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: DSC OFF Switch
Press the DSC OFF switch to turn off the TCS/DSC. The DSC OFF indicator light
in the instrument cluster will illuminate.
Press the switch again to turn the TCS/ DSC back on. The DSC OFF indicator light
will turn off.
NOTE
When DSC is on and you attempt to free the vehicle when it is stuc ...
Mazda 6 Service Manual: Combination switch removal/installation
1. Disconnect the negative battery cable.
2. Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE
REMOVAL/INSTALLATION.)
3. Remove the steering wheel. (See STEERING WHEEL AND COLUMN
REMOVAL/INSTALLATION.)
4. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION)
5 ...