Fig. 17: Identifying Brake Fluid Level Sensor Connector
Courtesy of MAZDA MOTORS CORP.
POWER BRAKE UNIT INSPECTION
WITHOUT USING SST
Operation Inspection
1. With the engine stopped, depress the pedal several 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. After driving the vehicle for
1-2 min
, stop the engine.
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. Maintain 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. Install the
SST
(49 N043 001) in the orientation shown in
Fig. 18
, (with DSC)
NOTE:
The following inspection methods are simple inspection methods to judge
the function of the power brake unit.
If there is any malfunction in the power brake unit, replace the power brake
unit as a single unit.
NOTE:
Install the SST (49 N043 001) to the master cylinder using a
commercially available flare nut wrench.
2007 Mazda MX-5 Miata Sport
2007 BRAKES Conventional Brake System - MX-5 Miata
Microsoft
Thursday, July 09, 2009 3:18:52 PM
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© 2005 Mitchell Repair Information Company, LLC.