P2302high severityPowertrain
Ignition Coil B Secondary Circuit
on 2012 Toyota Highlander 2.7L I4 · FWD
What this code means
Fault in ignition coil B secondary circuit (typically cylinder 2).
Symptoms
- Cylinder 2 misfire
- Check engine light
- Rough idle
Common causes
- Failed coil
- Bad spark plug
- Carbon tracking on boot
Diagnostic steps
- Swap coil to test
- Replace spark plug
- Inspect boot
Repair notes
Replace coil and/or spark plug.
Other Powertrain codes on this vehicle
P0001
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P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
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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