Service Precautions

WARNING: This page is about a different car, the 1991 Mazda RX-7, 1991 Mazda MX-5 Miata, 1990 Mazda RX-7, and 1990 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The following precautions should be observed when working with air bag systems.

Disable air bag system before servicing any air bag system or steering column component. See DISABLING & ACTIVATING AIR BAG SYSTEM
Wait about 10 MINUTES after disabling air bag system before servicing. Air bag system voltage is maintained for about 10 MINUTES after system is disabled. Failure to wait 10 MINUTES before servicing system may cause accidental air bag deployment and possible personal injury.
On Miata, obtain radio code number from customer and deactivate radio anti-theft function before disconnecting battery.
Because of the critical system operating requirements, DO NOT service any air bag system component. Corrections are made by replacement only.
DO NOT use an ohmmeter to check resistance of air bag module, as it may cause air bag deployment.
When carrying a live (undeployed) module, ensure trim cover is pointed away from your body. This minimizes chance of injure in the event ofaccidental air bag deployment.
When placing a live air bag module on any surface, always face trim cover upward to reduce motion of module if it is accidentally deployed.
If an open circuit is present, replace entire wiring harness. DO NOT attempt wire repair.
Impact sensors must always be installed with arrow marks facing front of vehicle. Also, check sensors for cracks, defects or rust before installation. Replace impact sensor(s) if required.
Air bag system clockspring MUST be aligned in the neutral position, since its rotation ability is limited. DO NOT turn steering wheel or column after removal of steering gear.
A double-lock mechanism is used on clockspring connectors. DO NOT use excessive force when disconnecting connectors, as damage to connector may occur.