Hummer H2. Manual - part 17

Fig. 25: Disconnecting Passenger-Side Air Bag Connector (SC300 & SC400) 
Courtesy of COURTESY OF TOYOTA MOTOR SALES, U.S.A., INC.

 

1997 Lexus SC 300 

GENERAL INFORMATION Air Bag Deactivation Procedures

  

Fig. 26: Disconnecting Passenger-Side Air Bag Connector (LX450) 
Courtesy of COURTESY OF TOYOTA MOTOR SALES, U.S.A., INC. 

MAZDA 

SYSTEM OPERATION CHECK 

Turn ignition on. AIR BAG indicator light in instrument cluster should come on for 6 seconds and then turn off. 
If AIR BAG indicator light does not come on, stays on or flashes, a SRS fault has been detected.  

SERVICE PRECAUTIONS 

Observe these precautions when working with air bag system:  

z

Disable air bag system before servicing any air bag system or steering column component. See 
DISABLING & ACTIVATING AIR BAG SYSTEM .  

z

Wait at least ONE MINUTE after disabling air bag system before servicing vehicle. Air bag system 
activation voltage is maintained for about ONE MINUTE after system is disabled. Failure to wait at least 
ONE MINUTE before servicing system may cause accidental air bag deployment and possible personal 
injury.  

z

Because of critical system operating requirements, DO NOT service any air bag system component or 
wiring harness. Corrections are made by component replacement only.  

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DO NOT use an ohmmeter to check resistance of air bag module, as it may cause air bag deployment. 

 

1997 Lexus SC 300 

GENERAL INFORMATION Air Bag Deactivation Procedures

  

z

When carrying a live (undeployed) module, ensure trim cover is pointed away from body. This minimizes 
chance of injury in event of accidental air bag deployment.  

z

When placing a live air bag module on a bench or other flat surface, always face trim cover up to reduce 
motion of module if it is accidentally deployed.  

z

Crash sensors must always be installed with arrow on sensor facing front of vehicle. Also, check sensors 
for cracks, defects and rust before installation. Replace crash sensor(s) as necessary.  

z

Air bag system clockspring MUST be aligned in neutral position, since its rotation ability is limited. DO 
NOT turn steering wheel or column after removal of steering gear.  

z

DO NOT install components previously installed on another vehicle. Only use NEW components 
supplied by manufacturer.  

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DO NOT store air bag modules where they will be exposed to temperatures greater than 199°F (93°C), 
high humidity or electrical noise.  

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Information labels are attached to air bag components. Follow all notices on labels.  

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After servicing SRS, check air bag indicator light to ensure system is functioning properly. See SYSTEM 
OPERATION CHECK .  

z

Always wear safety glasses when servicing or handling air bags or seat belt pretensioners.  

z

A double-lock mechanism is used on clockspring connectors. DO NOT use excessive force when 
disconnecting connectors, as damage to connector may occur.  

z

If SRS is not fully functional for any reason, vehicle should not be driven until system is repaired and 
again becomes operational. DO NOT remove bulbs, modules, sensors or other components or in any way 
disable system from operating normally. If SRS is not functional, park vehicle until it is repaired and 
functions properly. See SYSTEM OPERATION CHECK .  

DISABLING & ACTIVATING AIR BAG SYSTEM 

Disabling System (Except Protege) 

1. Obtain radio anti-theft protection code from vehicle owner prior to servicing vehicle or deactivate radio 

anti-theft function before disconnecting vehicle battery.  

2. Turn ignition switch to LOCK position. Disconnect and shield negative battery cable. Wait at least ONE 

MINUTE for back-up power supply to be depleted.  

3. Remove cover below left side of instrument panel. Disconnect clockspring connector for driver-side air 

bag. See Fig. 27 or Fig. 28 . Remove glove box cover (MPV) and glove box. Disconnect passenger-side 
air bag module connector. See Fig. 29 .  

Activating System (Except Protege) 

Ensure negative battery cable is disconnected. Connect passenger-side air bag module connector. Install glove 
box cover and glove box. Connect driver air bag clockspring connector. Install lower cover. Connect negative 
battery cable. See SYSTEM OPERATION CHECK .  

Disabling System (Protege) 

1. Obtain radio anti-theft protection code from vehicle owner prior to servicing vehicle or deactivate radio 

 

1997 Lexus SC 300 

GENERAL INFORMATION Air Bag Deactivation Procedures

  

anti-theft function before disconnecting vehicle battery.  

2. Turn ignition switch to LOCK position. Disconnect and shield negative battery cable. Wait at least ONE 

MINUTE for back-up power supply to be depleted.  

3. Remove cover below left side of instrument panel. Disconnect clockspring connector for driver-side air 

bag. Remove passenger-side front scuff plate and right kick panel trim. Disconnect passenger air bag 
module connector.  

Activating System (Protege) 

Ensure negative battery cable is disconnected. Connect passenger air bag module connector. Install right kick 
panel trim and scuff plate. Connect driver air bag clockspring connector. Install lower cover. Connect negative 
battery cable. See SYSTEM OPERATION CHECK .  

Fig. 27: Locating Driver Air Bag Clockspring Connectors (Miata Shown; Other Models Are Similar) 
Courtesy of MAZDA MOTORS CORP. 

 

1997 Lexus SC 300 

GENERAL INFORMATION Air Bag Deactivation Procedures