1. Remove the front map light. (See FRONT MAP LIGHT REMOVAL/INSTALLATION.)
2. Inspect for continuity between the front map light terminals using an ohmmeter.
Mazda 6 Service Manual: Pcv valve inspection
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.
If not as specified, replace the PCV valve.
Specification
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Mazda 6 Service Manual: TCS/DSC Indicator Light
This indicator light stays on for a few seconds when the ignition is switched
ON. If the TCS or DSC is operating, the indicator light flashes.
If the light stays on, the TCS, DSC or the brake assist system may have a malfunction
and they may not operate correctly. Take your vehicle to an Auth ...