AutoCodes – GMC – P0232 2014 GMC Sierra

P0232 2014 GMC Sierra Code - Fuel Pump Control Circuit High 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: P0232 2014 GMC Sierra indicates Fuel Pump Control Circuit High 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.

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Code Popularity 194

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 Jun 02, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0232 2014 GMC Sierra Description

The Engine Control Module (ECM) supplies voltage to the fuel pump driver control module when the ECM detects that the ignition is on. The voltage from the ECM to the fuel pump driver control module remains active for 2 s, unless the engine is in crank or run. While this 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 fuel pump driver control module monitors the fuel pump voltage to determine if the fuel pump is functioning as commanded. The Diagnostic Trouble Code (DTC) will be set if the fuel pump driver control module detects that the fuel pump output circuit voltage is greater than 4.0 V for 1 s when the voltage should be 0 V.

OBDII Code P0232 2014 GMC Sierra - Fuel Pump Control Circuit High Voltage - AutoCodes.com — P0232 2014 GMC Sierra Code - Fuel Pump Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0232 2014 GMC Sierra?

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 P0232 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 P0232 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.

Need more information about the P0232 2014 GMC Sierra code?

Need more information on how to fix the P0232 2014 GMC Sierra code? Get Access to Factory Service Manuals

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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.

Frequently Asked Questions about P0232 2014 GMC Sierra Code

1. What does the OBDII code P0232 mean for a 2014 GMC Sierra?

P0232 indicates that the fuel pump control circuit is experiencing higher-than-expected voltage, which can affect fuel delivery to the engine.

2. What are the common symptoms of the P0232 code?

Symptoms may include engine stalling, difficulty starting, poor fuel economy, or the engine not starting at all.

3. What causes the P0232 code in a 2014 GMC Sierra?

Common causes include a faulty fuel pump relay, damaged wiring or connectors in the fuel pump circuit, or a malfunctioning fuel pump control module.

4. Can a bad fuel pump cause the P0232 code?

Yes, a failing or damaged fuel pump can sometimes cause the circuit to draw excessive voltage, triggering the P0232 code.

5. How do I diagnose the P0232 code?

Diagnosis involves inspecting the fuel pump relay, checking for damaged wiring or loose connections, and testing the voltage and resistance in the fuel pump control circuit.

6. Can I drive my 2014 GMC Sierra with the P0232 code?

Itâ€™s not recommended to drive with the P0232 code, as it can lead to poor performance, stalling, or even a no-start condition.

7. How do you fix the P0232 code on a 2014 GMC Sierra?

Repairs may include replacing the fuel pump relay, repairing or replacing damaged wiring, or replacing the fuel pump control module if necessary.

8. Is the P0232 code related to other fuel system issues?

Yes, it can be related to other fuel system problems, such as a failing fuel pump or issues with the powertrain control module (PCM).

9. How much does it cost to fix the P0232 code?

Repair costs vary but typically range from $100 to $500, depending on whether the issue is with the relay, wiring, or control module.

10. Can a weak battery cause the P0232 code?

While unlikely, a weak or fluctuating power supply could potentially affect the fuel pump circuit and contribute to the code. Always check the battery and charging system during diagnosis.