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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 823 (INTERIOR LIGHTING SYSTEM (F250-F550))DIAGNOSTIC TESTSINTERIOR LIGHTINGSYMPTOM CHART

2005 Ford Taurus SEL, 4D Sedan

Symptom Chart

2005 Ford Taurus SEL, 4D SedanSECTION Symptom Chart

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The interior lamps are inoperative	Fuse(s) Circuitry Instrument cluster	Go to Pinpoint Test A .
An individual interior lamp is inoperative	Circuitry Interior lamp assembly	Go to Pinpoint Test B .
The interior lamps do not turn on with one door open	Circuitry Door ajar switch Instrument cluster Vehicle security module	Go to Pinpoint Test C .
The interior lamps stay on continuously	Circuitry Instrument cluster Door ajar switch Headlamp switch Vehicle security module	Go to Pinpoint Test D .
The demand lighting is inoperative	Fuse Circuitry Instrument cluster	Go to Pinpoint Test E .
The individual demand lamp is inoperative	Circuitry Lamp assembly	Go to Pinpoint Test F .
The battery saver does not deactivate after timeout	Circuitry Instrument cluster	Go to Pinpoint Test G .
All battery saver components do not operate	Fuse Circuitry Instrument cluster	Go to Pinpoint Test H .
The running board lamps are inoperative/do not operate correctly (other interior lamps operate)	Circuitry Running board lamp	Go to Pinpoint Test I .
The interior lamps are inoperative from the headlamp switch	Circuitry Headlamp switch	Go to Pinpoint Test J .
The illuminated entry is inoperative when using the remote transmitter/keypad	Circuitry Vehicle security module	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.