AutoCodesChevrolet – B3055 2015 Chevrolet Silverado

B3055 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 358
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 08, 2023
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Code B3055 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado - No Transponder Modulation or No Transponder - AutoCodes.com
B3055 2015 Chevrolet Silverado Code - No Transponder Modulation or No Transponder

What are the Possible Causes of the DTC B3055 2015 Chevrolet Silverado?

  • Faulty Key
  • Faulty Immobilizer Control Module

How to Fix the DTC B3055 2015 Chevrolet Silverado?

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 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado code?

Need more information on how to fix the B3055 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3055 2015 Chevrolet Silverado 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 B3055 2015 Chevrolet Silverado Code

1. What does the OBDII code B3055 mean on a 2015 Chevrolet Silverado?

The B3055 code indicates "No Transponder Modulation" or "No Transponder," meaning the vehicle's immobilizer system is unable to detect or communicate with the key's transponder.

2. What are the common symptoms of the B3055 code on a 2015 Chevrolet Silverado?

Common symptoms include the engine not starting, the security light staying illuminated or flashing, and potential "key not detected" messages.

3. What causes the B3055 code to appear in a 2015 Chevrolet Silverado?

The code can be caused by a damaged or unprogrammed key, a faulty ignition switch, a malfunctioning immobilizer system, or wiring issues between the key transponder and the vehicle's control module.

4. How can I fix the B3055 code on my 2015 Chevrolet Silverado?

Start by checking the key for damage and replacing or reprogramming it if necessary. Inspect the ignition switch and related wiring for faults. If the issue persists, the immobilizer system may need professional diagnosis.

5. Can a dead key fob battery trigger the B3055 code?

No, the B3055 code is related to the immobilizer system, not the key fob battery. However, a non-functional key transponder or an unprogrammed key could trigger the code.

6. Does the B3055 code mean the key needs to be reprogrammed?

It’s possible. If the key’s transponder is unprogrammed or becomes desynchronized with the vehicle, reprogramming the key may resolve the issue.

7. Can I still drive my 2015 Chevrolet Silverado with a B3055 code?

No, the vehicle is unlikely to start if this code is active, as the immobilizer system prevents the engine from running without a valid key.

8. How much does it cost to fix the B3055 code on a 2015 Chevrolet Silverado?

The cost depends on the underlying issue. Replacing and programming a key may cost $100–$300, while repairing the immobilizer system or wiring could increase the expense.

9. Can a faulty ignition switch cause the B3055 code?

Yes, a faulty ignition switch can prevent the vehicle from properly detecting the key's transponder, leading to the B3055 code.

10. Do I need to take my Silverado to a dealership to fix the B3055 code?

Not necessarily. While dealerships can reprogram keys and troubleshoot immobilizer systems, some independent locksmiths and repair shops can also resolve the issue at a potentially lower cost.

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