P005D
B Camshaft Profile Actuator A Control Stuck On Bank 2.
- Generic
- Powertrain
- Generic code
- Medium severity
How this code is built
- P
- SystemPowertrain
- 0
- Defined bySAE, the same on every car
- 0
- AreaFuel and air metering, auxiliary emission controls
- 5D
- FaultThe specific fault in that area
What it means
P005D means the engine control unit has detected that the actuator for the B camshaft profile control (variable cam profile or valve lift system) on Bank 2 is stuck in the on or activated position. The control unit compares the commanded state with the feedback it gets, such as cam position signals or the switching response, and they do not agree. Which camshaft is the B camshaft, and how the system switches, depends on the engine, so check the manufacturer data for the specific model.
Symptoms
- Engine warning light on
- Rough running or uneven idle
- Reduced power or flat feeling at higher revs
- Poor fuel economy
- Possible limp mode or restricted engine speed
- Mechanical ticking or rattle from the cylinder head on some engines
Possible causes
- Low, dirty or wrong-grade engine oil, or oil pressure problems affecting the oil-operated actuatorlikely
- Sticking or contaminated actuator or control solenoid on Bank 2, or a blocked oil feed screen or passagelikely
- Wiring or connector fault in the actuator circuit, such as chafing, corrosion or a loose pinpossible
- Faulty camshaft or crankshaft position sensor giving a false feedback signalpossible
- Mechanical fault in the cam profile mechanism, such as a jammed switching element, worn lobe or damaged followerpossible
- Incorrect cam timing, for example a stretched chain or a timing faultrare
- Outdated or faulty control unit software or calibration, where the manufacturer has a known fixrare
How to diagnose
- Read all stored and pending codes and the freeze frame data, noting engine temperature, load and speed when the fault set.
- Check the engine oil level, condition and grade against the manufacturer specification, and look for sludge or dilution.
- Inspect the Bank 2 actuator or solenoid wiring and connectors for damage, oil contamination, corrosion and poor pin tension.
- Check for related codes such as cam position, cam timing or oil pressure faults, and deal with those first.
- Use live data to compare the commanded and actual cam position or actuator state on Bank 2 while the engine runs and as it is revved.
- Test the actuator solenoid resistance and its control signal against the manufacturer specification.
- Check the oil pressure with a mechanical gauge and inspect the solenoid oil feed screen if the design allows.
- Check for relevant software updates or technical bulletins for the engine, and inspect the cam timing and profile mechanism if the electrical checks pass.
How to fix
- Correct the oil level and change the oil and filter to the specified grade if it is low, dirty or wrong.
- Clean or replace the Bank 2 actuator or solenoid and clear any blocked oil feed screen or passage.
- Repair or replace damaged wiring, connectors or terminals in the actuator circuit.
- Replace a faulty camshaft or crankshaft position sensor once testing has confirmed it.
- Repair or replace the cam profile mechanism or correct the cam timing if mechanical damage or wear is found.
- Update the control unit software only if the manufacturer lists an outdated calibration as a known cause.
Can I keep driving?
Short, gentle driving is usually possible, but get it diagnosed soon because a stuck actuator can cause poor running and, if oil or mechanical faults are behind it, engine wear. Stop driving if you see low oil pressure warnings, loud mechanical noises or severe power loss.
Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.