AutoCodes – Ford – P2302 Ford

P2302 Ford Code - Ignition Coil 'A' 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 'A', Ignition Coil 'A' harness is open or shorted, Ignition Coil 'A' 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
P2302 Ford indicates Ignition Coil 'A' Secondary Circuit.
Common causes
Common causes include Faulty Ignition Coil 'A', Ignition Coil 'A' harness is open or shorted, Ignition Coil 'A' 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,091
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 P2302 Ford 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 P2302 code sets when the PCM detects a short to voltage in the circuit.
OBDII Code P2302 Ford - Ignition Coil 'A' Secondary Circuit - AutoCodes.com
P2302 Ford Code - Ignition Coil 'A' Secondary Circuit

What are the Possible Causes of the DTC P2302 Ford?

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

How to Fix the DTC P2302 Ford?

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 P2302 Ford 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 P2302 Ford code?

Need more information on how to fix the P2302 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2302 Ford 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 P2302 Ford Code

1. What are the common symptoms of OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

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

2. What are the possible causes of OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- The code can be triggered by a faulty ignition coil, damaged wiring or connectors, a problem with the ignition control module, or issues with the PCM.

3. How can I diagnose the cause of OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- You can use a multimeter to test the resistance of the ignition coil, inspect the wiring and connectors for damage, and perform a scan tool test to check the ignition control module and PCM.

4. Can a bad spark plug cause OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- Yes, a worn-out or faulty spark plug can cause the ignition coil to malfunction and trigger the P2302 code.

5. How do I repair OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- Repair involves replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, and addressing any issues with the ignition control module or PCM.

6. Is it safe to continue driving with OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- It is not recommended to drive with this code as it can lead to further damage to the engine and other components. It's best to address the issue promptly.

7. Can I reset the Check Engine Light after fixing OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- Yes, you can reset the Check Engine Light using an OBDII scanner after the repair is completed to clear the code from the system.

8. Are there any preventive measures to avoid OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- Regular maintenance, such as changing spark plugs and inspecting ignition components, can help prevent issues that may trigger this code.

9. How long does it take to repair OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit?

- The repair time can vary depending on the exact cause of the code, but it typically takes a few hours to diagnose and replace the faulty components.

10. Can I fix OBDII code P2302 in a Ford related to the Ignition Coil 'A' Secondary Circuit myself, or should I consult a professional?

- While some DIY enthusiasts may be able to address this issue, it's recommended to consult a professional mechanic for an accurate diagnosis and proper repair to ensure the problem is resolved effectively.

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