AutoCodes – Chevrolet – P12A8 2016 Chevrolet Silverado

P12A8 2016 Chevrolet Silverado Code - Fuel Pump Control 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 Fuel Pump, Fuel Pump harness is open or shorted, Fuel Pump 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: P12A8 2016 Chevrolet Silverado indicates Fuel Pump Control Status Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Fuel Pump, Fuel Pump harness is open or shorted, Fuel Pump 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 455

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 27, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P12A8 2016 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 Fuel Pump Control Status Signal Message Counter is Incorrect.

OBDII Code P12A8 2016 Chevrolet Silverado - Fuel Pump Control Status Signal Message Counter Incorrect - AutoCodes.com — P12A8 2016 Chevrolet Silverado Code - Fuel Pump Control Status Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P12A8 2016 Chevrolet Silverado?

Faulty Fuel Pump
Fuel Pump harness is open or shorted
Fuel Pump circuit poor electrical connection

How to Fix the DTC P12A8 2016 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 P12A8 2016 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 P12A8 2016 Chevrolet Silverado code?

Need more information on how to fix the P12A8 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P12A8 2016 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 P12A8 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P12A8 in a 2016 Chevrolet Silverado?

- Common symptoms include poor engine performance, reduced fuel efficiency, and potential stalling or hesitation while driving.

2. What does the OBDII code P12A8 indicate in a 2016 Chevrolet Silverado?

- The code P12A8 indicates that the Fuel Pump Control Status Signal Message Counter is reporting an incorrect value.

3. What are the possible causes of OBDII code P12A8 in a 2016 Chevrolet Silverado?

- Possible causes include a faulty fuel pump, issues with the fuel pump control module, wiring problems, or a communication error within the vehicle's system.

4. How can I diagnose the OBDII code P12A8 in my 2016 Chevrolet Silverado?

- Diagnosis typically involves checking the fuel pump operation, inspecting the wiring for any damage, and using a diagnostic scanner to analyze the fuel pump control module.

5. Can I still drive my 2016 Chevrolet Silverado with the OBDII code P12A8 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety hazards.

6. How urgent is it to address the OBDII code P12A8 in a 2016 Chevrolet Silverado?

- It is essential to address this code promptly to prevent potential fuel system issues and ensure the vehicle operates safely and efficiently.

7. What are some repair tips for fixing OBDII code P12A8 in a 2016 Chevrolet Silverado?

- Repair tips may include checking and replacing the fuel pump, inspecting the wiring connections, and resetting the code to see if it reoccurs.

8. Can I reset the OBDII code P12A8 in my 2016 Chevrolet Silverado by disconnecting the battery?

- While disconnecting the battery may reset the code temporarily, it is crucial to diagnose and repair the underlying issue to prevent the code from reappearing.

9. Is it advisable to attempt DIY repairs for OBDII code P12A8 in a 2016 Chevrolet Silverado?

- Depending on your automotive knowledge and skills, you may be able to address simple causes like loose connections, but complex issues may require professional diagnosis and repair.

10. How much does it typically cost to fix OBDII code P12A8 in a 2016 Chevrolet Silverado?

- The cost of fixing this code can vary based on the specific cause, but it may range from a few hundred to over a thousand dollars, including parts and labor.