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: How to use USB mode
This unit does not support a USB 3.0 device. In addition, other devices may not be supported depending on the model or OS version. USB devices formatted to FAT32 are supported (USB devices formatted to other formats such as NTFS are not supported). Playback 1. Select the icon on the home ...

Mazda 6 Service Manual: Pid/data monitor inspection
  1. Connect the WDS or equivalent to the DLC-2. 2. Measure the PID value. Note Perform part inspection for the output device after PCM inspection. The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, if a monitored value ...