AutoCodes – Jeep – P2311 Jeep

P2311 Jeep Code - Ignition Coil 'D' 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 'D', Ignition Coil 'D' harness is open or shorted, Ignition Coil 'D' 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: P2311 Jeep indicates Ignition Coil 'D' Secondary Circuit.
Common causes: Common causes include Faulty Ignition Coil 'D', Ignition Coil 'D' harness is open or shorted, Ignition Coil 'D' 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 7,023

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 P2311 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 P2311 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2311 Jeep - Ignition Coil 'D' Secondary Circuit - AutoCodes.com — P2311 Jeep Code - Ignition Coil 'D' Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P2311 Jeep?

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

How to Fix the DTC P2311 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 P2311 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 P2311 Jeep code?

Need more information on how to fix the P2311 Jeep 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 P2311 Jeep Code

1. What are the common symptoms of OBDII code P2311 in a Jeep related to the Ignition Coil 'D' Secondary Circuit?

- Common symptoms include engine misfires, rough idling, loss of power, and potentially a noticeable decrease in fuel efficiency.

2. What are some possible causes of OBDII code P2311 in a Jeep?

- Potential causes 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 underlying issue causing OBDII code P2311 in my Jeep?

- Diagnosis typically involves checking the ignition coil 'D' for proper functioning, inspecting the wiring and connectors for damage, and using a scan tool to analyze data from the ECM.

4. Can I still drive my Jeep with OBDII code P2311 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the ignition system and potentially result in more severe issues.

5. How can I repair OBDII code P2311 related to the Ignition Coil 'D' Secondary Circuit in my Jeep?

- Repair typically involves replacing the faulty ignition coil, repairing any damaged wiring or connectors, and clearing the code with a scan tool.

6. Is it possible for a DIY enthusiast to fix OBDII code P2311 in a Jeep?

- While some experienced DIY enthusiasts may be able to tackle this repair, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.

7. How much does it cost to fix OBDII code P2311 in a Jeep at a repair shop?

- The cost of fixing this issue can vary depending on the specific underlying cause, but it typically ranges from $150 to $400, including parts and labor.

8. Can weather or environmental conditions trigger OBDII code P2311 in a Jeep?

- Extreme weather conditions, such as heavy rain or flooding, can potentially cause water damage to the ignition system components, leading to issues like OBDII code P2311.

9. Are there any preventive measures I can take to avoid OBDII code P2311 in my Jeep?

- Regular maintenance, including checking and replacing ignition system components as recommended by the manufacturer, can help prevent issues like OBDII code P2311.

10. Will OBDII code P2311 cause permanent damage to my Jeep if left unresolved?

- Ignoring OBDII code P2311 can lead to more severe issues over time, potentially causing permanent damage to the ignition system and affecting the overall performance of the vehicle.