AutoCodes – Dodge – P2320 Dodge

P2320 Dodge Code - Ignition Coil 'G' Secondary Circuit

Quick Answer

The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. Common causes include Faulty Ignition Coil 'G', Ignition Coil 'G' harness is open or shorted, Ignition Coil 'G' 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: P2320 Dodge indicates Ignition Coil 'G' Secondary Circuit.
Common causes: Common causes include Faulty Ignition Coil 'G', Ignition Coil 'G' harness is open or shorted, Ignition Coil 'G' 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 22,397

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2320 Dodge Description

The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. When the ignition coil driver is switched on, current rapidly builds up to a maximum value, determined by the coil inductance and resistance. When the current is switched off, the magnetic field collapses which induces a secondary high voltage surge and the spark plug is fired. This high voltage surge creates a flyback voltage which the PCM uses as a feedback during the ignition diagnostics. The PCM continuously monitors the ignition system for concerns. The P2320 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2320 Dodge - Ignition Coil 'G' Secondary Circuit - AutoCodes.com — P2320 Dodge Code - Ignition Coil 'G' Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P2320 Dodge?

Faulty Ignition Coil 'G'
Ignition Coil 'G' harness is open or shorted
Ignition Coil 'G' circuit poor electrical connection

How to Fix the DTC P2320 Dodge?

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 P2320 Dodge 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.

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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 P2320 Dodge Code

1. What does the OBDII code P2320 mean on a Dodge vehicle?

P2320 indicates an issue with the Ignition Coil 'G' Secondary Circuit, meaning the Powertrain Control Module (PCM) has detected a problem with the spark output of the seventh ignition coil.

2. What are the common symptoms of the P2320 code in a Dodge?

Common symptoms include engine misfires, poor acceleration, rough idling, reduced fuel efficiency, and the check engine light turning on.

3. What causes the P2320 code in a Dodge?

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

4. How can I troubleshoot the P2320 code on my Dodge?

Start by inspecting the ignition coil, wiring, and connectors for damage. Test the ignition coil and spark plug for proper function. Use a scan tool to clear the code and see if it returns after repairs.

5. Can a bad spark plug cause the P2320 code in a Dodge?

Yes, a worn or damaged spark plug can disrupt the ignition coil's operation and trigger the P2320 code.

6. Is it safe to drive with a P2320 code on my Dodge?

Driving with this code is not recommended, as it can lead to engine misfires, reduced performance, and potential damage to the catalytic converter if unaddressed.

7. How do I fix the P2320 code on a Dodge vehicle?

Repairs may include replacing the faulty ignition coil, spark plug, or damaged wiring, and in some cases, reprogramming or replacing the PCM.

8. How much does it cost to repair the P2320 code on a Dodge?

The repair cost depends on the cause. Replacing an ignition coil typically costs $100-$300, while fixing wiring or connectors may vary based on labor rates.

9. Can a faulty PCM cause the P2320 code in a Dodge?

Yes, though it is less common, a malfunctioning PCM may fail to properly control the ignition coil and trigger the P2320 code.

10. How can I prevent the P2320 code from occurring again in my Dodge?

Perform regular maintenance, including replacing spark plugs and ignition coils as recommended, and promptly address any wiring or connector issues.

Discuss the causes and fixes for P2320 Dodge OBDII Code

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maynard
Date: August 21, 2012 at 6:46 pm

Ran a bit rough at low speed. At highway speed, it ran fine. Now engine light has cleared and it is running very smooth

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