1. Connect the SSTs to the brake pipes as shown in the figure.

2. Bleed the air from the brake system.
3. Measure the fluid pressure of the master cylinder and the rear brake.

Fluid pressure

Power brake unit inspection
Dual proportioning valve replacement (without abs)Mazda 6 Service Manual: STEP 1: Contact Your Mazda Dealer
Discuss the matter with an Authorized Mazda Dealer. This is the quickest and
best way to address the issue.
If your concern has not been resolved by the CUSTOMER RELATIONS, SALES,
SERVICE, or PARTS MANAGER, then please contact the GENERAL MANAGER of the dealership
or the OWNER.
If it b ...
Mazda 6 Service Manual: Electrical parts
Battery cable
Before disconnecting connectors or removing electrical parts, disconnect
the negative battery cable.
Wiring Harness
To remove the wiring harness from the clip in the
engine room, pry up the hook of the clip using a
flathead screwdriver.
...