AutoCodesGMC – B2141 GMC

B2141 GMC Code - Outside Rearview Mirror Reached Limit Of Travel

Quick Answer

Outside rearview mirror switch supplies inputs to Memory Mirror Module (MMM) to drive outside rearview mirrors horizontal and vertical motors. Common causes include Faulty Outside Rearview Mirror Switch, Outside Rearview Mirror Switch harness is open or shorted, Outside Rearview Mirror Switch circuit poor electrical connection. 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
B2141 GMC indicates Outside Rearview Mirror Reached Limit Of Travel.
Common causes
Common causes include Faulty Outside Rearview Mirror Switch, Outside Rearview Mirror Switch harness is open or shorted, Outside Rearview Mirror Switch circuit poor electrical connection.
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 Popularity 573
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 19, 2019
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Code B2141 GMC Description

Outside rearview mirror switch supplies inputs to Memory Mirror Module (MMM) to drive outside rearview mirrors horizontal and vertical motors. Outside rearview mirror switch must be in either L or R position in order to operate outside rearview mirror. When outside rearview mirror switch is actuated, the battery voltage input signal and the ground input signal is sent to MMM. When MMM recognizes input combination, it moves the appropriate mirror to the requested direction. If MMM does not recognize input combination as a valid input, it ignores combination and does not move outside rearview mirror.
OBDII Code B2141 GMC - Outside Rearview Mirror Reached Limit Of Travel - AutoCodes.com
B2141 GMC Code - Outside Rearview Mirror Reached Limit Of Travel

What are the Possible Causes of the DTC B2141 GMC?

  • Faulty Outside Rearview Mirror Switch
  • Outside Rearview Mirror Switch harness is open or shorted
  • Outside Rearview Mirror Switch circuit poor electrical connection
  • Faulty Memory Mirror Module (MMM)

How to Fix the DTC B2141 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2141 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 B2141 GMC Code

What does the OBDII code B2141 mean for my GMC vehicle?

The code B2141 indicates that the outside rearview mirror has reached its limit of travel, meaning it cannot move further in the intended direction.

What are the common symptoms of the B2141 code?

Symptoms may include the outside rearview mirror not adjusting properly, an unresponsive mirror control switch, or a warning message related to the mirror in the vehicle’s display.

What could cause the B2141 code to trigger?

Causes may include a faulty mirror control switch, a defective motor within the mirror, wiring issues, or physical obstruction preventing the mirror from moving.

How can I diagnose the issue related to code B2141?

Start by checking the mirror control switch and wiring for damage or corrosion, then inspect the mirror motor for proper function. Use a multimeter to test for power at the mirror connector.

Is it possible to reset the B2141 code?

Yes, you can clear the code using an OBDII scanner after addressing the underlying issue. However, if the problem persists, the code will return.

Can I fix the B2141 code myself?

If you have experience with automotive electrical systems, you may be able to fix it by replacing the faulty components. If unsure, it’s best to consult a professional mechanic.

What parts might need replacement to resolve the B2141 code?

Potential parts for replacement include the mirror control switch, the outside rearview mirror assembly, or damaged wiring harnesses.

How much will it cost to repair the issue associated with the B2141 code?

Repair costs can vary widely depending on the specific problem; it may range from $50 for a simple switch replacement to several hundred dollars for complete mirror assembly replacement.

Is the B2141 code serious, and should I be concerned?

While it may not be a critical safety issue, it can affect visibility. It’s advisable to address the code to ensure proper functionality of the mirrors.

Will ignoring the B2141 code lead to further problems?

Ignoring the code may lead to continued malfunction of the mirror, which can affect safe driving conditions. It’s best to diagnose and repair the issue promptly.

Discuss the causes and fixes for B2141 GMC OBDII Code

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