B1255 Code - Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
Quick Answer
The B1255 code indicates that the left rear tire pressure sensor and transmitter assembly in the vehicle has not been programmed. Common causes include Sensor not properly programmed during installation, Faulty sensor or transmitter assembly, Electrical issues within the TPMS system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1255 indicates Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed.
- Common causes
- Common causes include Sensor not properly programmed during installation, Faulty sensor or transmitter assembly, Electrical issues within the TPMS system.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code B1255 Description
The B1255 code indicates that the left rear tire pressure sensor and transmitter assembly in the vehicle has not been programmed. Tire pressure monitoring systems (TPMS) are designed to alert the driver when the tire pressure in one or more tires is significantly underinflated, which could potentially compromise safety, fuel efficiency, and tire life. The TPMS relies on sensors located in each tire to transmit data to the vehicle's onboard computer, which then alerts the driver if any tire is outside the recommended pressure range.
Common Causes of B1255
- Sensor not properly programmed during installation
- Faulty sensor or transmitter assembly
- Electrical issues within the TPMS system
- Interference from external sources affecting sensor communication
- Vehicle software or firmware issues
Symptoms of B1255
- TPMS warning light illuminated on the dashboard
- Inaccurate tire pressure readings displayed on the instrument cluster
- Reduced fuel efficiency
- Uneven tire wear
- Handling or braking issues
How to Fix B1255
- Use a TPMS tool to program the left rear tire pressure sensor and transmitter assembly according to the manufacturer's specifications.
- Verify proper communication between the sensor and the vehicle's computer.
- Check for any electrical issues in the TPMS system and repair as necessary.
- Test drive the vehicle to ensure the TPMS warning light is no longer illuminated and that accurate tire pressure readings are being displayed.
- Reset the TPMS system if needed to clear the error code and ensure proper functionality.
Cost to Fix B1255
The typical repair cost for addressing a B1255 code related to the left rear tire pressure sensor and transmitter assembly not being programmed can range from $50 to $200, depending on the specific cause of the issue and the labor rates at the auto repair shop. Additional costs may apply if any components need to be replaced or if there are underlying electrical issues that require troubleshooting. It is recommended to consult with a qualified mechanic to get an accurate estimate based on the vehicle's make and model, as well as the extent of the repairs needed.
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Code B1255 Information for Specific Makes
- B1255 Acura — Combination Switch Control Unit Lost Communication With MICU
- B1255 Ford — Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
- B1255 Honda — Combination Switch Control Unit Lost Communication With MICU
- B1255 Lincoln — Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
- B1255 Mercury — Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
Frequently Asked Questions about B1255 Code
1. What does the OBDII code B1255 mean?
The B1255 code indicates that the left rear tire pressure sensor and transmitter assembly is not programmed or not recognized by the vehicle's tire pressure monitoring system (TPMS).
2. What are the common symptoms of code B1255?
Common symptoms include a TPMS warning light on the dashboard, inaccurate tire pressure readings, or no readings for the left rear tire.
3. What causes the B1255 code to appear?
This code is typically caused by an unprogrammed or faulty left rear tire pressure sensor, incorrect sensor installation, or software issues in the TPMS.
4. Can I drive my vehicle with the B1255 code active?
Yes, but it's not recommended for long-term use since you won't receive accurate tire pressure monitoring for the left rear tire, which could compromise safety.
5. How do I fix the B1255 code?
Reprogram the left rear tire pressure sensor using a TPMS tool or scan tool, or replace the sensor if it’s damaged or non-functional.
6. Do I need to replace the left rear tire pressure sensor to clear the B1255 code?
Not always. The sensor may only need to be reprogrammed or re-synced with the vehicle's TPMS.
7. Can a dead sensor battery cause the B1255 code?
Yes, a dead or low battery in the tire pressure sensor can prevent it from transmitting data, triggering the code.
8. What tools are needed to diagnose and repair the B1255 code?
You’ll need a TPMS scan tool, a tire pressure gauge, and potentially a tire removal tool if sensor replacement is required.
9. Does replacing the tire affect the B1255 code?
It can if the tire replacement process damages the sensor or if the sensor was not reprogrammed after installation.
10. How much does it cost to fix the B1255 code?
Costs vary depending on whether reprogramming or sensor replacement is needed. Reprogramming typically costs $50–$100, while a new sensor can cost $50–$250, plus labor.
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