1. Disconnect the negative battery cable.
2. Remove the intake maniforld.(see INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
3. Remove the PCV valve.
4. Blow through the valve and verify that air flows as specified.

Specification

Egr valve inspection
Three-way catalytic converter (twc) inspectionMazda 6 Service Manual: Side protector removal
1. Pry the side protector end 20-30 mm {0.8-1.1 in} using a flathead
screwdriver or a razor.
Warning
Using a razor with bare hands can cause injury. Always wear gloves
when using a razor.
Note
The side protector is installed with double-sided adhesive tape.
If the side protector ...
Mazda 6 Service Manual: Power outside mirror inspection
1. Disconnect the power outside mirror connector.
2. Apply battery positive voltage to the power outside mirror terminals and
inspect the operation of the power outside mirror.
If not as specified, replace the power outside mirror.
3. Inspect for continuity between the power outside mi ...