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Engine-Codes – Generic – B2354

B2354 Code - Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open

Quick Answer

The diagnostic code B2354 indicates a problem with the driver mirror horizontal/vertical feedback potentiometer circuit being open. Common causes include Wiring issues such as frayed or broken wires in the mirror adjustment circuit, Faulty driver mirror feedback potentiometer, Corrosion or loose connections in the electrical components. 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
B2354 indicates Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open.
Common causes
Common causes include Wiring issues such as frayed or broken wires in the mirror adjustment circuit, Faulty driver mirror feedback potentiometer, Corrosion or loose connections in the electrical components.
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 08, 2024
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Code B2354 Description

The diagnostic code B2354 indicates a problem with the driver mirror horizontal/vertical feedback potentiometer circuit being open. In simpler terms, this means that there is an issue with the circuit that controls the movement of the driver's side mirror in both horizontal and vertical directions. This can affect the functionality of the mirror adjustment system in the vehicle, making it difficult for the driver to properly adjust the mirror for optimal visibility.

OBDII Code B2354 - Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open
B2354 Code - Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open

Common Causes of B2354

  1. Wiring issues such as frayed or broken wires in the mirror adjustment circuit.
  2. Faulty driver mirror feedback potentiometer.
  3. Corrosion or loose connections in the electrical components.
  4. Water ingress or moisture damage affecting the circuit.
  5. Impact or physical damage to the mirror assembly causing a break in the circuit.

Symptoms of B2354

  1. Inability to adjust the driver's side mirror in both horizontal and vertical directions.
  2. Mirror moves erratically or only in one direction.
  3. Mirror position does not hold or drifts out of place.
  4. Warning light on the dashboard indicating a mirror system fault.

How to Fix B2354

  1. Begin by visually inspecting the wiring and connections in the mirror adjustment circuit for any visible damage or corrosion.
  2. Test the driver mirror feedback potentiometer with a multimeter to determine if it is functioning properly.
  3. Replace any damaged wiring or connectors in the circuit.
  4. Replace the driver mirror feedback potentiometer if it is found to be faulty.
  5. Test the mirror adjustment system after repairs to ensure proper functionality.

Cost to Fix B2354

The cost of repairing a driver mirror horizontal/vertical feedback potentiometer circuit open issue can vary depending on the extent of the damage and the cost of parts. On average, the parts for this repair can range from $50 to $150, while the labor costs can add another $100 to $200 to the total bill. With the average labor rate of $80 to $150 per hour, the total repair cost could be between $150 and $350. It is important to note that prices can vary based on location, vehicle make and model, and the specific diagnosis and repair process required. It is advisable to consult with a trusted auto repair shop for a more accurate cost estimate.

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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 B2354 Code

1. What are the common symptoms of OBDII code B2354?

The common symptoms of OBDII code B2354 include malfunctioning driver-side mirror adjustments, mirror movement issues, and an illuminated "Check Engine" light on the dashboard.

2. What causes the OBDII code B2354 - Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open?

The B2354 code is typically caused by a faulty driver mirror potentiometer, damaged wiring or connectors in the mirror system, or a malfunctioning mirror control module.

3. How can I diagnose the OBDII code B2354?

Diagnosing code B2354 involves inspecting the driver-side mirror for any visible damage, checking the wiring and connectors for continuity and corrosion, and using a multimeter to test the potentiometer's resistance values.

4. Can I still drive my vehicle with the OBDII code B2354 present?

While it may be possible to drive the vehicle with the B2354 code, it is not recommended as the mirror adjustments play a crucial role in driving safety and visibility. We advise addressing the issue promptly.

5. What is the repair process for OBDII code B2354?

The repair process for code B2354 involves replacing the faulty driver mirror potentiometer, repairing or replacing damaged wiring or connectors, and clearing the trouble codes from the vehicle's computer using an OBDII scanner.

6. Are there any DIY tips for fixing the OBDII code B2354?

If you have experience working with automotive electrical systems, you may attempt to replace the driver mirror potentiometer yourself. However, it is recommended to consult a professional technician for accurate diagnosis and repair.

7. How much does it typically cost to repair the OBDII code B2354?

The cost of repairing OBDII code B2354 can vary depending on the extent of the damage and the specific components that need replacement. On average, the repair cost can range from $100 to $300 at a repair shop.

8. Can a disconnected or loose mirror adjustment switch cause the OBDII code B2354?

Yes, a disconnected or loose mirror adjustment switch can potentially trigger the B2354 code if it disrupts the feedback signal from the driver mirror potentiometer to the control module. Ensure all connections are secure during diagnosis.

9. Will resetting the OBDII code B2354 make it go away permanently?

Resetting the B2354 code may temporarily turn off the "Check Engine" light, but if the underlying issue such as a faulty potentiometer or wiring is not addressed, the code is likely to reappear once the problem is detected again.

10. Is it safe to ignore the OBDII code B2354 and continue driving without repairing it?

Ignoring the B2354 code can lead to ongoing issues with the driver-side mirror adjustments, potentially affecting your visibility while driving. It is recommended to address the problem promptly to ensure safe operation of the vehicle.

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