AutoCodesChevrolet – P100A 2018 Chevrolet Silverado

P100A 2018 Chevrolet Silverado Code - Turbocharger Boost Control Signal Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Turbocharger Boost Control. 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
P100A 2018 Chevrolet Silverado indicates Turbocharger Boost Control Signal Message Counter Incorrect.
Common causes
Common causes include Faulty Turbocharger Boost Control.
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 311
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 19, 2022
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Code P100A 2018 Chevrolet Silverado Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Turbocharger Boost Control Signal Message Counter is Incorrect.
OBDII Code P100A 2018 Chevrolet Silverado - Turbocharger Boost Control Signal Message Counter Incorrect - AutoCodes.com
P100A 2018 Chevrolet Silverado Code - Turbocharger Boost Control Signal Message Counter Incorrect

What are the Possible Causes of the DTC P100A 2018 Chevrolet Silverado?

  • Faulty Turbocharger Boost Control

How to Fix the DTC P100A 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 P100A 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 P100A 2018 Chevrolet Silverado code?

Need more information on how to fix the P100A 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P100A 2018 Chevrolet Silverado Code

1. What does the OBDII code P100A mean on a 2018 Chevrolet Silverado?

P100A indicates that the Turbocharger Boost Control Signal Message Counter is incorrect, which suggests a communication issue between the turbocharger and the engine control module (ECM).

2. What are the symptoms of the P100A code in a 2018 Chevrolet Silverado?

Common symptoms include reduced engine performance, possible turbo lag, poor acceleration, and the illumination of the check engine light.

3. What causes the P100A code to appear?

The code is often caused by a faulty turbocharger control module, wiring issues, damaged connectors, or a malfunction in the ECM.

4. Can a dirty or faulty turbocharger trigger the P100A code?

No, P100A specifically refers to signal communication issues and not the mechanical condition of the turbocharger itself.

5. How do I diagnose the P100A code on a 2018 Chevrolet Silverado?

Start by inspecting the wiring and connectors related to the turbocharger control module, check for software updates for the ECM, and use a scan tool to verify communication signals.

6. Can I drive my 2018 Chevrolet Silverado with the P100A code?

While the vehicle may still be drivable, reduced performance and potential damage to turbo-related components make it advisable to address the issue promptly.

7. How is the P100A code typically repaired?

Repairs may involve replacing or reprogramming the turbocharger control module, repairing damaged wiring, or updating the ECM software.

8. Does the P100A code always require a part replacement?

Not always. Sometimes, the issue can be resolved by fixing wiring or software-related problems without replacing any parts.

9. Do I need specialized tools to fix the P100A code on a Silverado?

Yes, you’ll need an advanced scan tool capable of reading and interpreting turbocharger-related signals and possibly reprogramming the ECM.

10. Can a weak battery or power issue cause the P100A code?

Yes, inconsistent voltage or power supply to the turbocharger control module can cause communication errors, leading to the P100A code.

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