P12A6 2014 GMC Sierra Code - Fuel Pump Driver Control Module Enable Circuit Performance
Quick Answer
The Engine Control Module (ECM) provides ignition voltage to the Fuel Pump Driver Control Module whenever the engine is cranking or running. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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
- P12A6 2014 GMC Sierra indicates Fuel Pump Driver Control Module Enable Circuit Performance.
- Common causes
- Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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.
Code P12A6 2014 GMC Sierra Description
What are the Possible Causes of the DTC P12A6 2014 GMC Sierra?
- Faulty Fuel Pump Driver Control Module
- Fuel Pump Driver Control Module harness is open or shorted
- Fuel Pump Driver Control Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P12A6 2014 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 P12A6 2014 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.
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Frequently Asked Questions about P12A6 2014 GMC Sierra Code
1. What does the OBDII code P12A6 mean on a 2014 GMC Sierra?
P12A6 indicates an issue with the Fuel Pump Driver Control Module Enable Circuit, where its performance is outside the expected range.
2. What are the common symptoms of the P12A6 code on a 2014 GMC Sierra?
Symptoms may include difficulty starting the engine, reduced engine performance, stalling, or an illuminated check engine light.
3. What causes the P12A6 code to appear on a 2014 GMC Sierra?
Common causes include a faulty fuel pump driver control module, damaged wiring or connectors in the circuit, or a malfunctioning ECM (Engine Control Module).
4. Is it safe to drive a 2014 GMC Sierra with the P12A6 code?
Driving with this code is not recommended, as it may lead to engine performance issues or cause the vehicle to stall unexpectedly.
5. How do you diagnose the P12A6 code on a 2014 GMC Sierra?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the fuel pump driver control module, checking for damaged wires or connectors, and testing the module's voltage and ground.
6. Can a bad fuel pump cause the P12A6 code on a 2014 GMC Sierra?
While the fuel pump itself is not the direct cause, its control module or related circuits can trigger this code if they malfunction.
7. How do you fix the P12A6 code on a 2014 GMC Sierra?
Typical repairs include replacing the fuel pump driver control module, repairing or replacing damaged wiring or connectors, or updating/reprogramming the ECM if necessary.
8. How much does it cost to repair the P12A6 code on a 2014 GMC Sierra?
Repair costs vary, but replacing the fuel pump driver control module typically costs $200–$500, depending on parts and labor.
9. Can a dead battery cause the P12A6 code on a 2014 GMC Sierra?
A low or dead battery is unlikely to cause this code directly but may contribute to electrical issues that affect the fuel pump driver control module.
10. Does the P12A6 code require reprogramming the ECM on a 2014 GMC Sierra?
In some cases, updating or reprogramming the ECM may be necessary if the issue is related to a software glitch rather than a hardware fault.
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