AutoCodes – GMC – P2322 2018 GMC Sierra

P2322 2018 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 2018 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 331

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 2018 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 2018 GMC Sierra - Ignition Coil 8 Control Circuit High Voltage - AutoCodes.com — P2322 2018 GMC Sierra Code - Ignition Coil 8 Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2322 2018 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 2018 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 2018 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 2018 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 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P2322 in a 2018 GMC Sierra related to Ignition Coil 8 Control Circuit High Voltage?

- Common symptoms include rough engine performance, misfires, loss of power, and illuminated Check Engine light.

2. What are the potential causes of OBDII code P2322 in a 2018 GMC Sierra?

- Causes can include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the Engine Control Module (ECM).

3. How can I diagnose the issue causing OBDII code P2322 in my 2018 GMC Sierra?

- Diagnose by visually inspecting the ignition coil and its connections, testing the coil's resistance, checking for damaged wires or connectors, and using a scan tool to monitor the ignition system.

4. Can I continue to drive my 2018 GMC Sierra with OBDII code P2322 present?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the engine and emissions components.

5. What are the repair options for fixing OBDII code P2322 in a 2018 GMC Sierra?

- Repair options include replacing the faulty ignition coil, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

6. How much does it typically cost to repair OBDII code P2322 in a 2018 GMC Sierra?

- Costs can vary depending on the specific issue, but replacing an ignition coil can range from $100 to $300, while more extensive repairs involving wiring or the ECM may cost more.

7. Are there any preventive maintenance tips to avoid OBDII code P2322 in a 2018 GMC Sierra?

- Regularly inspecting and maintaining the ignition system components, such as the ignition coil and related wiring, can help prevent issues that may trigger this code.

8. Can a DIY enthusiast with basic mechanical skills repair OBDII code P2322 in a 2018 GMC Sierra?

- Depending on the specific issue, some DIY repairs may be possible, such as replacing the ignition coil. However, more complex issues may require professional diagnosis and repair.

9. Will resetting the Check Engine light clear OBDII code P2322 in a 2018 GMC Sierra?

- Resetting the light may temporarily clear the code, but it will return if the underlying issue causing it is not addressed.

10. How can I ensure that OBDII code P2322 is properly diagnosed and repaired in my 2018 GMC Sierra?

- To ensure proper diagnosis and repair, it is recommended to consult a qualified mechanic or dealership with experience working on GMC vehicles and diagnosing ignition system issues.