AutoCodes – GMC – B2133 GMC

B2133 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: B2133 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 601

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 B2133 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 B2133 GMC - Memory Recall Switch Circuit Active - AutoCodes.com — B2133 GMC Code - Memory Recall Switch Circuit Active

What does this mean?

What are the Possible Causes of the DTC B2133 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 B2133 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 B2133 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 B2133 GMC Code

1. What are the common symptoms of OBDII code B2133 GMC (Memory Recall Switch Circuit Active)?

The common symptoms include the inability to recall memory settings for seats, mirrors, and other adjustable features in your GMC vehicle.

2. What could cause the OBDII code B2133 GMC to trigger?

The code B2133 is typically triggered by a fault in the memory recall switch circuit, which may be due to a faulty switch, wiring issue, or a problem with the memory module.

3. How can I diagnose the Memory Recall Switch Circuit Active issue in my GMC?

You can diagnose the issue by checking the memory recall switch for proper operation, inspecting the wiring for any damage, and using a scan tool to retrieve the specific error code.

4. Can I repair the B2133 GMC code issue myself?

If you have experience with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty memory recall switch, repairing damaged wiring, or resetting the memory module.

5. Is it safe to drive my GMC with the B2133 code active?

It is generally safe to drive your GMC with the B2133 code active, but you may experience inconvenience due to the loss of memory settings for various features in your vehicle.

6. Will resetting the memory module fix the B2133 code issue?

Resetting the memory module may temporarily clear the code, but if the underlying issue with the memory recall switch circuit is not addressed, the code is likely to reappear.

7. How much does it typically cost to repair the B2133 GMC code at a dealership or repair shop?

The cost of repairing the B2133 code can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a faulty memory recall switch cause other electrical problems in my GMC?

Yes, a faulty memory recall switch can potentially cause other electrical issues in your GMC, especially if it affects the overall operation of the memory module or related circuits.

9. Will disconnecting the battery reset the B2133 code?

Disconnecting the battery may reset the code temporarily, but it is recommended to diagnose and repair the underlying issue to prevent the code from reappearing.

10. How can I prevent the B2133 GMC code from recurring in the future?

To prevent the B2133 code from recurring, it is important to regularly check and maintain the memory recall switch, wiring, and memory module in your GMC vehicle.