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 THEFT-DETERRENT CONTROL MODULE REMOVAL/INSTALLATION.)
Caution
6. Remove in the order indicated in the table. Do not allow compressor oil to spill.






7. Install in the reverse order of removal.
8. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST.)
A/C Unit Installation Note
When installing a new A/C unit or evaporator, add a supplemental amount of ATMOS GU10 compressor oil into the refrigerant cycle.
Supplemental amount (approximate quantity) 25 ml {25 cc, 0.8 fl oz}
Air filter inspection
A/c unit disassembly/assemblyMazda 6 Service Manual: Transaxle Ranges
The shift position indicator light in the instrument cluster illuminates.
The selector lever must be in P or N to operate the starter.
P (Park)
P locks the transaxle and prevents the front wheels from rotating.
WARNING
Always set the selector lever to P and set the parking brake:
Only s ...
Mazda 6 Service Manual: Engine control system operation inspection
Main Relay Operation Inspection
Verify that the main relay clicks when the ignition switch is turned to ON
position and off.
If there is no operation sound, inspect the following.
- Main relay (See RELAY INSPECTION.)
- Harness and connector between ignition switch and main relay termi ...