than normal
to the brake pedal. But the distance required to stop will be greater than usual.
WARNING
Do not coast wi ...
Lubrication System
Outline
Pressure loss is reduced by optimizing the oil passage.
With the adoption of the chain drive type oil pump, oil pump drive force
has been reduced.
With the adoption of the oil shower pipe, sliding resistance has been reduced.
With the adoption of the engine ...
Fuel Pump Control Module Inspection
1. Perform the KOEO self-test..
2. Verify that a fuel pump control module related DTC is detected..
If DTCs are detected, repair the malfunctioning part according to the applicable
DTC troubleshooting..
If a DTC is not detected, go to the next step.
3. Inspect the followin ...