B1252 Mercury Code - USB Port Circuit Short to Ground
Quick Answer
The media hub requires an external power and ground circuit to operate. Common causes include Faulty USB Cable and Port, USB Cable and Port harness is open or shorted, USB Cable and Port circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B1252 Mercury indicates USB Port Circuit Short to Ground.
- Common causes
- Common causes include Faulty USB Cable and Port, USB Cable and Port harness is open or shorted, USB Cable and Port circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B1252 Mercury Description
What are the Possible Causes of the DTC B1252 Mercury?
- Faulty USB Cable and Port
- USB Cable and Port harness is open or shorted
- USB Cable and Port circuit poor electrical connection
- Faulty Accessory Protocol Interface Module (APIM)
How to Fix the DTC B1252 Mercury?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1252 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B1252 Mercury Code
1. What does the OBDII code B1252 mean for a Mercury vehicle?
The B1252 code indicates a USB port circuit short to ground, meaning there is an electrical issue causing the USB port to malfunction.
2. What are the symptoms of code B1252 in a Mercury?
Common symptoms include the USB port not working, inability to charge devices, or loss of connection to media or infotainment systems.
3. What causes the B1252 code in a Mercury?
The primary causes include damaged wiring, a faulty USB port, a shorted circuit, or issues with the vehicle's infotainment system.
4. Can I still drive my Mercury with a B1252 code?
Yes, you can drive the vehicle, as this code typically does not affect drivability. However, it may disrupt USB functionality.
5. How do I fix the B1252 code on my Mercury?
Inspect the USB port and its wiring for damage, repair or replace faulty components, and ensure there are no loose or corroded connections.
6. Is the B1252 code a serious problem?
No, it is not a critical issue, but it can be inconvenient if you rely on the USB port for charging or media connectivity.
7. How much does it cost to repair the B1252 code in a Mercury?
Repair costs depend on the extent of the damage. Replacing a USB port or repairing wiring may range between $50 and $200, excluding labor.
8. Can I diagnose the B1252 code myself?
Yes, you can use a multimeter to check for continuity and inspect the USB port and wiring for visible damage or loose connections.
9. Will clearing the code fix the B1252 issue permanently?
No, clearing the code without addressing the underlying issue will only temporarily remove the warning, and the problem will likely return.
10. Is the B1252 code related to the car battery?
Not directly, but power supply issues or voltage irregularities could potentially contribute to the USB circuit malfunction.
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