AutoCodes – GMC – B2101 GMC

B2101 GMC Code - Power Seat Switch Shorted

Quick Answer

When the Power Seat Switches are pressed, the Memory Seat Module (MSM) receives an input from the switch. Common causes include Faulty Power Seat Adjuster Switch, Power Seat Adjuster Switch harness is open or shorted, Power Seat Adjuster 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: B2101 GMC indicates Power Seat Switch Shorted.
Common causes: Common causes include Faulty Power Seat Adjuster Switch, Power Seat Adjuster Switch harness is open or shorted, Power Seat Adjuster 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 669

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 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2101 GMC Description

When the Power Seat Switches are pressed, the Memory Seat Module (MSM) receives an input from the switch. The MSM commands the driver seat to move in response to the switch input. If a seat switch continues to be active for 30 seconds after the motor controlled by that switch reaches the end of its travel, the switch will be considered shorted and the MSM will set the Diagnostic Trouble Code (DTC) or if a position sensor DTC is current and the associated switch is active for 30 continuous seconds, the switch will be considered shorted and the MSM will set the DTC.

OBDII Code B2101 GMC - Power Seat Switch Shorted - AutoCodes.com — B2101 GMC Code - Power Seat Switch Shorted

What does this mean?

What are the Possible Causes of the DTC B2101 GMC?

Faulty Power Seat Adjuster Switch
Power Seat Adjuster Switch harness is open or shorted
Power Seat Adjuster Switch circuit poor electrical connection
Faulty Memory Seat Module (MSM)

How to Fix the DTC B2101 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 B2101 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 B2101 GMC Code

1. What are the common symptoms of OBDII code B2101 GMC (Power Seat Switch Shorted)?

Common symptoms include the power seat not responding to switch inputs, the seat moving in unexpected ways, or the seat controls becoming unresponsive.

2. What are the possible causes of OBDII code B2101 GMC (Power Seat Switch Shorted)?

The code B2101 typically indicates a short circuit within the power seat switch or its wiring, a malfunctioning seat control module, or a faulty power seat motor.

3. How can I diagnose the issue related to OBDII code B2101 GMC (Power Seat Switch Shorted)?

Diagnosis involves inspecting the wiring and connections of the power seat switch, testing the switch for continuity, checking the seat control module, and verifying the power seat motor's operation.

4. Can I still drive my vehicle with OBDII code B2101 GMC (Power Seat Switch Shorted)?

It is not recommended to drive the vehicle with a malfunctioning power seat switch as it may pose a safety hazard or cause discomfort while driving. It is best to address the issue promptly.

5. How can I repair OBDII code B2101 GMC (Power Seat Switch Shorted) myself?

If you have experience with automotive electrical systems, you can attempt to repair the issue by replacing the faulty power seat switch, repairing any damaged wiring, or resetting the seat control module.

6. Is it necessary to visit a mechanic for OBDII code B2101 GMC (Power Seat Switch Shorted)?

While some DIY repairs are possible, seeking professional help from a mechanic or automotive technician is advisable for a thorough diagnosis and proper repair of the power seat switch issue.

7. How much does it cost to repair OBDII code B2101 GMC (Power Seat Switch Shorted)?

The cost of repair can vary depending on the extent of the issue, the parts needed for replacement, and the labor rates of the mechanic. It is recommended to obtain estimates from different repair shops.

8. Can a faulty power seat switch cause other electrical problems in the vehicle?

A faulty power seat switch can potentially cause electrical issues in the vehicle, such as draining the battery if left in an active state or triggering other related codes in the OBDII system.

9. Are there any preventive measures to avoid OBDII code B2101 GMC (Power Seat Switch Shorted)?

Regularly inspecting the power seat switch and its wiring for any signs of wear, avoiding heavy pressure on the seat controls, and addressing any issues promptly can help prevent the occurrence of code B2101.

10. Will resetting the vehicle's computer clear OBDII code B2101 GMC (Power Seat Switch Shorted)?

Resetting the vehicle's computer may temporarily clear the code, but if the underlying issue with the power seat switch or related components is not addressed, the code is likely to reappear.