AutoCodes – GMC – P2322 2015 GMC Sierra

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

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 8, Ignition Coil 8 harness is open or shorted, Ignition Coil 8 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: P2322 2015 GMC Sierra indicates Ignition Coil 8 Control Circuit High Voltage.
Common causes: Common causes include Faulty Ignition Coil 8, Ignition Coil 8 harness is open or shorted, Ignition Coil 8 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 242

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2322 2015 GMC Sierra Description

The ignition system on this engine uses ignition coils with integrated power transistors. The Engine Control Module (ECM) controls the spark event for each cylinder through individual ignition coil control circuits. When the ECM commands the ignition control circuit On, electrical current flows through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM commands the ignition control circuit Off, interrupting current flow through the primary winding. The collapsing magnetic field created by the primary winding induces a high voltage in the secondary winding, which is connected to the spark plugs. The Diagnostic Trouble Code (DTC) will be set when the control circuit commanded by the ECM state does not match the actual state.

OBDII Code P2322 2015 GMC Sierra - Ignition Coil 8 Control Circuit High Voltage - AutoCodes.com — P2322 2015 GMC Sierra Code - Ignition Coil 8 Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2322 2015 GMC Sierra?

Faulty Ignition Coil 8
Ignition Coil 8 harness is open or shorted
Ignition Coil 8 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2322 2015 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 P2322 2015 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 P2322 2015 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 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.