AutoCodes – Jeep – P2328 Jeep

P2328 Jeep Code - Ignition Coil 'J' Primary Control Circuit High

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
P2328 Jeep indicates Ignition Coil 'J' Primary Control Circuit High.
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 1,968
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2328 Jeep 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 P2328 code sets when the PCM detects a short to voltage in the circuit.
OBDII Code P2328 Jeep - Ignition Coil 'J' Primary Control Circuit High - AutoCodes.com
P2328 Jeep Code - Ignition Coil 'J' Primary Control Circuit High

What are the Possible Causes of the DTC P2328 Jeep?

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

How to Fix the DTC P2328 Jeep?

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 P2328 Jeep 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 P2328 Jeep code?

Need more information on how to fix the P2328 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2328 Jeep code diagnosed by a professional: Find a repair shop in your area

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 P2328 Jeep Code

1. What are common symptoms of OBDII code P2328 in a Jeep related to the Ignition Coil 'J' Primary Control Circuit High?

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

2. What can cause the OBDII code P2328 in a Jeep indicating a high primary control circuit in Ignition Coil 'J'?

- Possible causes can be a faulty ignition coil, damaged wiring or connectors, a defective Engine Control Module (ECM), or a poor electrical connection.

3. How serious is the OBDII code P2328 related to the Ignition Coil 'J' in a Jeep?

- Ignoring this code can lead to poor engine performance, reduced fuel efficiency, and potential damage to the catalytic converter. It is recommended to address the issue promptly.

4. Can driving with the OBDII code P2328 in a Jeep be harmful?

- Continuing to drive with this code can potentially cause further damage to the ignition system and other engine components. It is advisable to have the issue diagnosed and repaired as soon as possible.

5. What are some DIY repair tips for resolving the OBDII code P2328 in a Jeep?

- Check the wiring and connectors for any damage, ensure a secure connection at the ignition coil, and inspect the ignition coil for signs of malfunction. If in doubt, seek professional assistance.

6. Is it safe to reset the Check Engine Light after fixing the OBDII code P2328 in a Jeep?

- It is safe to reset the Check Engine Light using an OBDII scanner after the issue has been resolved. This will clear the error code and allow you to monitor if the problem reoccurs.

7. How can a mechanic diagnose the OBDII code P2328 in a Jeep accurately?

- A mechanic can use a scan tool to read the code, perform a visual inspection of the ignition coil and related components, conduct tests on the wiring, and check for proper voltage at the coil.

8. Are there any recalls or technical service bulletins related to the OBDII code P2328 in Jeeps?

- It is recommended to check with the Jeep dealership or manufacturer for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues.

9. Can extreme weather conditions affect the appearance of the OBDII code P2328 in a Jeep?

- Extreme weather conditions, especially moisture or water exposure, can exacerbate electrical issues leading to the appearance of this code. Ensure all components are well-protected and insulated.

10. How much does it typically cost to repair the OBDII code P2328 in a Jeep at a dealership or repair shop?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor at a dealership or repair shop.

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