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Engine-Codes – Generic – B2140

B2140 Code - Outside Rearview Mirror Reached Limit Of Travel

Quick Answer

The B2140 code indicates that the outside rearview mirror on the vehicle has reached its limit of travel. Common causes include Faulty mirror motor, Wiring issues or electrical connection problems, Control module malfunction. 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
B2140 indicates Outside Rearview Mirror Reached Limit Of Travel.
Common causes
Common causes include Faulty mirror motor, Wiring issues or electrical connection problems, Control module malfunction.
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 06, 2024
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Code B2140 Description

The B2140 code indicates that the outside rearview mirror on the vehicle has reached its limit of travel. This means that the mirror is unable to move any further in a particular direction, which can hinder the driver's ability to properly adjust and view the mirror. This issue can affect the vehicle's safety as it may limit the driver's visibility, especially when changing lanes or parking. The code is usually triggered by a malfunction in the mirror's motor or control system, which prevents it from adjusting properly.

OBDII Code B2140 - Outside Rearview Mirror Reached Limit Of Travel
B2140 Code - Outside Rearview Mirror Reached Limit Of Travel

Common Causes of B2140

  1. Faulty mirror motor.
  2. Wiring issues or electrical connection problems.
  3. Control module malfunction.
  4. Physical obstruction preventing the mirror from moving.
  5. Impact or damage to the mirror assembly.

Symptoms of B2140

  1. Inability to adjust the outside rearview mirror in a specific direction.
  2. Unusual noises coming from the mirror when attempting to adjust it.
  3. Mirror moves intermittently or erratically.
  4. Mirror remains stuck in one position.

How to Fix B2140

  1. Inspect the mirror assembly for any physical obstructions or damage.
  2. Check the wiring and electrical connections for any loose or damaged wires.
  3. Test the mirror motor and control module for proper functionality.
  4. Replace any faulty components such as the mirror motor or control module.
  5. Reset the mirror's position and ensure it can move smoothly in all directions.

Cost to Fix B2140

The typical repair costs for addressing the B2140 code can vary depending on the specific cause of the issue and the parts needed for the repair. On average, the cost for parts and labor to fix this problem could range from $100 to $300. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get a detailed estimate from a professional mechanic before proceeding with the repair.

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Code B2140 Information for Specific Makes

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 B2140 Code

1. What does the OBDII code B2140 mean?

B2140 indicates that the outside rearview mirror has reached its limit of travel, meaning the mirror motor or control system is unable to move the mirror beyond a certain point.

2. What are the common symptoms of the B2140 code?

Symptoms include the inability to adjust the mirror in one or more directions, unusual noises when adjusting the mirror, or the mirror being stuck in one position.

3. What causes the B2140 code to appear?

Common causes include a faulty mirror motor, debris or obstruction preventing mirror movement, an electrical issue with the mirror control module, or a damaged mirror assembly.

4. How can I diagnose the B2140 code?

Start by visually inspecting the mirror for physical obstructions or damage, test the mirror adjustment controls, and use a diagnostic scan tool to check for related codes or electrical faults.

5. Can I still drive with the B2140 code active?

Yes, it is generally safe to drive with this code, but it may compromise visibility if the mirror cannot be properly adjusted, which could pose a safety risk.

6. How do I fix the B2140 code?

Repairs may include cleaning or removing obstructions, replacing the mirror motor, repairing wiring or connectors, or replacing the entire mirror assembly if necessary.

7. Is the B2140 code specific to one type of vehicle?

No, this code can appear on various vehicle makes and models equipped with powered outside rearview mirrors, but specific diagnostic and repair steps may vary.

8. How much does it cost to repair the B2140 code?

Repair costs depend on the issue's cause, ranging from $50 for cleaning and minor fixes to $200-$400 for replacing the mirror assembly or motor.

9. Will resetting the code fix the B2140 issue?

Resetting the code may temporarily clear it, but the root cause must be addressed to prevent it from reappearing.

10. Can a blown fuse cause the B2140 code?

While uncommon, a blown fuse in the mirror control circuit could lead to this code if it disrupts power to the mirror motor. Always check the fuse box during diagnosis.

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