AutoCodes – Chevrolet – P12A6 2018 Chevrolet Silverado

P12A6 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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.

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Code Popularity 1,667

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P12A6 2018 Chevrolet Silverado Description

The Engine Control Module (ECM) provides ignition voltage to the Fuel Pump Driver Control Module whenever the engine is cranking or running. The ECM enables the Fuel Pump Driver Control Module as long as the engine is cranking or running, and ignition system reference pulses are received. While this enables voltage is being received, the Fuel Pump Driver Control Module supplies a varying voltage to the fuel tank fuel pump module in order to maintain the desired fuel line pressure. The Diagnostic Trouble Code (DTC) will be set if the ECM state of the fuel pump enable circuit does not match the state of the fuel pump enable circuit sensed by the fuel pump driver control module for greater than 0.5 s.

OBDII Code P12A6 2018 Chevrolet Silverado - Fuel Pump Driver Control Module Enable Circuit Performance - AutoCodes.com — P12A6 2018 Chevrolet Silverado Code - Fuel Pump Driver Control Module Enable Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P12A6 2018 Chevrolet Silverado?

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 2018 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 P12A6 2018 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 P12A6 2018 Chevrolet Silverado code?

Need more information on how to fix the P12A6 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P12A6 2018 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 P12A6 2018 Chevrolet Silverado Code

1. What are common symptoms of OBDII code P12A6 in a 2018 Chevrolet Silverado?

- Common symptoms include engine stalling, rough idling, decreased fuel efficiency, and difficulty starting the vehicle.

2. What does the OBDII code P12A6 indicate in a 2018 Chevrolet Silverado?

- OBDII code P12A6 indicates an issue with the Fuel Pump Driver Control Module Enable Circuit Performance.

3. What are possible causes of OBDII code P12A6 in a 2018 Chevrolet Silverado?

- Possible causes include a faulty fuel pump driver control module, damaged wiring or connectors, or a malfunctioning fuel pump.

4. How can I diagnose the cause of OBDII code P12A6 in my 2018 Chevrolet Silverado?

- Diagnose by inspecting the wiring and connectors related to the fuel pump driver control module, testing the module itself, and checking the fuel pump's operation.

5. What are the repair options for OBDII code P12A6 in a 2018 Chevrolet Silverado?

- Repair options include replacing the fuel pump driver control module, repairing damaged wiring or connectors, or replacing the fuel pump if necessary.

6. Can OBDII code P12A6 in a 2018 Chevrolet Silverado be safely driven with?

- It is not recommended to drive the vehicle with OBDII code P12A6, as it can lead to further damage and potentially unsafe driving conditions.

7. How much does it typically cost to repair OBDII code P12A6 in a 2018 Chevrolet Silverado?

- Repair costs can vary depending on the specific issue, but replacing the fuel pump driver control module can range from $200 to $500, not including labor.

8. Are there any DIY fixes for OBDII code P12A6 in a 2018 Chevrolet Silverado?

- DIY fixes may include checking and tightening wiring connections, but for more complex issues, it is recommended to consult with a professional mechanic.

9. How urgent is it to address OBDII code P12A6 in a 2018 Chevrolet Silverado?

- It is important to address OBDII code P12A6 promptly to prevent further damage to the vehicle's fuel system and ensure safe and reliable operation.

10. Can resetting the OBDII system clear OBDII code P12A6 in a 2018 Chevrolet Silverado?

- Resetting the OBDII system may temporarily clear the code, but it will likely reappear if the underlying issue causing OBDII code P12A6 is not addressed.