AutoCodes – Generic – B2131

B2131 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 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 4,391

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

What does this mean?

What are the Possible Causes of the DTC B2131?

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?

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 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.

Need more information about the B2131 code?

Need more information on how to fix the B2131 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2131 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2131 Buick — Memory Recall Switch Circuit Active
B2131 Cadillac — Memory Recall Switch Circuit Active
B2131 Chevrolet — Memory Recall Switch Circuit Active
B2131 GMC — Memory Recall Switch Circuit Active

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 Code

What does the OBDII code B2131 mean?

B2131 indicates a problem with the memory recall switch circuit, which is related to the vehicle's seat or mirror memory functions.

What are common symptoms of the B2131 code?

Symptoms may include the inability to adjust the driver's seat or mirrors to saved memory positions, or the memory recall feature not functioning at all.

What could cause the B2131 code to trigger?

Possible causes include a faulty memory recall switch, a short circuit in the wiring, issues with the body control module (BCM), or a malfunctioning seat/mirror actuator.

How can I diagnose the B2131 code?

To diagnose, start by inspecting the memory recall switch and its connections for damage. Then, use a multimeter to check the wiring for continuity and shorts.

What repairs are commonly needed to fix the B2131 code?

Repairs may involve replacing the memory recall switch, repairing or replacing damaged wiring, or reprogramming or replacing the BCM if it is faulty.

Can I drive my vehicle with the B2131 code?

While you can drive the vehicle, the memory functions for the seat and mirrors may not work properly, which could affect comfort and safety.

Will clearing the B2131 code solve the problem?

Clearing the code may temporarily reset the system, but if the underlying issue isn't fixed, the code will likely return.

Is the B2131 code specific to certain makes or models?

While the B2131 code is used broadly across many vehicles, the specific implementation and symptoms may vary by make and model.

How can I prevent the B2131 code from occurring?

Regularly inspect electrical connections and components related to the memory functions, and ensure that any repairs are promptly addressed to avoid future issues.