1. Disconnect the negative battery cable.
2. Remove the center panel module. (See CENTER PANEL MODULE REMOVAL/INSTALLATION.)
3. Remove the LCD unit. (with car-navigation system) (See LCD UNIT REMOVAL/INSTALLATION.)
4. Remove the center box. (without car-navigation system)
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.


Information Display Removal Note
Squeeze the tabs of information display and pull it forward to it.
Horn removal/installationMazda 6 Service Manual: Rocking the Vehicle
WARNING
Do not spin the wheels at more than 56 km/h (35 mph), and do not allow
anyone to stand behind a wheel when pushing the vehicle: When the vehicle
is stuck, spinning the wheels at high speed is dangerous. The spinning tire could
overheat and explode. This could cause serious injuries.
...
Mazda 6 Service Manual: Three-way catalytic converter (twc) inspection
Note
Make sure that no HO2S DTCs have been detected. If detected, this
inspection is not applicable for TWC inspection.
1. Connect the WDS or equivalent and monitor PIDs as following.
Monitor the right TWC using O2S11 PID for upstream HO2S and O2S12 PID
for downstream HO2S.
2. Be ...