Engine-CodesGMC – P12A6 2016 GMC Sierra

P12A6 2016 GMC Sierra Code - Fuel Pump Driver Control Module Enable Circuit Performance

Quick Answer

The diagnostic trouble code P12A6 for a 2016 GMC Sierra relates to the Fuel Pump Driver Control Module Enable Circuit Performance. Common causes include Faulty fuel pump driver control module, Wiring or connection issues, Electrical faults in the circuit. 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 2016 GMC Sierra indicates Fuel Pump Driver Control Module Enable Circuit Performance.
Common causes
Common causes include Faulty fuel pump driver control module, Wiring or connection issues, Electrical faults in the circuit.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P12A6 2016 GMC Sierra Description

The diagnostic trouble code P12A6 for a 2016 GMC Sierra relates to the Fuel Pump Driver Control Module Enable Circuit Performance. This code indicates that the control module responsible for regulating the fuel pump driver circuit is not performing as expected. The fuel pump driver control module plays a crucial role in controlling the fuel pump's operation, ensuring that the correct amount of fuel is delivered to the engine at all times.

OBDII Code P12A6 2016 GMC Sierra - Fuel Pump Driver Control Module Enable Circuit Performance
P12A6 2016 GMC Sierra Code - Fuel Pump Driver Control Module Enable Circuit Performance

Common Causes of P12A6 2016 GMC Sierra

  1. Faulty fuel pump driver control module
  2. Wiring or connection issues
  3. Electrical faults in the circuit
  4. Corrosion or damage to the control module
  5. Issues with the fuel pump itself

Symptoms of P12A6 2016 GMC Sierra

  1. Engine misfires or hesitation during acceleration
  2. Rough idling or stalling
  3. Reduced fuel efficiency
  4. Difficulty starting the engine
  5. Engine performance issues under load

How to Fix P12A6 2016 GMC Sierra

  1. Diagnose the issue by performing a comprehensive inspection of the fuel pump driver control module, wiring, and connections.
  2. Test the fuel pump driver control module using a multimeter to determine if it is functioning correctly.
  3. Check for any loose or damaged wiring connections and repair or replace them as needed.
  4. If the control module is found to be faulty, replace it with a new or refurbished unit.
  5. Clear the diagnostic trouble codes, reset the system, and test the vehicle to ensure that the issue has been resolved.

Cost to Fix P12A6 2016 GMC Sierra

The cost of repairing the Fuel Pump Driver Control Module Enable Circuit Performance issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary significantly, so it's best to get a quote from a trusted mechanic before proceeding with the repairs.

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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.

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