Damaged, chafed or broken wiring between the control unit and the actuator; Corroded, loose or pushed-out pins in the actuator connector; Faulty actuator or solenoid with an open internal winding; Oil contamination or oil ingress into the connector or wiring loom; Blown fuse or fault in the power or earth supply to the actuator circuit; Fault in the engine control unit driver circuit.

P002A

B Camshaft Profile Actuator A Control Circuit/Open Bank 1.

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
2A: FaultThe specific fault in that area

What it means

P002A is the generic code for an open circuit in the control circuit of the 'B' camshaft profile actuator 'A' on Bank 1. The engine control unit commands the actuator, which varies cam profile or valve lift on systems that have it, and found no current flow or an open circuit when it checked the driver. The exact meaning of 'B' camshaft (intake or exhaust) and the actuator type depends on the make and engine.

Symptoms

Engine warning light on
Reduced power or flat feel at higher revs
Rough idle or uneven running
Poor fuel economy
Engine may enter a limp-home mode
Hesitation or reduced response when accelerating

Possible causes

Damaged, chafed or broken wiring between the control unit and the actuatorlikely
Corroded, loose or pushed-out pins in the actuator connectorlikely
Faulty actuator or solenoid with an open internal windinglikely
Oil contamination or oil ingress into the connector or wiring loompossible
Blown fuse or fault in the power or earth supply to the actuator circuitpossible
Fault in the engine control unit driver circuitrare

How to diagnose

Read all stored and pending codes and note the freeze frame data, including engine temperature, load and rpm when the fault set.
Check for related codes such as other camshaft, timing or oil pressure faults, and check for any relevant manufacturer service bulletins for the model and engine.
Check the engine oil level and condition, as some actuator systems depend on correct oil quality and pressure.
Inspect the actuator connector and wiring on Bank 1 for damage, heat, chafing, oil soaking, corrosion and poor pin tension.
Check the relevant fuse and the power and earth supplies to the actuator against the wiring diagram for the vehicle.
With the connector unplugged, measure the actuator winding resistance and compare it with the specification for that engine.
Check the wiring for continuity from the control unit connector to the actuator and for shorts to earth or supply.
Use a scan tool that can operate the actuator to see whether it responds, and check the signal at the connector if the wiring and actuator test fine.

How to fix

Repair or replace damaged wiring and fit new terminals or connector parts as needed.
Clean, secure and correct the connector pins, and fix any source of oil or water ingress.
Replace the actuator or solenoid if its resistance is out of specification or it fails an operation test.
Replace any blown fuse after finding out why it failed, and repair faulty power or earth supplies.
Change the oil and filter to the correct grade if the oil is dirty or incorrect, then clear the code and road test to confirm it does not return.
Diagnose and, if confirmed faulty, replace or repair the engine control unit as a last resort.

Can I keep driving?

Medium severity

The car can usually be driven carefully for a short time, but performance and economy may suffer and it may go into limp mode. Get it checked soon to avoid further drivability problems or related faults.

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