P0231 2014 Chevrolet Silverado Code - Fuel Pump Control Circuit Low Voltage
Quick Answer
The Engine Control Module (ECM) supplies voltage to the fuel pump driver control module when the ECM detects that the ignition is on. 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
- P0231 2014 Chevrolet Silverado indicates Fuel Pump Control Circuit Low Voltage.
- 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 P0231 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0231 2014 Chevrolet Silverado?
- Faulty Fuel Pump
- Fuel Pump harness is open or shorted
- Fuel Pump circuit poor electrical connection
- Faulty Fuel Pump Driver Control Module
How to Fix the DTC P0231 2014 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 P0231 2014 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.
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Frequently Asked Questions about P0231 2014 Chevrolet Silverado Code
1. What does the OBDII code P0231 mean on a 2014 Chevrolet Silverado?
The P0231 code indicates a "Fuel Pump Control Circuit Low Voltage," meaning the power supply to the fuel pump control circuit is lower than expected.
2. What are the common symptoms of the P0231 code?
Symptoms may include the engine stalling, difficulty starting, reduced fuel efficiency, or the vehicle not starting at all.
3. What causes the P0231 code to appear on a 2014 Chevrolet Silverado?
Possible causes include a faulty fuel pump relay, damaged wiring or connectors in the fuel pump circuit, a failing fuel pump, or issues with the powertrain control module (PCM).
4. Can a bad fuel pump trigger the P0231 code?
Yes, a failing or damaged fuel pump can cause low voltage in the fuel pump control circuit, triggering the P0231 code.
5. How do I diagnose the P0231 code on my Silverado?
Start by checking the fuel pump relay, inspecting wiring and connectors for damage or corrosion, and testing the fuel pump for proper operation. Use a multimeter to measure voltage in the circuit.
6. Is the P0231 code serious?
Yes, it is serious because it can lead to engine performance issues or prevent the vehicle from starting. Address it promptly to avoid further complications.
7. How can I fix the P0231 code on my 2014 Silverado?
Repairs may involve replacing a faulty fuel pump relay, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the fuel pump if necessary.
8. Can I drive my Silverado with the P0231 code?
Driving with the P0231 code is risky, as it can cause stalling or prevent the truck from starting. It’s best to resolve the issue as soon as possible.
9. Could a bad PCM cause the P0231 code?
While rare, a malfunctioning PCM can cause the P0231 code if it fails to properly regulate the fuel pump control circuit.
10. What tools are needed to troubleshoot the P0231 code?
You’ll need an OBDII scanner, a multimeter, and basic tools for inspecting and replacing relays, wiring, and connectors.
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