P2306high severityPowertrain
Ignition Coil F Secondary Circuit
on 2009 Subaru Legacy 2.5L H4 · AWD
What this code means
Fault in ignition coil F secondary circuit (typically cylinder 6).
Symptoms
- Cylinder 6 misfire
- Check engine light
Common causes
- Failed coil
- Worn spark plug
- Plug wire resistance high
Diagnostic steps
- Coil swap test
- Check plug
- Measure secondary resistance
Repair notes
Replace coil and plug.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1