P2306
PowertrainIgnition Secondaryhigh severityIgnition Coil F Secondary Circuit
What P2306 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
Where to start: Replace coil and plug.
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