What it means
Open circuit at the cam profile actuator (intake, profile A, bank 2). Same fault as P001A but on bank 2. The cam phaser actuator adjusts intake/exhaust timing under load — a stuck or slow phaser kills mid-rpm torque and can throw correlation codes between cam and crank.
At a glance
- Usually lights the check-engine light
- Affects emissions; the car can fail an emissions test
How it works
The bank 2 intake camshaft profile A actuator selects a cam-lift mode on engines with selectable lift profiles. The engine control module monitors this actuator's control circuit; this code sets when the bank 2 circuit is open, preventing the actuator from being driven.
Common causes
Most likely first.
- Wiring break
- Actuator coil open
- Pin pushed back out of connector body
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
How to diagnose it
- Save freeze-frame data and check for related actuator or camshaft codes to see whether other bank 2 faults are present.
- Inspect the bank 2 profile A actuator connector for a loose plug, corrosion, damaged terminals, or a pin pushed back into the connector body.
- Trace the bank 2 actuator harness for breaks or chafing, especially near the actuator and connector.
- Check continuity through the actuator coil and its circuit using the manufacturer's procedure to locate an open.
- If continuity is intact, check the module command and control circuit as specified by the manufacturer.
Common fixes
- Reconnect and secure the bank 2 profile A actuator connector.
- Repair a broken or chafed wire in the bank 2 actuator circuit.
- Replace a damaged connector terminal or connector housing.
- Replace the bank 2 profile A actuator if its coil is confirmed open.
Can I keep driving?
The engine may have reduced power or run roughly if it cannot select the intended cam-lift profile. Avoid hard acceleration when symptoms occur, and stop if it stalls.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.