Mazda 6 Service Manual: Quick diagnosis chart

Symptom troubleshooting item table

Use the chart below to verify the symptoms of the trouble in order to diagnose the appropriate area. ...

No.1 vehicle does not move in d, s, l ranges, or in r position

Diagnostic procedure ...

Other materials:

Mazda 6 Service Manual: Intermittent concern troubleshooting
  Vibration Method 1. If malfunction occurs or becomes worse while driving on a rough road or when engine is vibrating, perform the steps below. Note There are several reasons vehicle or engine vibration could cause an electrical malfunction. Some of the things to check for are: ...

Mazda 6 Service Manual: Service cautions
HANDLING INSUFFICIENT REFRIGERANT LEVEL If an insufficient refrigerant level is detected at troubleshooting, do not charge (add) the refrigerant. Because an accurate amount of refrigerant cannot be determined from the pressure indicated on the manifold gauge, never charge the refrigeran ...