B2870 Lincoln Code - Right Rear Tire Pressure Sensor Fault
Quick Answer
The Tire Pressure Monitor (TPM) system monitors the air pressure in the 4 road tires with wheel-mounted tire pressure sensors. Common causes include Low tire pressure, Tire pressure sensor is missing or damaged, Spare tire is installed as a road wheel. 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
- B2870 Lincoln indicates Right Rear Tire Pressure Sensor Fault.
- Common causes
- Common causes include Low tire pressure, Tire pressure sensor is missing or damaged, Spare tire is installed as a road wheel.
- 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.
Code B2870 Lincoln Description
Each tire pressure sensor transmission is compared against a low-pressure limit (pressure listed on vehicle certification label minus 25 percent, which will be about 6-9 psi). If it is determined that the tire pressure has fallen below this limit, the SJB sends a message to the instrument cluster, which then illuminates the low pressure warning indicator and displays the appropriate message(s) in the message center (if equipped).
What are the Possible Causes of the DTC B2870 Lincoln?
- Low tire pressure
- Tire pressure sensor is missing or damaged
- Spare tire is installed as a road wheel
- Incorrect tire pressure sensor is installed
- Tire pressure sensor installed incorrectly
- Faulty Right Rear Tire Pressure Sensor
How to Fix the DTC B2870 Lincoln?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2870 Lincoln 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 B2870 Lincoln Code
1. What are the common symptoms of OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault)?
- The most common symptoms include a dashboard warning light for tire pressure monitoring system (TPMS) and inaccurate or missing tire pressure readings for the right rear tire.
2. What are the possible causes of OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault)?
- The code B2870 can be triggered by a faulty right rear tire pressure sensor, low tire pressure in the right rear tire, sensor battery issues, or wiring/connectivity problems.
3. How can I diagnose the root cause of OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault)?
- To diagnose the issue, you can use a TPMS diagnostic tool to read sensor data, check the tire pressure in the right rear tire manually, inspect the sensor for physical damage, and test the sensor's battery voltage.
4. Can I reset OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault) without replacing any parts?
- In some cases, you may be able to reset the code by inflating the right rear tire to the correct pressure and performing a TPMS reset procedure using the vehicle's onboard system.
5. How should I proceed if I suspect a faulty right rear tire pressure sensor is causing OBDII code B2870 Lincoln?
- If you suspect a faulty sensor, it is recommended to replace the right rear tire pressure sensor with a new, compatible part to resolve the issue.
6. Are there any DIY repair tips for addressing OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault)?
- DIY enthusiasts can attempt to replace the right rear tire pressure sensor themselves using basic tools, following manufacturer guidelines, and ensuring proper sensor programming after installation.
7. Is it safe to continue driving with OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault) unresolved?
- While driving with the fault code may not immediately affect vehicle performance, it is important to address TPMS issues promptly to ensure accurate tire pressure monitoring and safe driving conditions.
8. Can extreme weather conditions or tire damage trigger OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault)?
- Yes, extreme temperatures, tire punctures, or physical damage to the right rear tire can potentially cause sensor malfunctions and trigger the B2870 fault code.
9. How much does it typically cost to repair OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault) at a dealership or repair shop?
- Repair costs for addressing the B2870 code can vary depending on the specific issue, but replacing a faulty tire pressure sensor at a dealership or repair shop may range from $100 to $200 or more.
10. Are there any preventive measures I can take to avoid OBDII code B2870 Lincoln (Right Rear Tire Pressure Sensor Fault) in the future?
- Regularly checking and maintaining proper tire pressure, avoiding rough road conditions, and ensuring timely sensor battery replacements can help prevent recurrence of the B2870 fault code.
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