AutoCodesGMC – P30BC 2016 GMC Sierra

P30BC 2016 GMC Sierra Code - Particulate Matter Sensor Control Module Status 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 Particulate Matter Sensor Control Module, Particulate Matter Sensor Control Module harness is open or shorted, Particulate Matter Sensor Control Module circuit poor electrical connection. 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
P30BC 2016 GMC Sierra indicates Particulate Matter Sensor Control Module Status Signal Message Counter Incorrect.
Common causes
Common causes include Faulty Particulate Matter Sensor Control Module, Particulate Matter Sensor Control Module harness is open or shorted, Particulate Matter Sensor Control Module circuit poor electrical connection.
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 179
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 29, 2022
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Code P30BC 2016 GMC Sierra 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 Particulate Matter Sensor Control Module Status Signal Message Counter is Incorrect.
OBDII Code P30BC 2016 GMC Sierra - Particulate Matter Sensor Control Module Status Signal Message Counter Incorrect - AutoCodes.com
P30BC 2016 GMC Sierra Code - Particulate Matter Sensor Control Module Status Signal Message Counter Incorrect

What are the Possible Causes of the DTC P30BC 2016 GMC Sierra?

  • Faulty Particulate Matter Sensor Control Module
  • Particulate Matter Sensor Control Module harness is open or shorted
  • Particulate Matter Sensor Control Module circuit poor electrical connection

How to Fix the DTC P30BC 2016 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 P30BC 2016 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 P30BC 2016 GMC Sierra code?

Need more information on how to fix the P30BC 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P30BC 2016 GMC Sierra 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 P30BC 2016 GMC Sierra Code

1. What does OBDII code P30BC mean on a 2016 GMC Sierra?

P30BC indicates an issue with the Particulate Matter Sensor Control Module, specifically that the status signal message counter is incorrect or not functioning as expected.

2. What are the common symptoms of code P30BC on a 2016 GMC Sierra?

Symptoms may include the check engine light turning on, poor fuel efficiency, reduced engine performance, or issues with the diesel particulate filter (DPF) system.

3. What causes the P30BC code in a 2016 GMC Sierra?

Common causes include a faulty particulate matter sensor, damaged wiring or connectors, software glitches in the control module, or communication issues between the sensor and the engine control module (ECM).

4. How is code P30BC diagnosed on a 2016 GMC Sierra?

A mechanic will use a scan tool to confirm the code, inspect the wiring and connectors for damage, test the particulate matter sensor, and check for software updates or communication errors in the control module.

5. Can I drive my 2016 GMC Sierra with a P30BC code?

It’s not recommended to drive for long periods with this code active, as it could lead to reduced performance, further damage to the DPF system, or increased emissions.

6. How do you fix the P30BC code on a 2016 GMC Sierra?

Repairs may involve replacing the particulate matter sensor, repairing damaged wiring or connectors, updating the control module software, or in rare cases, replacing the control module.

7. Does the P30BC code always mean the particulate matter sensor is bad?

No, the issue could also stem from wiring problems, software issues, or a fault in the control module rather than the sensor itself.

8. How much does it cost to fix the P30BC code on a 2016 GMC Sierra?

Repair costs vary but can range from $150 to $800 depending on whether the sensor, wiring, or control module needs to be replaced or repaired.

9. Can a software update resolve the P30BC code on a 2016 GMC Sierra?

Yes, in some cases, a software update for the Particulate Matter Sensor Control Module can fix the issue if the problem is related to a programming glitch.

10. How can I prevent the P30BC code from recurring on my 2016 GMC Sierra?

Regular maintenance, ensuring proper functioning of the DPF system, and addressing wiring or software issues promptly can help prevent this code from reoccurring.

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