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 MANUALSSAAB1994900 BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSAIR BAG, SRSAIR BAG RESTRAINT SYSTEMDIAGNOSISTEST 2FAULT CODE B1227 (WITHOUT CENTRAL WARNING LIGHT)
1994 Saab 900 Base, Standard
Fault Code B1227 (Without Central Warning Light)
1994 Saab 900 Base, StandardSECTION Fault Code B1227 (Without Central Warning Light)
- Record fault code, then erase code. Turn ignition off, then on again. Wait at least 40 seconds with ignition on. If code reoccurs, go to next step. If code does not reoccur, leave ignition on and wiggle connectors and wires to check for loose contacts. Turn ignition off, then on again. Wait 40 seconds with ignition on. If code does not reappear, fault was intermittent. If code reappears, go to next step.
- Install Reference Resistor (84 71 153) to driver-side and passenger-side air bag module. See REFERENCE RESISTOR INSTALLATION under SELF-DIAGNOSTIC SYSTEM . Disconnect control module electrical connector. Connect Breakout Box (86 11 006) to harness side of control module connector.
- Disconnect electrical connector behind fuel gauge in instrument cluster. Turn ignition on. Measure voltage between breakout box pin No. 5 and ground. If battery voltage is present, wiring is defective between instrument cluster connector and control module connector.
- If battery voltage is not present, replace bulb. Reconnect all electrical connectors. Turn ignition on and erase fault code. Turn ignition off, then turn it on again. Leave ignition on at least 40 seconds. If code does not reoccur, system is okay. If code reoccurs, go to SRS LIGHT COMES ON AFTER IGNITION ON .
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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.