Damaged or disconnected electrical connector at the bank 2 camshaft profile actuator; Broken, chafed, or corroded wiring in the actuator control circuit; Failed camshaft profile actuator solenoid (open internal coil); Faulty powertrain control module driver circuit (rare); Poor ground connection for the actuator circuit; Oil sludge or debris blocking the actuator, causing it to overheat and fail electrically

DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P001D

P001DA Camshaft Profile Actuator A Control Circuit/Open Bank 2

Q: What does code P001D mean?

A Camshaft Profile Actuator A Control Circuit/Open Bank 2. P001D indicates that the powertrain control module has detected an open circuit or excessive resistance in the control circuit for the bank 2 camshaft profile actuator, which is the solenoid that moves the camshaft to change valve lift or timing. The computer commands the actuator to a position and monitors the electrical feedback; when the expected current or voltage is not seen, it sets this code.

P001D indicates that the powertrain control module has detected an open circuit or excessive resistance in the control circuit for the bank 2 camshaft profile actuator, which is the solenoid that moves the camshaft to change valve lift or timing. The computer commands the actuator to a position and monitors the electrical feedback; when the expected current or voltage is not seen, it sets this code.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering and auxiliary emission controls

Symptoms you may notice

Illumination of the check engine light, often with no other symptoms noticed by the driver
Rough idle or unstable engine operation, especially when cold
Reduced engine power or a limp-home mode
Poor fuel economy or increased emissions
Unusual engine noises such as ticking or rattling from the affected bank
Difficulty starting or stalling when coming to a stop

Common causes, most likely first

Damaged or disconnected electrical connector at the bank 2 camshaft profile actuator
Broken, chafed, or corroded wiring in the actuator control circuit
Failed camshaft profile actuator solenoid (open internal coil)
Faulty powertrain control module driver circuit (rare)
Poor ground connection for the actuator circuit
Oil sludge or debris blocking the actuator, causing it to overheat and fail electrically

How to diagnose and fix it

Inspect the actuator connector and wiring for obvious damage, corrosion, or looseness; clean and secure as needed
Check the actuator solenoid resistance with a multimeter and compare to the manufacturer's specification
Test the control circuit for continuity and short-to-ground or short-to-power using a wiring diagram
Verify power and ground at the actuator connector with the key on and engine off
If the circuit tests good, command the actuator with a scan tool and observe current draw and movement
Replace the camshaft profile actuator if it fails electrical or functional tests
Clear the code and perform a road test to confirm the repair and ensure the code does not return

What the code does not always mean

A P001D is often set by a simple unplugged or loose connector rather than a failed actuator, so always check the plug before condemning parts.
The code can be triggered by a momentary voltage drop during engine cranking, so a single occurrence may not indicate a hard fault.
On some engines, the same actuator circuit is shared with other components, and a fault in a related system can cause this code to set.
Oil condition plays a role: sludge can cause the actuator to stick and draw excessive current, leading to an open-circuit code without a wiring problem.
After replacing the actuator, some vehicles require a relearn procedure for the camshaft profile system to prevent the code from returning.

Can I keep driving with P001D?

You can usually drive the vehicle with this code, but avoid heavy acceleration and towing until it is repaired. Prolonged driving with a faulty actuator can lead to poor fuel economy, increased emissions, and potential damage to the catalytic converter.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.