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.
2007 Ford Focus STFACTORY OEM SERVICE PROCEDURE
Entertainment System DTCS
AUDIO UNIT DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1317 | Battery Voltage High | CHECK the charging system. REFER to CHARGING SYSTEM - GENERAL INFORMATION article. If no concerns are found, go to Pinpoint Test A . |
| B1318 | Battery Voltage Low | CHECK the charging system. REFER to CHARGING SYSTEM - GENERAL INFORMATION article. If no concerns are found, go to Pinpoint Test A . |
| B1342 | ECU is Faulted | CLEAR the DTC. CARRY OUT the self-test. If DTC B1342 is retrieved again, REMOVE the audio unit and SEND it to an authorized audio system repair facility. REFER to Audio Unit . TEST the system for normal operation. |
| B2406 | Audio Disc CD Player Internal Fault | CLEAR the DTC. CARRY OUT the self-test. If DTC B2406 is retrieved again, REMOVE the audio unit and SEND it to an authorized audio system repair facility. REFER to Audio Unit . TEST the system for normal operation. |
| B2477 | ECU Configuration Failure | CLEAR the DTC. CARRY OUT the self-test. If DTC B2477 is retrieved again, REMOVE the audio unit and SEND it to an authorized audio system repair facility. REFER to Audio Unit . TEST the system for normal operation. |
| B2924 | Audio Button Stuck | INSPECT the audio unit for a stuck button and REPAIR the concern, if possible. CLEAR the DTC. CARRY OUT the self-test. If DTC B2924 is retrieved again, REMOVE the audio unit and SEND it to an authorized audio system repair facility. REFER to Audio Unit . TEST the system for normal operation. |
| B2965 | Audio System Speaker Circuit Fault | If there is no sound from all speakers, REMOVE the audio unit and SEND it to an authorized audio system repair facility. REFER to Audio Unit
. TEST the system for normal operation after the repair. Otherwise, go to Pinpoint Test C . |
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.