P12A8 2015 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 2015 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.
Code P12A8 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P12A8 2015 Chevrolet Silverado?
- Faulty Fuel Pump
- Fuel Pump harness is open or shorted
- Fuel Pump circuit poor electrical connection
How to Fix the DTC P12A8 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 P12A8 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 P12A8 2015 Chevrolet Silverado code?
Need more information on how to fix the P12A8 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P12A8 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P12A8 2015 Chevrolet Silverado Code
1. What does the OBDII code P12A8 mean on a 2015 Chevrolet Silverado?
P12A8 indicates an issue with the fuel pump control module (FPCM) where the status signal message counter is incorrect, often pointing to a communication or control problem.
2. What are the symptoms of code P12A8 on a 2015 Chevrolet Silverado?
Symptoms may include rough idling, engine stalling, poor acceleration, difficulty starting, or the vehicle going into limp mode.
3. What causes the P12A8 code to appear?
Common causes include a faulty fuel pump control module, damaged wiring or connections, software glitches, or communication issues between the FPCM and the engine control module (ECM).
4. Can a bad fuel pump cause the P12A8 code?
While the code specifically relates to the fuel pump control module, a failing fuel pump could indirectly contribute to the issue, especially if it creates erratic signals.
5. How do I diagnose the P12A8 code on my Silverado?
Diagnosis typically involves using a scan tool to verify the code, inspecting the wiring and connectors to the FPCM for damage, and testing the module for proper functionality.
6. Is the P12A8 code serious, and can I keep driving?
This code can lead to performance issues and potential stalling, so it’s not advisable to keep driving the vehicle without addressing the problem.
7. How do I fix the P12A8 code on a 2015 Chevrolet Silverado?
Repairs may include replacing the fuel pump control module, repairing damaged wiring, or updating the module’s software if a programming issue is identified.
8. Does clearing the code fix the P12A8 issue permanently?
Clearing the code may temporarily remove the warning, but the underlying problem must be fixed to prevent the code from returning.
9. Is the P12A8 code covered under warranty for a 2015 Silverado?
It depends on your vehicle’s warranty coverage, but emissions-related components like the fuel pump control module may be covered under certain extended warranties.
10. Can a weak battery cause the P12A8 code?
Yes, a weak or failing battery can cause communication errors between the FPCM and ECM, potentially triggering the P12A8 code.
Discuss the causes and fixes for P12A8 2015 Chevrolet Silverado OBDII Code
Code P12A8 2015 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
