Warning
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Disconnect the cord assembly connector.

4. Remove the oil pressure switch.
5. Install the oil pressure switch.
Tightening torque 17.1-22.1N·m {1.75-2.25kgf·m, 13-16ft·lbf}
6. Connect the oil pressure switch connector.
7. Install the under cover.
8. Connect the negative battery cable.
Oil pressure switch inspection
Input/turbine speed sensor inspectionMazda 6 Service Manual: Panel light control switch inspection
1. Connect the connector to the panel light control switch.
2. Connect the negative battery cable.
3. Measure the voltage at the panel light control switch using voltmeter.
When inspecting terminal B for continuity, disconnect the panel light
control switch connector.
4. If the value are ...
Mazda 6 Service Manual: Service cautions
HANDLING INSUFFICIENT REFRIGERANT LEVEL
If an insufficient refrigerant level is detected at troubleshooting,
do not charge (add) the refrigerant. Because an accurate amount of
refrigerant cannot be determined from the pressure indicated on the manifold
gauge, never charge the refrigeran ...