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Engine-Codes – GMC – P2322 2015 GMC Sierra

P2322 2015 GMC Sierra Code - Ignition Coil 8 Control Circuit High Voltage

Quick Answer

The diagnostic trouble code P2322 for a 2015 GMC Sierra indicates a problem with the ignition coil 8 control circuit experiencing high voltage. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Engine control module (ECM) malfunction. 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
P2322 2015 GMC Sierra indicates Ignition Coil 8 Control Circuit High Voltage.
Common causes
Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Engine control module (ECM) malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P2322 2015 GMC Sierra Description

The diagnostic trouble code P2322 for a 2015 GMC Sierra indicates a problem with the ignition coil 8 control circuit experiencing high voltage. The ignition coil is a crucial component of the ignition system that converts the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine's cylinders. When the control circuit for ignition coil 8 registers high voltage, it can lead to various issues with the vehicle's performance.

OBDII Code P2322 2015 GMC Sierra - Ignition Coil 8 Control Circuit High Voltage
P2322 2015 GMC Sierra Code - Ignition Coil 8 Control Circuit High Voltage

Common Causes of P2322 2015 GMC Sierra

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the ignition coil circuit
  3. Engine control module (ECM) malfunction
  4. Electrical issues such as short circuits or corrosion
  5. Extreme weather conditions affecting the ignition system

Symptoms of P2322 2015 GMC Sierra

  1. Engine misfires
  2. Rough idling
  3. Poor acceleration
  4. Stalling
  5. Decreased fuel efficiency

How to Fix P2322 2015 GMC Sierra

  1. Begin by diagnosing the specific cause of the high voltage in ignition coil 8 control circuit using a diagnostic scanner.
  2. Inspect the ignition coil, wiring, and connectors for any visible damage or wear.
  3. Test the ignition coil's resistance and check for proper voltage output.
  4. Replace the faulty ignition coil, repair any damaged wiring or connectors, and reset the ECM if necessary.
  5. Clear the diagnostic trouble code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2322 2015 GMC Sierra

The typical repair costs for addressing the ignition coil 8 control circuit high voltage issue can range from $150 to $400, depending on the specific cause of the problem and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and engine type can also influence the overall repair costs. It is recommended to obtain quotes from local auto repair shops for a more accurate estimate.

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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 P2322 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code P2322 in a 2015 GMC Sierra?

The common symptoms of code P2322 include rough idling, engine misfires, loss of power, and illuminated Check Engine Light.

2. What does the OBDII code P2322 on a 2015 GMC Sierra indicate?

Code P2322 indicates a problem with the ignition coil 8 control circuit having high voltage in the 2015 GMC Sierra.

3. What are the possible causes of OBDII code P2322 in a 2015 GMC Sierra?

Possible causes of code P2322 include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the OBDII code P2322 on my 2015 GMC Sierra?

Diagnosing code P2322 involves checking the ignition coil 8 for proper operation, inspecting the wiring and connectors for any damage, and testing the ECM for faults using a scan tool.

5. Can driving with OBDII code P2322 in a 2015 GMC Sierra cause further damage?

Continuing to drive with code P2322 can potentially lead to more severe engine problems, such as catalytic converter damage or permanent engine misfires.

6. How can I repair OBDII code P2322 on my 2015 GMC Sierra?

Repairing code P2322 may involve replacing the faulty ignition coil 8, repairing or replacing damaged wiring or connectors, or reprogramming the ECM to resolve the high voltage issue.

7. Is it safe to clear the OBDII code P2322 on a 2015 GMC Sierra without fixing the issue?

Clearing the code without addressing the underlying problem can temporarily turn off the Check Engine Light, but the issue will likely resurface, potentially causing more significant damage over time.

8. Can a DIY enthusiast fix OBDII code P2322 on a 2015 GMC Sierra?

While some experienced DIY enthusiasts may be able to diagnose and repair code P2322, it is recommended to seek professional help, especially when dealing with electrical components like ignition coils.

9. How much does it cost to fix OBDII code P2322 on a 2015 GMC Sierra at a repair shop?

The cost of fixing code P2322 can vary depending on the exact cause of the issue, but it may range from $150 to $400 at a repair shop, including parts and labor.

10. How long does it take to repair OBDII code P2322 on a 2015 GMC Sierra?

The repair time for code P2322 can vary based on the extent of the issue and the availability of parts, but a professional mechanic typically takes 1 to 2 hours to diagnose and fix the problem.

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