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 MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1550 (INFORMATION SYSTEM AND ENTERTAINMENT SYSTEM)DIAGNOSIS AND TESTINGINFORMATION AND ENTERTAINMENT SYSTEMSYMPTOM CHART - NAVIGATION

2005 Ford Taurus SEL, 4D Sedan

Symptom Chart - Navigation

2005 Ford Taurus SEL, 4D SedanSECTION Symptom Chart - Navigation

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NAVIGATION

Condition	Possible Sources	Action
No Global Positioning System (GPS) antenna signal	Satellite radio antenna cable Audio Control Module (ACM)	GO to PINPOINT TEST W .
The position cursor is inaccurate	GPS antenna concern Network message concern ACM	GO to PINPOINT TEST X .
The voice guidance is inoperative/does not operate correctly	Incorrect system setting Wiring, terminals or connectors (except premium sound) Audio Digital Signal Processing (DSP) module (except premium sound) ACM	GO to PINPOINT TEST Y .
Voice recognition is inoperative/does not operate correctly	Wiring, terminals or connectors Microphone Steering wheel controls ACM Accessory Protocol Interface Module (APIM) (if equipped)	GO to PINPOINT TEST V .

RENDER: 1.0x

NO RELATED

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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.