P0010: A Camshaft Position Actuator A Control Circuit/Open Bank 1
What to do
The car will usually drive, with some loss of low-end response and economy. Get it looked at reasonably soon — variable timing faults often begin with a solenoid clogged by dirty oil.
What this code means
An electrical fault in the circuit driving the variable valve timing actuator — the oil control solenoid that advances and retards the intake camshaft on bank 1. This is a circuit code, so the module is reporting what it sees electrically, not whether the cam actually moved. Measure the solenoid's resistance and check its connector before assuming the actuator itself has failed; these connectors sit in oil mist and corrode.
Likely causes
Start here
- Failed camshaft oil control solenoid · easy
- Corroded or loose connector · easy
- Open circuit in solenoid wiring · moderate
Less common
- Low or dirty engine oil · easy
Rare
- Control module driver failure · specialist
Symptoms
Components involved
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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