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 MANUALSMERCURY1991TRACER BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 146 (AIR BAG RESTRAINT SYSTEM)TESTING - SYSTEM OPERATION CHECK
1991 Mercury Tracer Base, 4D Sedan, Automatic
Testing - System Operation Check
1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Testing - System Operation Check
WARNING: This page is about a different car, the 1994 Ford Probe. However, it is still accessible from the selected car via links, so may be relevant.
- When checking SRS operation, and at completion of each diagnostic test, check for faults in SRS. To check system, turn ignition switch to RUN position. If AIR BAG warning light glows 4-8 seconds and then goes out, SRS is functioning properly and no fault codes exist.
- If a fault code is detected in SRS during initial system check, AIR BAG warning light will fail to light, stay on continuously or flash a code sequence. If AIR BAG warning light flashes, indicating a fault in system, count number of flashes after fault code has cycled twice. Number of flashes represents a code number used to diagnose SRS. See DIAGNOSIS .
- If a system fault code exists and AIR BAG warning light fails to light, an audible tone will be heard indicating AIR BAG warning light is out and service is required. See TONE GENERATOR under DESCRIPTION & OPERATION.
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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.