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 MANUALSLINCOLN2008NAVIGATOR RWDREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXLIGHTING DTCSEXTERIOR LIGHTINGHEADLAMP
2008 Lincoln Navigator RWD
Exterior Lighting: Headlamp
2008 Lincoln Navigator RWDSECTION Headlamp
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1472 | Lamp Headlamp Input Circuit Short to Ground | Go to Pinpoint Test D . |
| B1510 | Flash To Pass Switch Circuit Short to Ground | Go to Pinpoint Test D . |
| B1696 | Autolamp On Circuit Short To Ground | Go to Pinpoint Test D . |
| B2A22 | Headlamp Off Circuit Open | ADDRESS any other DTCs first. Go to Pinpoint Test D . |
| B2A23 | High Beam Input Circuit Short to Ground | Go to Pinpoint Test D . |
| B2A2E | Right Front Lamp Low Beam Circuit Open | If the low beam is inoperative, go to Pinpoint Test B
. If the low beam is always on, go to Pinpoint Test D . |
| B2A2F | Right Front Lamp Low Beam Circuit Short to Ground | Go to Pinpoint Test B . |
| B2A30 | Left Front Lamp Low Beam Circuit Open | If the low beam is inoperative, go to Pinpoint Test B
. If the low beam is always on, go to Pinpoint Test D . |
| B2A31 | Left Front Lamp Low Beam Circuit Short to Ground | Go to Pinpoint Test B . |
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1472 | Lamp Headlamp Input Circuit Short to Ground | Go to Pinpoint Test G . |
| B1696 | Autolamp On Circuit Short To Ground | Go to Pinpoint Test G . |
| B1791 | Autolamp Sensor Input Circuit Open | Go to Pinpoint Test G . |
| B1793 | Autolamp Sensor Input Circuit Short to Ground | Go to Pinpoint Test G . |
| B2008 | Wipers On Signal Circuit Short to Ground | Go to Pinpoint Test G . |
| B2A22 | Headlamp Off Circuit Open | Go to Pinpoint Test G . |
RENDER: 1.0x
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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.