AutoCodes – GMC – B2711 GMC

B2711 GMC Code - Short Key Pellet

Quick Answer

When the ignition key is inserted in the ignition, the resistance of the key pellet is measured. Common causes include Faulty Ignition Key, Faulty Steering Column Lock Cylinder, Faulty Instrument Panel Cluster (IPC). 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: B2711 GMC indicates Short Key Pellet.
Common causes: Common causes include Faulty Ignition Key, Faulty Steering Column Lock Cylinder, Faulty Instrument Panel Cluster (IPC).
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 707

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 Jan 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2711 GMC Description

When the ignition key is inserted in the ignition, the resistance of the key pellet is measured. Resistance is compared with resistance value stored in IPC memory. DTC B2710 will set when an open or zero resistance value is measured from key pellet prior to obtaining a valid resistance reading. DTC B2711 will set when an open or zero resistance value is measured from key pellet following a valid resistance reading. When DTC B2710 is set as current, IPC will display STARTING DISABLED, REMOVE IGNITION KEY message on drivers message center and prevent the vehicle from starting. When DTC B2711 is set as current, IPC will display THEFT SYSTEM PROBLEM, CAR MAY NOT RESTART message on drivers message center and allow the vehicle to continue to run.

OBDII Code B2711 GMC - Short Key Pellet - AutoCodes.com — B2711 GMC Code - Short Key Pellet

What does this mean?

What are the Possible Causes of the DTC B2711 GMC?

Faulty Ignition Key
Faulty Steering Column Lock Cylinder
Faulty Instrument Panel Cluster (IPC)

How to Fix the DTC B2711 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 B2711 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.

Need more information about the B2711 GMC code?

Need more information on how to fix the B2711 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2711 GMC code diagnosed by a professional: Find a repair shop in your area

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 B2711 GMC Code

1. What are the common symptoms of OBDII code B2711 in a GMC related to "Short Key Pellet"?

The common symptoms include issues with starting the vehicle, intermittent stalling, and potential immobilizer system malfunctions.

2. What could cause the OBDII code B2711 "Short Key Pellet" in a GMC?

The code B2711 is typically triggered by a short circuit in the key pellet or in the key antenna circuit.

3. How can I diagnose the OBDII code B2711 in my GMC?

Diagnosing code B2711 involves checking the key pellet, key antenna, and associated wiring for any signs of damage or short circuits. Using a diagnostic scanner to retrieve the specific fault codes can also help pinpoint the issue.

4. Can a DIY enthusiast repair the OBDII code B2711 "Short Key Pellet" in a GMC?

Repairing code B2711 may require specialized tools and knowledge, so it is recommended to consult a qualified mechanic or dealership for proper diagnosis and repair.

5. Is it safe to continue driving with the OBDII code B2711 in a GMC?

It is not advisable to continue driving with an active OBDII code, as it can lead to further damage to the vehicle's immobilizer system and potentially leave you stranded.

6. How much does it typically cost to repair the OBDII code B2711 in a GMC?

The cost of repairing code B2711 can vary depending on the extent of the damage and the specific components that need to be replaced. It is best to get a professional assessment for an accurate estimate.

7. Can resetting the OBDII system clear the B2711 "Short Key Pellet" code in a GMC?

While resetting the OBDII system may temporarily clear the code, it is important to address the underlying issue causing the fault code to prevent it from recurring.

8. Are there any preventive measures to avoid triggering the OBDII code B2711 in a GMC?

To prevent the OBDII code B2711 "Short Key Pellet," avoid using damaged or aftermarket keys, and ensure the key pellet and antenna components are properly maintained and free from any shorts or damage.

9. Will the OBDII code B2711 in a GMC affect the vehicle's overall performance?

Code B2711 is related to the immobilizer system and may not directly impact the vehicle's performance. However, unresolved issues with the immobilizer system can lead to starting and security issues.

10. How long does it typically take to repair the OBDII code B2711 "Short Key Pellet" in a GMC?

The repair time for code B2711 can vary depending on the extent of the damage and the availability of replacement parts. It is best to consult with a professional technician for an accurate timeframe.