P2303
Ignition Coil C Secondary Circuit
2002-2004 Audi A6 3.0L V6
High SeverityPowertrainGeneric (SAE)
Description
Fault in ignition coil C secondary circuit (typically cylinder 3).
Symptoms
- Cylinder 3 misfire
- Check engine light
Common Causes
- Failed coil
- Worn spark plug
- Boot damage
Diagnostic Steps
- Swap coil
- Check plug
- Inspect for arcing
Repair Notes
Replace coil and spark plug as needed.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P2303 on Other Vehicles
Common Questions
What does code P2303 mean on a 2002-2004 Audi A6?
P2303 stands for "Ignition Coil C Secondary Circuit". Fault in ignition coil C secondary circuit (typically cylinder 3).
What are the symptoms of P2303 on a Audi A6?
Common symptoms of P2303 include: Cylinder 3 misfire, Check engine light.
What causes P2303 on a 2002-2004 Audi A6?
Common causes of P2303 include: Failed coil, Worn spark plug, Boot damage.