Mazda 6 Service Manual: No.25 a/c is not cut off under wide open throttle conditions

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

No.26 exhaust sulphur smell

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: Radar Sensors (Rear) (Some models)
Your vehicle is equipped with radar sensors (rear). The following systems also use the radar sensors (rear). Blind Spot Monitoring system (BSM) Rear Cross Traffic Alert (RCTA) The radar sensors (rear) function by detecting the radio waves reflected off a vehicle approaching from the rea ...