EXHAUST SYSTEM INSPECTION
Start the engine and inspect each exhaust system component for exhaust gas leakage.
EXHAUST SYSTEM REMOVAL/INSTALLATION
Warning
1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.


HO2S Removal Note
Remove the HO2S using the SST
before removing the exhaust manifold.

Exhaust Manifold Installation Note
Tighten the exhaust manifold installation nuts in the order shown.

Fuel injector inspection
Emission systemMazda 6 Service Manual: Constant Monitoring
The following components of the air bag systems are monitored by a diagnostic
system:
Crash sensors, and diagnostic module (SAS unit),
Front air bag sensors
Air bag modules
Side crash sensors
Air bag/Front seat belt pretensioner system warning light
Front seat belt pretensioners
Re ...
Mazda 6 Service Manual: Filament inspection
1. Turn the ignition switch to ON position.
2. Turn the rear window defroster switch on.
Caution
Directly touching the rear window defroster filament with the lead
of the voltmeter will damage it. Wrap aluminum foil around the end of the
lead and test the filament by touching it with the ...