P2308 Fault Code

Ignition Coil C Secondary Circuit

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

The P2308 fault code indicates a problem with the secondary circuit of the ignition coil C in your vehicle's engine management system. This issue can lead to poor engine performance, misfires, or difficulty starting the vehicle.

What are the symptoms of the P2308 code?

Symptoms associated with the P2308 code can include:

• Engine misfires or rough idle
• Decreased engine power and acceleration
• Check Engine Light (CEL) illuminated on the dashboard
• Difficulty starting the engine or stalling while driving

What causes the P2308 code?

Common causes of the P2308 code include:

• Failed ignition coil C
• Damaged wiring or connectors in the ignition system
• Faulty Engine Control Module (ECM) or Powertrain Control Module (PCM)
• Poor ground connection for the ignition coil circuit

How to fix P2308?

To resolve the P2308 fault code, follow these steps:

1. Inspect the ignition coil C for any visible signs of damage or wear.
2. Check the wiring and connectors for continuity and signs of corrosion or breaks.
3. Test the ignition coil using an ohmmeter to ensure it meets manufacturer specifications.
4. If the ignition coil is faulty, replace it with a new one and clear the fault code.
5. If the problem persists, further diagnose the ECM/PCM and ground connections for issues.