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 MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 416 (INFORMATION SYSTEM AND ENTERTAINMENT SYSTEMS)DIAGNOSIS AND TESTINGINFORMATION AND ENTERTAINMENT SYSTEM - NAVIGATIONINSPECTION AND VERIFICATION
2007 Ford Fusion SEL, 2.3 Z, Standard
Inspection and Verification
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION Inspection and Verification
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Audio unit
- Antenna
- Antenna cable
- Global positioning system (GPS) antenna
- Navigation system compact disc (CD)
- Speaker mounting/speaker cones
- Radio ignition interference capacitor, radio frequency interference suppression bond, or radio receiver hood bonding strap
- Smart junction box (SJB) fuse(s):
- 7 (10A)
- 12 (5 A)
- 16 (15A)
- Battery junction box (BJB) fuse(s):
- 15 (20A)
- 22 (40A)
- 23 (40A)
- Ignition switch
- Circuitry
- Audio unit
- CD changer
- Subwoofer
- Speaker(s)
- If the vehicle is not equipped with a navigation radio, refer to INFORMATION AND ENTERTAINMENT SYSTEM in this article to continue diagnosis.
- If the concern is visually evident, GO to SYMPTOM CHART .
- If the concern is not visually evident, proceed to the SPEAKER WALK-AROUND TEST and the audio unit self-diagnostic mode.
AUDIO UNIT DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| B1342 | ECU Is Defective | Audio unit | CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test. If DTC B1342 is retrieved again, REMOVE the audio unit. SEND it to an authorized audio system repair facility. REFER to AUDIO UNIT in this article. TEST the system for normal operation after the repair. |
| B2103 | Antenna Not Connected | Audio unit | VERIFY that the radio antenna is connected. CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test. If DTC B2103 is retrieved again, REMOVE the audio unit. SEND it to an authorized audio system repair facility. REFER to AUDIO UNIT in this article. TEST the system for normal operation after the repair. |
| B2139 | Data Mismatch | Audio unit | GO to PINPOINT TEST O . |
| B2204 | GPS Antenna Open or Short | Audio unit | GO to PINPOINT TEST R . |
| B2208 | Navigation To Head Unit Communication Error | Audio unit | GO to SYMPTOM CHART . |
| B2402 | Audio CD/DJ Thermal Shutdown Fault | CD changer | CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test. If DTC B2402 is retrieved again, REMOVE the CD changer. SEND it to an authorized audio system repair facility. TEST the system for normal operation after the repair. |
| B2403 | Audio CD/DJ Internal Fault | CD changer | CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test. If DTC B2403 is retrieved again, REMOVE the CD changer. SEND it to an authorized audio system repair facility. TEST the system for normal operation after the repair. |
| B2405 | Audio Single-Disc CD Player Thermal Shutdown Fault | Audio unit | CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test. If DTC B2405 is retrieved again, REMOVE the audio unit. SEND it to an authorized audio system repair facility. REFER to AUDIO UNIT in this article. TEST the system for normal operation after the repair. |
| B2406 | Audio Single-Disc CD Player Internal Fault | Audio unit | CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test. If DTC B2406 is retrieved again, REMOVE the audio unit. SEND it to an authorized audio system repair facility. REFER to AUDIO UNIT in this article. TEST the system for normal operation after the repair. |
| B2858 | H/U is Defective | Audio unit | GO to SYMPTOM CHART . |
| B2913 | Audio Subwoofer Not Connected | Audio unit | GO to PINPOINT TEST L . |
| U2003 | Audio Compact Disc/Disc Jockey is Not Responding | Audio unit | GO to PINPOINT TEST H . |
| U2014 | Audio Subwoofer Unit is Not Responding | Audio unit | GO to PINPOINT TEST D . |
| A477 | Audio Unit Configuration | Audio unit | CLEAR and DOCUMENT the DTCs. CARRY OUT the self-test. If DTC A477 is retrieved again, REMOVE the audio unit. SEND it to an authorized audio system repair facility. REFER to AUDIO UNIT in this article. TEST the system for normal operation after the repair. |
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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.