AutoCodes – GMC – P00CA 2014 GMC Sierra

P00CA 2014 GMC Sierra Code - Fuel Pressure Regulator High Control Circuit High Voltage

Quick Answer

High-pressure fuel is regulated by the high-pressure fuel pump actuator, which is a part of the high-pressure fuel pump. Common causes include Faulty High-Pressure Fuel Pump, High-Pressure Fuel Pump harness is open or shorted, High-Pressure Fuel Pump electrical circuit poor 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: P00CA 2014 GMC Sierra indicates Fuel Pressure Regulator High Control Circuit High Voltage.
Common causes: Common causes include Faulty High-Pressure Fuel Pump, High-Pressure Fuel Pump harness is open or shorted, High-Pressure Fuel Pump electrical circuit poor 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 238

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 May 16, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P00CA 2014 GMC Sierra Description

High-pressure fuel is regulated by the high-pressure fuel pump actuator, which is a part of the high-pressure fuel pump. The high-pressure fuel pump actuator is a solenoid valve. The Engine Control Module (ECM) provides battery voltage on the actuator high control circuit and ground on the actuator low control circuit. Both circuits are controlled through output drivers within the ECM. When deactivated, both drivers are disabled. When activated, the high control circuit driver energizes the high-pressure fuel pump actuator, and the low control circuit driver Pulse-Width Modulates (PWM) the low control circuit to the ground. The ECM monitors the voltage on the circuits to detect a failure. The Diagnostic Trouble Code (DTC) will set if the ECM detects a short to voltage in the high-pressure fuel pump actuator high control circuit.

OBDII Code P00CA 2014 GMC Sierra - Fuel Pressure Regulator High Control Circuit High Voltage - AutoCodes.com — P00CA 2014 GMC Sierra Code - Fuel Pressure Regulator High Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P00CA 2014 GMC Sierra?

Faulty High-Pressure Fuel Pump
High-Pressure Fuel Pump harness is open or shorted
High-Pressure Fuel Pump electrical circuit poor connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P00CA 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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P00CA 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 P00CA 2014 GMC Sierra code?

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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 P00CA 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P00CA in a 2014 GMC Sierra?

- Common symptoms include poor engine performance, rough idling, reduced fuel efficiency, and potential stalling.

2. What does the OBDII code P00CA indicate in a 2014 GMC Sierra?

- The code P00CA indicates a high voltage condition in the fuel pressure regulator control circuit.

3. What are the possible causes of OBDII code P00CA in a 2014 GMC Sierra?

- Possible causes include a faulty fuel pressure regulator, damaged wiring or connectors in the control circuit, or a problem with the engine control module.

4. How can I diagnose the OBDII code P00CA in my 2014 GMC Sierra?

- Diagnosing code P00CA may involve checking the fuel pressure regulator, inspecting the wiring and connectors for damage, and using a diagnostic scanner to analyze the control circuit voltage.

5. Can I continue driving my 2014 GMC Sierra with OBDII code P00CA?

- It is not recommended to continue driving with code P00CA, as it can lead to further engine damage and potential safety issues. It is best to address the underlying issue promptly.

6. How can I repair OBDII code P00CA in my 2014 GMC Sierra?

- Repair options may include replacing the fuel pressure regulator, repairing or replacing damaged wiring/connectors, or reprogramming the engine control module if necessary.

7. Are there any DIY tips for resolving OBDII code P00CA in a 2014 GMC Sierra?

- While some basic troubleshooting like checking connections and inspecting for visible damage can be done, it is recommended to seek professional help for proper diagnosis and repair.

8. Will resetting the OBDII code P00CA in my 2014 GMC Sierra make it go away permanently?

- Simply resetting the code may temporarily clear the warning, but if the underlying issue is not addressed, the code is likely to reappear after driving cycles.

9. How much does it cost to fix OBDII code P00CA in a 2014 GMC Sierra?

- The cost of fixing code P00CA can vary depending on the root cause, parts needed, and labor costs. It is advisable to get a diagnostic assessment from a trusted mechanic for an accurate estimate.

10. Is it safe to clear the OBDII code P00CA and ignore it in my 2014 GMC Sierra?

- Ignoring code P00CA can lead to potential engine performance issues and may cause further damage over time. It is recommended to address the problem to ensure the vehicle runs smoothly and efficiently.