P2306 Fault Code

Ignition Coil C Primary Control Circuit Low

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2306 fault code indicates an issue with the ignition coil C primary control circuit. This means that there is an abnormality in the electrical signal that is supposed to power the ignition coil responsible for firing cylinder C. Proper functioning of the ignition coil is critical for engine performance and efficiency.

What are the symptoms of the P2306 code?

If your vehicle is showing a P2306 code, you may experience:

• Engine misfires
• Poor engine performance or acceleration
• Rough idle or stalling
• Decreased fuel efficiency
• Illuminated check engine light on the dashboard

What causes the P2306 code?

Common causes for the P2306 fault code can include:

• Faulty ignition coil C
• Damaged wiring or connectors in the ignition coil circuit
• A defective engine control module (ECM)
• Short circuits or open circuits in the primary control circuit
• Problems with the ignition control system

How to fix P2306?

To resolve the P2306 fault code, consider the following steps:

• Inspect the ignition coil C for any signs of damage or wear, and replace if necessary.
• Check the wiring and connectors in the ignition coil circuit for shorts, opens, or corrosion.
• Test the signal from the ECM to the ignition coil to ensure proper operation.
• If all components check out, consider testing or replacing the ECM if it's found to be faulty.