Airflow Inspection
1. Disconnect the section (A) of the ventilation hose shown in the figure.
2. Start the engine and verify that vacuum is applied to the end of the disconnected ventilation hose while the engine is idling.
NOTE:
Because it is difficult to directly inspect the PCV valve, determine the integrity of the PCV valve by performing a simple inspection of the ventilation hose airflow condition.If the PCV valve is operating normally, vacuum occurs in the ventilation hose, however, if there is a malfunction in the PCV valve, positive pressure occurs in the ventilation hose because the blow-by gas is circulated to the air hose from the ventilation hose.
Verify the ventilation hose vacuum using the following methods:
When the tip of your finger touches the end of the ventilation hose, it is suctioned by the hose.
When a thin scrap of paper contacts the end of the ventilation hose, it is suctioned by the hose.
3. If it can be verified that vacuum occurs in the ventilation hose, the positive crankcase ventilation (PCV valve) system is determined to be normal.
If positive pressure occurs in the ventilation hose, perform the procedure from Step 4 to examine the PCV valve.
4. Remove the battery cover..
5. Disconnect the negative battery cable..
6. Remove the intake manifold and the fuel distributor component as a single unit..
7. Remove the PCV valve and the oil separator as a single unit..
8. Verify that there is no airflow when pressure is applied to port A.
If there is airflow, replace the PCV valve..
9. Verify that there is airflow when vacuum is applied to port A.
If there is no airflow, replace the PCV valve..
Locking Lug Nuts
If your vehicle has Mazda optional
antitheft wheel lug nuts, one on each
wheel will lock the tires and you must
use a special key to unlock them. This
key will attach to the lug wrench.
Register them with the lock manufacturer
by filling out the card provided in the
glove compartment and ma ...
Filament Inspection
1. Turn the ignition switch to the ON position.
2. Turn the rear window defroster switch on.
CAUTION:
Directly touching the rear window defroster filament with the lead of the
tester could damage it. Wrap aluminum foil around the end of the lead and inspect
the filament by touc ...
Active Command Modes Inspection [Blind Spot Monitoring (Bsm)]
1. Connect the M-MDS (IDS) to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the IDS.
a. Select “DataLogger”.
b. Select “Modules”.
c. Select “BSML” or “BSMR”.
3. Select the simulation items from the PID table.
4. Perform ...