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 MANUALSMERCURY1999TRACER LS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSAIR BAG, SRSSUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM
1999 Mercury Tracer LS, 4D Sedan, Standard
Supplemental Inflatable Restraint System
1999 Mercury Tracer LS, 4D Sedan, StandardSECTION Supplemental Inflatable Restraint System
- Description & Operation
- Service Precautions
- Adjustments
- Disabling & Activating Air Bag System
- Disposal Procedures
- Post-Collision Inspection
- Removal & Installation
- System Operation Check
- Diagnosis & Testing
- Diagnostic Tests
- Test A: Air Bag Warning Light On Continuously - ECS Module Disconnected Or Inoperative
- Test B: ECS Module Internal Fault (DTC B1342)
- Test C: Crash Data Memory Full (DTC B1231)
- Test D: Ground Resistance Too High Or ECS Module Not Mounted To Vehicle Properly (DTC B1921)
- Test E: Low Battery Voltage (DTC B1318)
- Test F: Incorrect Module Design Level (DTC C1414)
- Test G: Driver Air Bag Circuit Short To Ground (DTC B1887)
- Test H: Driver Air Bag Circuit Short To Battery Or Ignition (DTC B1916)
- Test I: Passenger Air Bag Circuit Short To Ground (DTC B1888)
- Test J: Passenger Air Bag Circuit Short To Battery Or Ignition (DTC B1925)
- Test K: Driver Air Bag Resistance High (DTC B1932)
- Test L: Passenger Air Bag Resistance High (DTC B1933)
- Test M: Driver Air Bag Low Resistance (DTC B1934)
- Test N: Passenger Air Bag Resistance Low (DTC B1935)
- Test O: Air Bag Tone Warning Indicator Circuit Short To Ground Or Open (DTC B1892)
- Test P: Air Bag Tone Warning Indicator Circuit Short To Battery Or Ignition (DTC B1891)
- Test Q: Non-Volatile Memory Configuration (DTC B2141)
- Test R: Air Bag Warning Light Inoperative (DTC B1869)
- Test S: Air Bag Warning Light Short To Battery Voltage (DTC B1870)
- Test T: Unexpected Feature Present (DTC B1871, B1877, B1878, B1879, B1881, B1882, B1883, B1884, B1885, B1886, B1889, B1890, B1901, B1941)
- Test U: No Communication With ECS Module
- Wire Repair
- Torque Specifications
- Wiring Diagrams
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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.