P3011moderate severityPowertrain
Camshaft Profile Actuator A Control Circuit Bank 1
on 2021 Mazda Mazda3 2.0L I4 · FWD
What this code means
The electrical circuit for the camshaft profile actuator A on Bank 1 is malfunctioning. The PCM cannot properly command the cam profile switch.
Symptoms
- Check Engine Light
- No cam profile switching
- Reduced high-RPM performance
- Engine feels flat above mid-RPM
- Poor fuel economy at highway speeds
Common causes
- Open or short in actuator circuit
- Faulty actuator solenoid coil
- Corroded connector pins
- PCM driver failure
- Damaged wiring near exhaust
Diagnostic steps
- Measure voltage at actuator connector
- Test actuator solenoid resistance
- Inspect wiring for damage near exhaust manifold
- Check PCM output with oscilloscope
- Verify connector pin condition
Repair notes
Repair wiring or replace cam profile actuator solenoid.
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