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Engine-Codes – Generic – B1951

B1951 Code - Seat Rear Up/Down Potentiometer Feedback Circuit Open

Quick Answer

The B1951 diagnostic trouble code (DTC) indicates an issue with the Seat Rear Up/Down Potentiometer Feedback Circuit Open in the vehicle. Common causes include Damaged wiring or connectors in the seat rear up/down potentiometer feedback circuit, Corrosion or rust affecting the electrical connections in the circuit, Faulty potentiometer sensor causing inaccurate feedback signals. 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
B1951 indicates Seat Rear Up/Down Potentiometer Feedback Circuit Open.
Common causes
Common causes include Damaged wiring or connectors in the seat rear up/down potentiometer feedback circuit, Corrosion or rust affecting the electrical connections in the circuit, Faulty potentiometer sensor causing inaccurate feedback signals.
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 09, 2024
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Code B1951 Description

The B1951 diagnostic trouble code (DTC) indicates an issue with the Seat Rear Up/Down Potentiometer Feedback Circuit Open in the vehicle. This code specifically relates to the feedback circuit that controls the movement of the rear seat in terms of adjusting its position up or down. A potentiometer is a type of sensor that measures the position of the seat and sends feedback to the vehicle's computer system. In this case, the circuit responsible for transmitting this feedback is open, meaning there is a break or interruption in the electrical connection.

OBDII Code B1951 - Seat Rear Up/Down Potentiometer Feedback Circuit Open
B1951 Code - Seat Rear Up/Down Potentiometer Feedback Circuit Open

Common Causes of B1951

  1. Damaged wiring or connectors in the seat rear up/down potentiometer feedback circuit.
  2. Corrosion or rust affecting the electrical connections in the circuit.
  3. Faulty potentiometer sensor causing inaccurate feedback signals.
  4. Impact or physical damage to the rear seat adjustment mechanism.
  5. Electrical issues within the vehicle's wiring system affecting the feedback circuit.

Symptoms of B1951

  1. Inability to adjust the rear seat position up or down.
  2. Erratic movement of the rear seat when attempting to adjust its position.
  3. Warning light illuminated on the dashboard indicating a seat adjustment system fault.
  4. Unusual noises coming from the rear seat adjustment mechanism.
  5. Rear seat getting stuck in a specific position and not responding to adjustment commands.

How to Fix B1951

  1. Begin by diagnosing the specific location of the open circuit using a multimeter to test continuity.
  2. Inspect the wiring and connectors associated with the seat rear up/down potentiometer for any damage or corrosion.
  3. Replace any damaged wiring or connectors, ensuring proper insulation and secure connections.
  4. Test the circuit after repairs to verify that the feedback signals are transmitting correctly.
  5. Clear the DTC from the vehicle's computer system using an OBD-II scanner to reset the warning light.

Cost to Fix B1951

The typical repair costs for addressing the B1951 code related to the Seat Rear Up/Down Potentiometer Feedback Circuit Open can vary depending on the extent of the damage and the specific components that need replacement. On average, the parts required for this repair may range from $50 to $200, while the labor costs can vary between $100 to $300. Overall, the total repair bill could amount to $150 to $500, with additional charges for diagnostic time and any other necessary services. It is recommended to consult with a trusted auto repair shop for an accurate estimate based on your vehicle's make and model, as well as local labor rates.

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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 B1951 Code

1. What are common symptoms of OBDII code B1951?

- Common symptoms include issues with the rear seat not moving up or down properly, malfunctioning seat controls, and potential warning lights on the dashboard.

2. What causes the OBDII code B1951 to trigger?

- The B1951 code is triggered when the rear up/down potentiometer feedback circuit is detected to be open, indicating a fault in the feedback system for the seat adjustment mechanism.

3. How can I diagnose the root cause of OBDII code B1951?

- Diagnosing the B1951 code typically involves checking the wiring and connections related to the rear seat potentiometer, testing the potentiometer itself for proper functionality, and using a scan tool to monitor sensor data.

4. Can I still drive my vehicle with OBDII code B1951 present?

- While it may be possible to drive the vehicle with the B1951 code present, it is not recommended as the seat adjustment function may not work correctly, potentially causing discomfort or safety concerns.

5. What repair steps can I take to address OBDII code B1951?

- Repair steps for the B1951 code may include repairing or replacing damaged wiring, fixing faulty connections, replacing the rear seat potentiometer, and clearing the fault code with a diagnostic tool.

6. Is it safe to attempt DIY repairs for OBDII code B1951?

- DIY repairs for the B1951 code are possible for those with the necessary knowledge and tools. However, if unsure, it is recommended to seek assistance from a professional mechanic to avoid causing further damage.

7. How much does it typically cost to fix OBDII code B1951?

- The cost of fixing the B1951 code can vary depending on the underlying issue, parts needed for repair, labor rates, and whether the repair is done at a dealership or an independent repair shop. It is advisable to get a few quotes for an accurate estimate.

8. Can resetting the OBDII system clear the B1951 code?

- Resetting the OBDII system may temporarily clear the B1951 code, but if the root cause of the issue is not addressed, the code is likely to reappear once the problem is detected again during system checks.

9. Are there any preventive measures to avoid OBDII code B1951 in the future?

- Regularly inspecting the seat adjustment mechanisms, keeping the area clean and free of debris, and addressing any issues promptly can help prevent the occurrence of the B1951 code in the future.

10. Can OBDII code B1951 affect other systems in the vehicle?

- While the B1951 code specifically relates to the rear seat up/down potentiometer feedback circuit, if left unresolved, it may potentially lead to electrical issues affecting other systems in the vehicle due to a fault in the circuit.

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