AutoCodes – Ford – B1251 Ford

B1251 Ford Code - Tire Pressure Sensor Low Battery No Sub Type Information

Quick Answer

The Body Control Module (BCM) monitors the Tire Pressure Sensor. Common causes include Faulty Tire Pressure Sensor, Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B1251 Ford indicates Tire Pressure Sensor Low Battery No Sub Type Information.
Common causes: Common causes include Faulty Tire Pressure Sensor, Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 4,568

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1251 Ford Description

The Body Control Module (BCM) monitors the Tire Pressure Sensor. The OBDII code is set by the BCM in continuous memory when attempting to train a Tire Pressure Monitor System (TPMS) Warning Light ON sensor(s) with a low battery. The TPMS warning indicator flashes for 70 seconds and then remains on continuously when the ignition is turned to the ON position, and the message center displays TIRE PRESSURE SENSOR FAULT.

OBDII Code B1251 Ford - Tire Pressure Sensor Low Battery No Sub Type Information - AutoCodes.com — B1251 Ford Code - Tire Pressure Sensor Low Battery No Sub Type Information

What does this mean?

What are the Possible Causes of the DTC B1251 Ford?

Faulty Tire Pressure Sensor
Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection

How to Fix the DTC B1251 Ford?

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 B1251 Ford 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.

Need more information about the B1251 Ford code?

Need more information on how to fix the B1251 Ford code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1251 Ford Code

1. What are the common symptoms of OBDII code B1251 in a Ford related to Tire Pressure Sensor Low Battery No Sub Type Information?

- The most common symptom is a warning light on the dashboard indicating an issue with the tire pressure monitoring system.

2. What could be causing the OBDII code B1251 to appear in a Ford vehicle?

- The code B1251 typically indicates that the battery in one of the tire pressure sensors is running low or needs replacement.

3. How can I diagnose the Tire Pressure Sensor Low Battery No Sub Type Information issue in my Ford?

- To diagnose this issue, you can use a diagnostic scanner that is capable of reading OBDII codes to pinpoint which tire pressure sensor is reporting a low battery.

4. Can I continue driving my Ford with the Tire Pressure Sensor Low Battery No Sub Type Information code active?

- It is generally safe to drive with this code, but it is important to address the low battery issue in the tire pressure sensor as soon as possible to ensure accurate tire pressure monitoring.

5. What is the typical repair for OBDII code B1251 in a Ford related to Tire Pressure Sensor Low Battery No Sub Type Information?

- The typical repair involves replacing the battery in the affected tire pressure sensor or replacing the sensor altogether if the battery is not replaceable.

6. How can I prevent the Tire Pressure Sensor Low Battery No Sub Type Information issue from recurring in my Ford?

- Regularly checking and maintaining the tire pressure sensors, including replacing the batteries as needed, can help prevent this issue from occurring again.

7. Are there any aftermarket solutions available to address the OBDII code B1251 in a Ford?

- Yes, there are aftermarket tire pressure monitoring system (TPMS) sensor kits available that can be installed to replace the factory sensors and prevent the low battery issue.

8. Can weather conditions affect the battery life of tire pressure sensors in a Ford, leading to the B1251 code?

- Extreme temperatures, especially cold weather, can impact the battery life of tire pressure sensors and contribute to triggering the B1251 code.

9. How much does it typically cost to replace the battery in a tire pressure sensor to resolve the B1251 code in a Ford?

- The cost of replacing a tire pressure sensor battery can vary depending on the vehicle model and the type of sensor, but it is generally an affordable repair.

10. Is it possible to reset the OBDII code B1251 related to Tire Pressure Sensor Low Battery No Sub Type Information without replacing the sensor or battery?

- While clearing the code temporarily may be possible, the underlying issue of the low battery in the tire pressure sensor will still need to be addressed to prevent the code from reappearing.