1. Disconnect the negative battery cable.
2. Remove the rear wiper arm and blade. (See REAR WIPER ARM AND BLADE REMOVAL/INSTALLATION.)
3. Remove the liftgate lower trim. (See LIFTGATE LOWER TRIM REMOVAL/INSTALLATION)
4. Remove in the order indicated in the table.


5. Install in the reverse order of removal.
6. Adjust the rear wiper arm and blade. (See REAR WIPER ARM AND BLADE ADJUSTMENT.)
Rear washer motor inspection
Rear wiper motor inspectionMazda 6 Service Manual: Dual proportioning valve replacement (without abs)
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
Dual Proportioning Valve Installation Note
Install the dual proportioning valve so that the R mark faces the left side
of the vehicle.
...
Mazda 6 Service Manual: A/c unit removal/installation
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.)
3. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT.)
4. Remove the dashboard. (See DASHBOARD REMOVAL/INSTALLATION.)
5. Remove the theft-deterrent control module. (See ...