AutoCodes – Chevrolet – B3055 2018 Chevrolet Silverado

B3055 2018 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 2018 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.

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Code Popularity 284

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 2018 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 2018 Chevrolet Silverado - No Transponder Modulation or No Transponder - AutoCodes.com — B3055 2018 Chevrolet Silverado Code - No Transponder Modulation or No Transponder

What does this mean?

What are the Possible Causes of the DTC B3055 2018 Chevrolet Silverado?

Faulty Key
Faulty Immobilizer Control Module

How to Fix the DTC B3055 2018 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 2018 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 2018 Chevrolet Silverado code?

Need more information on how to fix the B3055 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code

1. What does the OBDII code B3055 mean on a 2018 Chevrolet Silverado?

B3055 indicates a "No Transponder Modulation" or "No Transponder," meaning the vehicle's immobilizer system is not detecting a valid transponder signal from the key.

2. What are the common symptoms of the B3055 code in a 2018 Chevrolet Silverado?

Symptoms include the engine not starting, the security light staying on, or a "No Key Detected" message on the dashboard.

3. What causes the B3055 code to appear?

Common causes include a defective transponder key, a weak key fob battery, interference from other devices, or a malfunctioning theft deterrent module.

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

Yes, a dead or weak key fob battery can prevent the transponder signal from being transmitted, triggering the code.

5. How can I fix the B3055 code on my 2018 Chevrolet Silverado?

Start by replacing the key fob battery. If the issue persists, try using a spare key or have the key reprogrammed. If necessary, inspect the theft deterrent system for faults.

6. Can the B3055 code be cleared without repairs?

The code can be cleared with an OBDII scanner, but it will likely return if the underlying issue isnâ€™t addressed.

7. Is it safe to drive with the B3055 code?

No, the vehicle may not start due to the immobilizer system failing to recognize the key, leaving you stranded.

8. How much does it cost to fix the B3055 code?

Costs vary depending on the issue. A key fob battery replacement is inexpensive, but reprogramming a key or repairing the theft deterrent module can cost $100-$500 or more.

9. Can interference from electronics cause the B3055 code?

Yes, electronic devices or metal objects near the key fob can interfere with the transponder signal and trigger the code.

10. Do I need to go to the dealership to fix the B3055 code?

Not necessarily. A locksmith or qualified mechanic with the proper tools can often diagnose and repair the issue, but dealership support may be required for module replacements or specialized programming.