Wiring fault on the actuator control circuit, such as a short to voltage, chafing or damaged insulation; Corroded, loose or damaged connector at the Bank 2 camshaft profile actuator; Faulty camshaft profile actuator or solenoid, with internal short or open circuit; Open circuit or high resistance in the control wire or ground path; Low or contaminated engine oil, or oil pressure problems affecting actuator operation; Fault inside the engine control unit driver circuit; Outdated control unit software where the manufacturer has issued a known update for this fault.

P001F

A Camshaft Profile Actuator A Control Circuit High 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
1F: FaultThe specific fault in that area

What it means

P001F means the engine control unit has detected a high voltage or high signal state on the control circuit for the Bank 2 camshaft profile actuator 'A'. This actuator changes the cam profile or valve lift, depending on the engine design. The control unit commanded the actuator and saw a circuit state that did not match, which points to a short to voltage, a driver fault or an open circuit, depending on the engine.

Symptoms

Engine warning light on
Reduced power or flat feel at higher revs
Rough or unstable idle
Poor fuel economy
Engine may enter limp mode on some models
Possible related camshaft timing or profile fault codes

Possible causes

Wiring fault on the actuator control circuit, such as a short to voltage, chafing or damaged insulationlikely
Corroded, loose or damaged connector at the Bank 2 camshaft profile actuatorlikely
Faulty camshaft profile actuator or solenoid, with internal short or open circuitlikely
Open circuit or high resistance in the control wire or ground pathpossible
Low or contaminated engine oil, or oil pressure problems affecting actuator operationpossible
Fault inside the engine control unit driver circuitrare
Outdated control unit software where the manufacturer has issued a known update for this faultrare

How to diagnose

Read all stored and pending codes and record the freeze frame data, noting engine temperature, load and speed when the fault set.
Check the engine oil level and condition, and confirm the correct grade for the engine.
Visually inspect the Bank 2 actuator, its connector and the wiring harness for damage, oil contamination, corrosion, chafing or heat damage.
Clear the code and see if it returns immediately, or only under certain conditions such as load or temperature.
Use a scan tool with live data or actuator tests to command the actuator and see whether it responds.
Measure the actuator coil resistance and compare with the manufacturer's specification for that engine.
Check the control circuit for short to voltage, open circuit and a good ground, using the wiring diagram for the model.
Check for technical bulletins or software updates relevant to the model and engine.

How to fix

Repair or replace damaged wiring and fix any short to voltage or open circuit.
Clean or replace the corroded or damaged connector and its terminals.
Replace the Bank 2 camshaft profile actuator if its electrical values are out of specification or it does not respond.
Correct the oil level, and change the oil and filter if it is dirty or incorrect.
Update or reprogram the control unit software only if an applicable update exists for a known fault, or repair the control unit if it is proven faulty.

Can I keep driving?

Medium severity

The car can usually be driven short distances, but expect reduced performance and possible limp mode. Get it checked soon, because continued driving with a camshaft profile fault may worsen running and could cause engine damage on some designs.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.