Mazda 6 Service Manual: No.23 a/c does not work sufficiently

No.22 vibration concerns (engine)

No.24 a/c is always on or a/c compressor runs continuously

Other materials:

Mazda 6 Service Manual: Climate control unit disassembly/assembly
1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. Wire Disassembly Note Disassemble the wires in the shown in the figure. Wire Assembly Note Assemble the wires to the position as shown in the figure. ...

Mazda 6 Service Manual: Selector lever disassembly/assembly
1. Disassemble in the order shown in the figure. 2. Assemble in the reverse order of disassembly. Connector Disassembly Note 1. Insert a thin piece of metal from the terminal side of the connector, and press down the terminal locking tab. 2. Pull the terminal out of the connector. ...