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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSSAAB1990900 BASE, 4D SEDAN, 2.0 L, AUTOMATICREPAIR AND DIAGNOSISRESTRAINTSAIR BAG, SRSAIR BAG RESTRAINT SYSTEMTESTING - SYSTEM OPERATION CHECK
1990 Saab 900 Base, 4D Sedan, 2.0 L, Automatic
Testing - System Operation Check
1990 Saab 900 Base, 4D Sedan, 2.0 L, AutomaticSECTION Testing - System Operation Check
- Turn ignition on. On 9000 Series with ECU part No. 9124074, engine must be allowed to idle approximately 15 minutes. On all other models, engine does not have to be running and there is no delay period.
- On all models, if SRS warning light comes on for about 6 seconds then goes out, system is operating properly. If light remains on, a fault exists in the system.
- If a fault occurs in the system while ignition switch is on, SRS warning light will flash for about 10 minutes and then stay lit. If air bag is deployed, SRS warning light will flash for about 5 seconds and then stay lit.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.