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Engine-Codes – Lincoln – B120A Lincoln

B120A Lincoln Code - Passenger Seat Cushion Temperature Sensor

Quick Answer

The B120A diagnostic trouble code for Lincoln vehicles specifically refers to an issue with the passenger seat cushion temperature sensor. Common causes include Failed passenger seat cushion temperature sensor, Wiring issues or electrical connection problems related to the sensor, Corrosion or damage to the sensor due to moisture or debris. 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
B120A Lincoln indicates Passenger Seat Cushion Temperature Sensor.
Common causes
Common causes include Failed passenger seat cushion temperature sensor, Wiring issues or electrical connection problems related to the sensor, Corrosion or damage to the sensor due to moisture or debris.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code B120A Lincoln Description

The B120A diagnostic trouble code for Lincoln vehicles specifically refers to an issue with the passenger seat cushion temperature sensor. This sensor is responsible for monitoring the temperature of the passenger seat cushion to provide a comfortable environment for the occupants. When this sensor malfunctions or fails, it can lead to discomfort for the passenger and potentially impact the overall climate control system of the vehicle.

OBDII Code B120A Lincoln - Passenger Seat Cushion Temperature Sensor
B120A Lincoln Code - Passenger Seat Cushion Temperature Sensor

Common Causes of B120A Lincoln

  1. Failed passenger seat cushion temperature sensor.
  2. Wiring issues or electrical connection problems related to the sensor.
  3. Corrosion or damage to the sensor due to moisture or debris.
  4. Faulty climate control module that is not receiving accurate temperature readings from the sensor.

Symptoms of B120A Lincoln

  1. Inaccurate temperature readings on the climate control system display.
  2. Unresponsive climate control system when adjusting the passenger seat temperature.
  3. Uneven heating or cooling of the passenger seat cushion.
  4. Climate control system blowing hot or cold air intermittently.

How to Fix B120A Lincoln

  1. Diagnose the issue by using a diagnostic scanner to retrieve the specific error code (B120A) and pinpoint the exact cause of the problem.
  2. Inspect the wiring and electrical connections related to the passenger seat cushion temperature sensor for any signs of damage or corrosion.
  3. Replace the faulty sensor with a new one and ensure proper installation to ensure accurate temperature readings are being sent to the climate control system.
  4. Clear the error code from the vehicle's memory using the diagnostic scanner to reset the system and ensure the repair was successful.
  5. Test the climate control system to verify that the passenger seat cushion temperature sensor is now functioning correctly and providing accurate temperature readings.

Cost to Fix B120A Lincoln

The typical repair costs for addressing a B120A diagnostic trouble code related to the passenger seat cushion temperature sensor can vary depending on the specific cause of the issue. In general, the cost of replacing the sensor and addressing any related wiring or electrical issues can range from $150 to $400, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary based on location, vehicle make and model, and engine type. It's advisable to check with local shops to get a more precise estimate for this repair.

What does this mean?

Tech Notes for B120A Lincoln

B120A:01 Passenger Seat Cushion Temperature Sensor General Electrical Failure

B120A:98 Passenger Seat Cushion Temperature Sensor Component or System Over Temperature

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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 B120A Lincoln Code

1. What are common symptoms of OBDII code B120A in a Lincoln related to the Passenger Seat Cushion Temperature Sensor?

- Common symptoms include issues with the passenger seat heating or cooling functions, inconsistent temperature control, or a warning light on the dashboard.

2. What is the typical cause of OBDII code B120A related to the Passenger Seat Cushion Temperature Sensor in a Lincoln?

- The code B120A is typically triggered by a faulty passenger seat cushion temperature sensor, which may be damaged or malfunctioning.

3. How can I diagnose the issue causing OBDII code B120A in my Lincoln related to the Passenger Seat Cushion Temperature Sensor?

- Diagnosis involves using a diagnostic scanner to read the code, checking the passenger seat cushion temperature sensor for proper function, and inspecting the wiring and connectors for any issues.

4. Can I repair the Passenger Seat Cushion Temperature Sensor issue causing OBDII code B120A in my Lincoln myself?

- Depending on your experience and tools, you may be able to replace the faulty passenger seat cushion temperature sensor yourself. However, it is recommended to consult a professional technician for accurate diagnosis and repair.

5. Are there any common mistakes to avoid when dealing with OBDII code B120A related to the Passenger Seat Cushion Temperature Sensor in a Lincoln?

- One common mistake to avoid is overlooking other potential causes for the code, such as wiring issues or problems with the seat control module, which may also trigger the B120A code.

6. Is it safe to drive my Lincoln with OBDII code B120A related to the Passenger Seat Cushion Temperature Sensor?

- While the code itself may not pose an immediate safety risk, it is recommended to address the underlying issue promptly to ensure the proper functioning of the passenger seat features.

7. How much does it typically cost to repair OBDII code B120A related to the Passenger Seat Cushion Temperature Sensor in a Lincoln?

- Repair costs can vary depending on the exact cause of the issue and whether you choose to do the repair yourself or seek professional help. Costs may include parts and labor.

8. Can resetting the OBDII codes clear the B120A code related to the Passenger Seat Cushion Temperature Sensor in my Lincoln?

- Resetting the codes may temporarily clear the warning light, but if the underlying issue with the passenger seat cushion temperature sensor is not addressed, the code is likely to reappear.

9. Are there any recalls or technical service bulletins related to OBDII code B120A in Lincolns?

- It is recommended to check with your local Lincoln dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins related to the B120A code in your specific Lincoln model.

10. How can I prevent OBDII code B120A related to the Passenger Seat Cushion Temperature Sensor from occurring in my Lincoln?

- Regularly inspecting and maintaining the passenger seat cushion temperature sensor, as well as following proper seating care guidelines, can help prevent issues that may trigger the B120A code.

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