Mazda 6 Service Manual: No.27 constant voltage

No.26 exhaust sulphur smell

No.28 spark plug condition

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Mazda 6 Service Manual: Instrument cluster inspection
Speedometer Using the input/output check mode Inspect the speedometer by setting it in the input/output check mode DTC 12. Using a speedometer tester 1. Adjust the tire air pressure to the specification. 2. Using a speedometer tester, verify that the speedometer indication is within the allow ...

Mazda 6 Service Manual: Fuel Economy Monitor
The Control Status and Fuel Consumption are switched and displayed by operating each icon in the display. In addition, after completing a trip, the total energy efficiency to date is displayed in the ending display when the ending display is turned on. 1. Select the icon on the home screen ...