AutoCodes – Dodge – P2329 Dodge

P2329 Dodge Code - Ignition Coil 'J' 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 'J', Ignition Coil 'J' harness is open or shorted, Ignition Coil 'J' 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: P2329 Dodge indicates Ignition Coil 'J' Secondary Circuit.
Common causes: Common causes include Faulty Ignition Coil 'J', Ignition Coil 'J' harness is open or shorted, Ignition Coil 'J' 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 2,372

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2329 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 P2329 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2329 Dodge - Ignition Coil 'J' Secondary Circuit - AutoCodes.com — P2329 Dodge Code - Ignition Coil 'J' Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P2329 Dodge?

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

How to Fix the DTC P2329 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 P2329 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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Need Help with the 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 P2329 Dodge Code

What does the OBDII code P2329 mean for a Dodge vehicle?

The P2329 code indicates an issue with the ignition coil 'J' secondary circuit, typically related to a malfunction in delivering the proper voltage to ignite the air-fuel mixture.

What are the symptoms of the P2329 code on a Dodge?

Common symptoms include engine misfiring, rough idle, poor acceleration, reduced fuel efficiency, and the Check Engine Light illuminating.

What causes the P2329 code in a Dodge vehicle?

Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a malfunctioning spark plug, or issues with the Powertrain Control Module (PCM).

Can driving with the P2329 code damage my Dodge?

Yes, driving with this code can lead to engine performance issues, increased emissions, and potential damage to the catalytic converter over time.

How do I diagnose the P2329 code in my Dodge?

Start by inspecting the ignition coil 'J' and its wiring for damage or corrosion. Use a multimeter to test the coil and check for proper voltage. Scanning the PCM for related codes can also help pinpoint the issue.

How do I fix the P2329 code on a Dodge?

Repairs may involve replacing the ignition coil 'J,' repairing or replacing damaged wiring or connectors, installing new spark plugs, or reprogramming or replacing the PCM if it's faulty.

Can a bad spark plug cause the P2329 code?

Yes, a worn or damaged spark plug can cause the ignition coil to fail, triggering the P2329 code.

What tools are needed to repair the P2329 code?

You may need an OBDII scanner, a multimeter, basic hand tools, and replacement parts such as ignition coils, spark plugs, or wiring components.

How much does it cost to fix the P2329 code?

The cost varies depending on the issue, but replacing an ignition coil typically costs $100–$300, while spark plug replacement might cost $50–$150. Diagnostic fees may add to the total.

Can the P2329 code be resolved without professional help?

If you're experienced with car repairs, you can potentially fix it by inspecting and replacing the ignition coil, spark plugs, or wiring. Otherwise, it's best to seek help from a professional mechanic.