AutoCodes – GMC – B3055 2017 GMC Sierra

B3055 2017 GMC Sierra Code - No Transponder Modulation or No Transponder

Quick Answer

When a keyless entry transmitter is inserted into the transmitter pocket/slot and the ignition mode switch is pressed, the transponder embedded in the transmitter is energized by the immobilizer antenna exciter coil. Common causes include Faulty Key, Faulty Immobilizer Control Module. 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: B3055 2017 GMC Sierra indicates No Transponder Modulation or No Transponder.
Common causes: Common causes include Faulty Key, Faulty Immobilizer Control Module.
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 270

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 Jun 08, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3055 2017 GMC Sierra Description

When a keyless entry transmitter is inserted into the transmitter pocket/slot and the ignition mode switch is pressed, the transponder embedded in the transmitter is energized by the immobilizer antenna exciter coil. The transponder transmits a signal to the immobilizer control module. The immobilizer control module translates this signal to a serial data message which is sent to the Body Control Module (BCM). The BCM then compares this value to a value stored in memory. If the value is correct, the BCM will send the prerelease password via the serial data circuit to the Engine Control Module (ECM). If the learned key code does not match or a transponder value is not received, the BCM will send the start disable password to the ECM. The Diagnostic Trouble Code (DTC) will be set when the BCM is unable to measure the ignition key/transmitter transponder value.

OBDII Code B3055 2017 GMC Sierra - No Transponder Modulation or No Transponder - AutoCodes.com — B3055 2017 GMC Sierra Code - No Transponder Modulation or No Transponder

What does this mean?

What are the Possible Causes of the DTC B3055 2017 GMC Sierra?

Faulty Key
Faulty Immobilizer Control Module

How to Fix the DTC B3055 2017 GMC Sierra?

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 B3055 2017 GMC Sierra 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 B3055 2017 GMC Sierra code?

Need more information on how to fix the B3055 2017 GMC Sierra code? Get Access to Factory Service Manuals

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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 B3055 2017 GMC Sierra Code

1. What does OBDII code B3055 for a 2017 GMC Sierra mean?

The code B3055 indicates "No Transponder Modulation or No Transponder" in the vehicle's system.

2. What are the common symptoms of OBDII code B3055 in a 2017 GMC Sierra?

Common symptoms include issues with the vehicle's anti-theft system, difficulty starting the engine, and the security light staying illuminated.

3. What are the possible causes of OBDII code B3055 in a 2017 GMC Sierra?

Possible causes include a faulty key fob, a malfunctioning ignition key, problems with the immobilizer system, or issues with the body control module.

4. How can I diagnose the OBDII code B3055 in my 2017 GMC Sierra?

Diagnosis typically involves using a diagnostic scanner to retrieve the specific code, checking the key fob and ignition key for functionality, and inspecting the immobilizer system and body control module for any issues.

5. Can I still drive my 2017 GMC Sierra with OBDII code B3055?

It is not recommended to drive the vehicle with this code present, as it may lead to starting issues or potential security concerns due to the anti-theft system being affected.

6. How can I repair OBDII code B3055 in my 2017 GMC Sierra?

Repair options may include reprogramming the key fob, replacing the ignition key, repairing or replacing the immobilizer system components, or reprogramming the body control module.

7. Are there any DIY tips for addressing OBDII code B3055 in a 2017 GMC Sierra?

DIY tips may include checking the battery in the key fob, ensuring the ignition key is in good condition, and inspecting the wiring and connections related to the immobilizer system and body control module.

8. Is it necessary to reset the OBDII code B3055 after making repairs in a 2017 GMC Sierra?

Yes, it is recommended to clear the code after repairs are made to see if the issue has been successfully resolved and to reset the vehicle's system.

9. How much does it cost to fix OBDII code B3055 in a 2017 GMC Sierra?

The cost of fixing this code can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, reprogramming, or professional diagnostic services.

10. Can a mechanic help me with OBDII code B3055 in my 2017 GMC Sierra?

Yes, a certified mechanic with experience in automotive diagnostics can assist in diagnosing and repairing OBDII code B3055 in your 2017 GMC Sierra.