P0327moderate severityPowertrain
Knock Sensor 1 Circuit Low Input Bank 1
on 2009 Subaru Forester 2.5L H4 · AWD
What this code means
Low voltage from knock sensor 1, Bank 1.
Symptoms
- Check Engine Light
- Reduced power
Common causes
- Open circuit
- Faulty sensor
- Loose connector
Diagnostic steps
- Test voltage
- Check wiring
- Verify connector
Repair notes
Repair or replace sensor.
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