Mazda CX-9 Grand Touring 2009 Manual page 527

1. With the engine stopped, pump the pedal a few times.
2. With the pedal depressed, start the engine.
3. If the pedal moves down slightly immediately after starting the engine, the unit is normal.
Vacuum function inspection
1. Start the engine.
2. Stop the engine after driving the vehicle for 1-2 min.
3. Depress the pedal with normal force.
4. If the first pedal stroke is long and becomes shorter with subsequent strokes, the unit is normal.
If a problem is found, inspect for, damage to or improper installation of the check valve and
vacuum hose. After repairing, inspect again.
Vacuum loss function inspection
1. Start the engine.
2. Depress the pedal with normal force.
3. With the pedal depressed, stop the engine.
4. Hold the pedal depressed for approx. 30 s .
5. If the pedal height does not change during this time, the unit is normal.
USING SST
Pre-inspection preparation
1. Disconnect the brake pipe flare nut area using the commercially available flare nut wrench as shown in
the figure.
2. Remove the clamp and disconnect the brake hose.
Fig. 16: Identifying Clamp, Brake Hose & Brake Pipe
Courtesy of MAZDA MOTORS CORP.
3. Install the SST to the brake pipe as shown in the figure.
2008 Mazda CX-9 Grand Touring
2008 BRAKES Conventional Brake System - Mazda CX-9