B2871 Lincoln Code - Left Rear Tire Pressure Sensor Fault
Quick Answer
The B2871 diagnostic trouble code for Lincoln vehicles indicates a fault with the left rear tire pressure sensor. Common causes include Faulty left rear tire pressure sensor, Corrosion or damage to the sensor's wiring or connectors, Low battery voltage in the sensor. 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
- B2871 Lincoln indicates Left Rear Tire Pressure Sensor Fault.
- Common causes
- Common causes include Faulty left rear tire pressure sensor, Corrosion or damage to the sensor's wiring or connectors, Low battery voltage in the sensor.
- 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 B2871 Lincoln Description
The B2871 diagnostic trouble code for Lincoln vehicles indicates a fault with the left rear tire pressure sensor. This sensor is a crucial component of the vehicle's tire pressure monitoring system (TPMS), which is responsible for monitoring the air pressure in each tire and alerting the driver if there is a significant deviation from the recommended pressure levels. The TPMS plays a vital role in ensuring optimal tire performance, fuel efficiency, and overall vehicle safety.
Common Causes of B2871 Lincoln
- Faulty left rear tire pressure sensor.
- Corrosion or damage to the sensor's wiring or connectors.
- Low battery voltage in the sensor.
- Interference from other electronic devices or signals.
- Issues with the vehicle's onboard computer system.
Symptoms of B2871 Lincoln
- TPMS warning light illuminated on the dashboard.
- Inaccurate tire pressure readings displayed on the dashboard.
- Increased tire wear on the left rear tire.
- Decreased fuel efficiency.
- Handling or braking issues, especially when driving at high speeds.
How to Fix B2871 Lincoln
- Begin by confirming the diagnosis of a faulty left rear tire pressure sensor using a TPMS tool.
- Remove the left rear tire to access the sensor, which is typically located inside the tire.
- Replace the faulty sensor with a new, compatible sensor.
- Reinstall the tire and reset the TPMS system to ensure proper calibration.
- Test drive the vehicle to verify that the TPMS warning light is no longer illuminated and that accurate tire pressure readings are displayed.
Cost to Fix B2871 Lincoln
The cost of repairing a left rear tire pressure sensor fault can vary depending on the make and model of the vehicle, as well as the specific sensor needed for replacement. On average, the parts for a new sensor can range from $50 to $200, while the labor costs for installation and calibration may add another $50 to $150. Therefore, the total repair cost could fall between $100 and $350. It is important to note that these are rough estimates, and actual costs may differ based on individual circumstances and location. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.
Tech Notes for B2871 Lincoln
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Frequently Asked Questions about B2871 Lincoln Code
1. What does the OBDII code B2871 mean on a Lincoln?
The B2871 code indicates a fault with the left rear tire pressure sensor, meaning it is not transmitting data or functioning properly.
2. What are the common symptoms of the B2871 code?
Symptoms include a tire pressure warning light on the dashboard, incorrect or no tire pressure readings for the left rear tire, and possible warning messages.
3. What causes the B2871 code to appear?
The most common causes are a faulty left rear tire pressure sensor, a dead sensor battery, or wiring/communication issues between the sensor and the vehicle’s TPMS module.
4. How can I fix the B2871 code on my Lincoln?
You may need to replace the left rear tire pressure sensor, reprogram or relearn the sensor, or repair any damaged wiring or connectors in the TPMS system.
5. Can I drive my Lincoln with the B2871 code active?
Yes, but it’s not recommended for long periods, as you won’t receive accurate tire pressure readings, which could lead to unsafe driving conditions.
6. How do I know if the left rear tire pressure sensor needs replacement?
If the sensor battery is dead, it cannot be reprogrammed, or it fails diagnostic testing, it likely needs replacement.
7. How much does it cost to fix the B2871 code?
Replacing a tire pressure sensor typically costs between $50 and $250, depending on parts and labor.
8. Can I reset the B2871 code without replacing the sensor?
You can attempt to clear the code using an OBDII scanner, but if the issue persists, the sensor or related components likely need repair.
9. How long does a tire pressure sensor last?
Most tire pressure sensors last 5-10 years, depending on usage and environmental factors.
10. Do I need special tools to fix the B2871 code?
Yes, you may need a TPMS programming tool and an OBDII scanner to diagnose and reprogram the system after repairs.
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