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
Vehicle Security Module
VEHICLE SECURITY MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| B1695 | Autolamp On Circuit Failure | Vehicle Security Module | GO TO PINPOINT TEST F: THE AUTOLAMPS ARE ON CONTINUOUSLY . |
| B1792 | Autolamp Sensor Input Circuit Short To Battery And Open | Vehicle Security Module | Go To PINPOINT TEST F: THE AUTOLAMPS ARE ON CONTINUOUSLY . |
| B1793 | Autolamp Sensor Input Circuit Short To Ground | Vehicle Security Module | Go To PINPOINT TEST E: THE AUTOLAMPS ARE INOPERATIVE . |
| B2662 | Parklamp Relay Output Open Circuit | Vehicle Security Module | Go To PINPOINT TEST N: THE AUTOLAMPS OPERATE, BUT PARKING, REAR AND LICENSE LAMPS ARE INOPERATIVE . |
| B2664 | Headlamp Relay Output Open Circuit Or Short To Vbatt | Vehicle Security Module | Go To PINPOINT TEST G: THE HEADLAMPS ARE INOPERATIVE WITH AUTOLAMPS ON . |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.