Mazda 6 Service Manual: Dtc p0420

Dtc p0403

Dtc p0443

Other materials:

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 ...

Mazda 6 Service Manual: Refrigerant pressure switch removal/installation
1. Remove the battery. 2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.) 3. Loosen the refrigerant pressure switch using two spanners. 4. Remove in the order indicated in the table. 5. Install in the reverse order of removal. Refrigerant Pressure Switch Installat ...