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.
2004 Lincoln Aviator AWDFACTORY OEM SERVICE PROCEDURE
Steering System
- Specifications
- Description And Operation
- Diagnosis And Testing
- Steering System
- Notes
- Special Tool(s)
- Material
- Inspection and Verification
- Steering System Symptom Definitions
- Symptom Chart
- Connector Circuit Reference
- Pinpoint Test A: No Communication With The Variable Assist Power Steering (VAPS) Module/Unable To Enter Self-Test
- Pinpoint Test B: DTCs B1317/B1318 - Battery Voltage High/Low
- Pinpoint Test C: DTC C1445 - Vehicle Speed Signal Circuit Failure
- Pinpoint Test D: DTC C1897 - Steering VAPS Circuit Loop Failure
- Pinpoint Test E: Steering System Noise
- Pinpoint Test F: Steering is Very Difficult/Very Easy
- Pinpoint Test G: Excessive Steering Wheel Play
- Pinpoint Test H: Steering System Drift/Pull/Wander
- Component Tests
- Steering Column Switches
- Steering System
- General Procedures
- Removal And Installation
- Disassembly And Assembly
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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