AutoCodes – GMC – B2131 GMC

B2131 GMC Code - Memory Recall Switch Circuit Active

Quick Answer

The memory function switches are normally open and are wired directly to the to the Memory Mirror Module (MMM). Common causes include Faulty Memory Recall Switch, Memory Recall Switch harness is open or shorted, Memory Recall 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: B2131 GMC indicates Memory Recall Switch Circuit Active.
Common causes: Common causes include Faulty Memory Recall Switch, Memory Recall Switch harness is open or shorted, Memory Recall 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 492

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2131 GMC Description

The memory function switches are normally open and are wired directly to the to the Memory Mirror Module (MMM). When a memory recall switch is pressed, the switch pulls the 5 V signal circuit from the MMM low. The MMM senses that a memory recall signal was pulled low and a class 2 message is sent out to the Memory Seat Module (MSM) identifying that the circuit is active. In response to this message, the MSM performs the requested function. If a memory recall switch circuit is active for more than 30 continuous seconds, the circuit will be considered shorted and the MMM will set this Diagnostic Trouble Code (DTC).

OBDII Code B2131 GMC - Memory Recall Switch Circuit Active - AutoCodes.com — B2131 GMC Code - Memory Recall Switch Circuit Active

What does this mean?

What are the Possible Causes of the DTC B2131 GMC?

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

How to Fix the DTC B2131 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 B2131 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 B2131 GMC Code

1. What are the common symptoms of OBDII code B2131 GMC?

The common symptoms of OBDII code B2131 GMC, Memory Recall Switch Circuit Active, include issues with the memory recall switch functionality in the vehicle, such as the inability to recall saved settings for seats, mirrors, or other features.

2. What can cause the OBDII code B2131 GMC to trigger?

The OBDII code B2131 GMC, Memory Recall Switch Circuit Active, can be triggered by a faulty memory recall switch, a wiring issue in the circuit, or a problem with the control module.

3. How can I diagnose the cause of OBDII code B2131 GMC?

To diagnose the cause of OBDII code B2131 GMC, a thorough inspection of the memory recall switch, wiring connections, and related components is recommended. Testing the switch for proper functionality and checking for any damaged wires or loose connections can help pinpoint the issue.

4. What are some repair tips for addressing OBDII code B2131 GMC?

Repairing OBDII code B2131 GMC may involve replacing a faulty memory recall switch, repairing damaged wiring, or resetting the control module. It's essential to follow the manufacturer's diagnostic and repair procedures to ensure a proper fix.

5. Can OBDII code B2131 GMC be reset without repairs?

Resetting OBDII code B2131 GMC without addressing the underlying issue may temporarily clear the code, but the problem is likely to recur. It's recommended to diagnose and repair the root cause to prevent further issues.

6. Is it safe to continue driving with OBDII code B2131 GMC active?

While OBDII code B2131 GMC may not affect the drivability of the vehicle, it can impact the convenience and functionality of the memory recall switch feature. It's advisable to address the issue promptly to restore full functionality.

7. Can a DIY enthusiast fix OBDII code B2131 GMC?

Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address OBDII code B2131 GMC by following the manufacturer's repair guidelines. However, complex electrical issues may require professional assistance.

8. How much does it typically cost to repair OBDII code B2131 GMC?

The cost of repairing OBDII code B2131 GMC can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges. It's recommended to obtain estimates from reputable automotive repair shops for an accurate cost assessment.

9. Will disconnecting the battery reset OBDII code B2131 GMC?

Disconnecting the battery may reset the vehicle's computer system and temporarily clear OBDII code B2131 GMC. However, if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven and the system detects the fault again.

10. How can I prevent OBDII code B2131 GMC from recurring in the future?

To prevent OBDII code B2131 GMC from recurring, regular maintenance checks on the memory recall switch, wiring connections, and related components are recommended. Addressing any issues promptly and following the manufacturer's maintenance schedule can help prevent future occurrences.