AutoCodes – GMC – B2103 GMC

B2103 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: B2103 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 1,142

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 B2103 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 B2103 GMC - Power Seat Switch Shorted - AutoCodes.com — B2103 GMC Code - Power Seat Switch Shorted

What does this mean?

What are the Possible Causes of the DTC B2103 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 B2103 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 B2103 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 B2103 GMC Code

1. What are common symptoms of OBDII code B2103 GMC (Power Seat Switch Shorted)?

- Common symptoms include non-functional power seat controls, erratic movement of the power seat, and potentially a blown fuse related to the power seat.

2. What are the possible causes of OBDII code B2103 GMC (Power Seat Switch Shorted)?

- The code B2103 can be triggered by a short circuit in the power seat switch wiring, a faulty power seat switch, or a malfunction in the power seat control module.

3. How can I diagnose OBDII code B2103 GMC (Power Seat Switch Shorted)?

- Diagnosing this code typically involves inspecting the wiring harness and connectors related to the power seat switch, testing the power seat switch for continuity, and checking the power seat control module for proper functioning.

4. Can I still drive my vehicle with OBDII code B2103 GMC (Power Seat Switch Shorted)?

- While it may be possible to drive the vehicle with this code, it is not recommended as the power seat controls may not function properly, leading to discomfort or safety concerns while driving.

5. How can I repair OBDII code B2103 GMC (Power Seat Switch Shorted) on my own?

- DIY repairs may involve checking and repairing any damaged wiring, replacing the power seat switch if faulty, or resetting the power seat control module to clear the code.

6. Is it safe to reset the OBDII code B2103 GMC (Power Seat Switch Shorted) without fixing the underlying issue?

- Resetting the code without addressing the root cause may temporarily clear the warning light, but the issue will likely reoccur until the underlying problem with the power seat switch or wiring is fixed.

7. How much does it typically cost to repair OBDII code B2103 GMC (Power Seat Switch Shorted) at a repair shop?

- Repair costs for this code can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 to $300 for parts and labor at a repair shop.

8. Can a faulty power seat switch cause other OBDII codes to appear?

- Yes, a faulty power seat switch can lead to other related OBDII codes, such as circuit malfunction or communication errors within the power seat system.

9. Is it necessary to replace the entire power seat assembly if I encounter OBDII code B2103 GMC (Power Seat Switch Shorted)?

- In most cases, only the faulty component, such as the power seat switch or a damaged wire, needs to be replaced or repaired, rather than the entire power seat assembly.

10. What steps should I take if OBDII code B2103 GMC (Power Seat Switch Shorted) keeps reappearing after repairs?

- If the code persists after repairs, it may indicate an ongoing issue with the power seat system that requires further diagnosis by a qualified technician to pinpoint and address the root cause.