P064A 2018 GMC Sierra Code - Fuel Pump Control Module Performance
Quick Answer
The Engine Control Module (ECM) supplies voltage to the fuel pump control module when the ECM detects that the ignition is on. Common causes include Faulty Fuel Pump Control Module, Fuel Pump Control Module harness is open or shorted, Fuel Pump 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
- P064A 2018 GMC Sierra indicates Fuel Pump Control Module Performance.
- Common causes
- Common causes include Faulty Fuel Pump Control Module, Fuel Pump Control Module harness is open or shorted, Fuel Pump 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 P064A 2018 GMC Sierra Description
What are the Possible Causes of the DTC P064A 2018 GMC Sierra?
- Faulty Fuel Pump Control Module
- Fuel Pump Control Module harness is open or shorted
- Fuel Pump Control Module circuit poor electrical connection
How to Fix the DTC P064A 2018 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 P064A 2018 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.
Need more information about the P064A 2018 GMC Sierra code?
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Frequently Asked Questions about P064A 2018 GMC Sierra Code
1. What does the OBDII code P064A mean on a 2018 GMC Sierra?
P064A indicates a performance issue with the Fuel Pump Control Module (FPCM), which manages the fuel pump's operation and communication with the engine control module (ECM).
2. What are the common symptoms of code P064A in a 2018 GMC Sierra?
Symptoms may include difficulty starting the engine, poor fuel efficiency, engine stalling, reduced performance, or an illuminated check engine light.
3. What causes the P064A code to appear on a GMC Sierra?
Common causes include a faulty fuel pump control module, damaged wiring or connectors, a software issue in the FPCM, or a problem with the ECM.
4. Can I drive my GMC Sierra with a P064A code?
Driving with this code is not recommended, as it may lead to poor engine performance, stalling, or damage to other components if the fuel pump cannot operate correctly.
5. How is the P064A code diagnosed?
A mechanic will use a scan tool to confirm the code, inspect the FPCM wiring and connectors for damage, check for proper voltage signals, and possibly test the fuel pump's performance.
6. How do you fix the P064A error code in a 2018 GMC Sierra?
Repairs may involve replacing the faulty fuel pump control module, repairing damaged wiring or connectors, or updating FPCM software if necessary.
7. How much does it cost to fix a P064A code on a GMC Sierra?
The repair cost can range from $150 to $700, depending on whether the module needs replacement or if simpler wiring repairs are sufficient.
8. Can a software update fix the P064A code in my GMC Sierra?
In some cases, a software update for the FPCM or ECM may resolve the issue if the code is caused by a programming error.
9. What tools are required to diagnose the P064A code?
Diagnostic tools include an OBDII scanner, a digital multimeter to check electrical signals, and service manuals for proper wiring diagrams.
10. Is the P064A code a common issue for a 2018 GMC Sierra?
While not extremely common, it can occur due to wear and tear on electrical components or software bugs in the fuel pump control system.
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