AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Generic - P2302

P2302 Code - Ignition Coil 'A' Secondary Circuit

- Code Popularity: 35,094 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P2302?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Ignition Coil 'A'
  • Ignition Coil 'A' harness is open or shorted
  • Ignition Coil 'A' circuit poor electrical connection
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC P2302?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for P2302 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2302 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine may be running rough

Code P2302 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 - Ignition Coil 'A' Secondary Circuit - AutoCodes.com
P2302 Code - Ignition Coil 'A' Secondary Circuit

Need More Information on the Code?

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

Information for Specific Makes

Need Help with the Code?

Get the P2302 code diagnosed by a professional: Find a repair shop in your area

Code P2302 comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P2302 code? Have you replaced any parts?
Any information is appreciated. Thanks