AutoCodes – Chevrolet – P2322 2018 Chevrolet Silverado

P2322 2018 Chevrolet Silverado 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 Chevrolet Silverado 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 630

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 Chevrolet Silverado 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 Chevrolet Silverado - Ignition Coil 8 Control Circuit High Voltage - AutoCodes.com — P2322 2018 Chevrolet Silverado Code - Ignition Coil 8 Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2322 2018 Chevrolet Silverado?

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 Chevrolet Silverado?

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 Chevrolet Silverado 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 Chevrolet Silverado code?

Need more information on how to fix the P2322 2018 Chevrolet Silverado 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 P2322 2018 Chevrolet Silverado Code

1. What does OBDII code P2322 mean on a 2018 Chevrolet Silverado?

P2322 indicates that the Powertrain Control Module (PCM) has detected a high voltage condition in the ignition coil 8 control circuit.

2. What are the common symptoms of code P2322 in a 2018 Silverado?

Symptoms may include engine misfires, rough idling, reduced engine performance, difficulty starting, and an illuminated Check Engine Light.

3. What causes the P2322 code on a 2018 Chevrolet Silverado?

Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a defective spark plug, or a malfunctioning PCM.

4. How can I troubleshoot the P2322 code on my Silverado?

Start by inspecting the wiring and connectors for damage or corrosion, testing the ignition coil for proper resistance, and checking the spark plug for wear or damage.

5. Can I drive my Silverado with the P2322 code?

Itâ€™s not recommended to drive with this code active, as it can lead to engine misfires and damage to the catalytic converter if left unresolved.

6. How do I fix the P2322 code on a 2018 Chevrolet Silverado?

Repairs may include replacing the ignition coil for cylinder 8, repairing or replacing damaged wiring, replacing faulty spark plugs, or reprogramming or replacing the PCM if necessary.

7. How much does it cost to repair a P2322 code on a Silverado?

Repair costs can vary but typically range from $150 to $400, depending on whether the ignition coil, wiring, or PCM requires replacement.

8. Can a bad spark plug cause the P2322 code?

Yes, a bad spark plug can cause excessive resistance in the circuit, leading to high voltage and triggering the P2322 code.

9. How do I know if the ignition coil for cylinder 8 is faulty?

You can test the ignition coil using a multimeter to check the primary and secondary resistance values. If they are outside the manufacturerâ€™s specifications, the coil is likely faulty.

10. Will clearing the P2322 code fix the issue?

Clearing the code will turn off the Check Engine Light temporarily, but the issue will persist unless the underlying problem is addressed.