P2302 Fault Code

P2302 OBD-II Trouble Code Short Description

Ignition Coil A Secondary Circuit

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What does trouble code P2302 mean?

The P2302 fault code indicates an issue with the ignition coil A secondary circuit. This code typically appears in vehicles equipped with ignition coil systems. The secondary circuit is responsible for delivering high voltage to the spark plugs, which ignites the air-fuel mixture in the engine cylinders. When this circuit malfunctions, it can lead to misfires and poor engine performance.

Symptoms

What are the symptoms of the P2302 code?

  • Engine misfires or rough idling
  • Reduced engine power
  • Poor fuel economy
  • Check engine light illumination on the dashboard
  • Increased emissions from the exhaust

Causes

What causes the P2302 code?

  • Faulty ignition coil A
  • Damaged wiring or connectors in the ignition coil circuit
  • Bad engine control module (ECM)
  • Failed spark plugs
  • High resistance in the ignition coil circuit

Possible Solutions

How to fix P2302?

  • Inspect the ignition coil A for visible damage or wear
  • Test the ignition coil with a multimeter to check for proper resistance
  • Check all wiring and connectors for damage or corrosion
  • Replace any faulty components, including the ignition coil, spark plugs, and wiring as necessary
  • Clear the fault code and test drive the vehicle to ensure the issue is resolved
P2302 Ignition Coil A Secondary Circuit