Mazda 6 Service Manual: No.2 air bag system warning light is illuminated all the time

No.1 air bag system warning light does not illuminate

Diagnostic Procedure When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact point ...

No.3 passenger-side air bag cut-off indicator light does not illuminate

Diagnostic Procedure When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact point ...

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: Battery Maintenance
To get the best service from a battery: Keep it securely mounted. Keep the top clean and dry. Keep terminals and connections clean, tight, and coated with petroleum jelly or terminal grease. Rinse off spilled electrolyte immediately with a solution of water and baking soda. If th ...