Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO1991740 BASE, 4D WAGON, AUTOMATIC, AW70LREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONRESTRAINTSAIR BAG DEACTIVATION PROCEDURESLEXUSDISABLING & ACTIVATING AIR BAG SYSTEM
1991 Volvo 740 Base, 4D Wagon, Automatic, AW70L
Disabling & Activating Air Bag System
1991 Volvo 740 Base, 4D Wagon, Automatic, AW70LSECTION Disabling & Activating Air Bag System
WARNING:
Wait at least 20 seconds after disabling SRS. The system retains enough voltage to deploy air bag for a short time after disconnecting power. Servicing SRS before 20-second period may cause accidental air bag deployment and possible personal injury.
To disable SRS, turn ignition switch to LOCK position, and disconnect negative battery cable. Wait 20 seconds before working on system. To activate SRS, reconnect negative battery cable. Perform SYSTEM OPERATION CHECK .
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.