P2089: Camshaft Position Actuator A Control Circuit High — Bank 1
What to do
Rough idle, stalling or hard starting alongside this code is the camshaft pinned where it should only visit — worth prompt attention rather than tolerance. The wiring and the solenoid winding are still the quick first tests.
What this code means
The intake camshaft actuator's control circuit reads high — and this is the direction with teeth, because a line shorted to a supply can drive the solenoid continuously.
A solenoid held on pins the camshaft at its full-travel position, and full advance or retard is a timing the engine is only meant to visit briefly at specific speeds. Held there always, the engine idles roughly or stalls, may be hard to start — and on some designs a camshaft parked at the extreme brings valves and pistons closer than comfortable. The fail-safe logic of P2088 does not apply: this is the failure mode the spring-return cannot rescue, because the circuit is actively fighting the spring.
Same short suspect list as the Low variant, opposite polarity: wiring shorted to voltage, the module's driver stage, the winding.
Likely causes
Start here
- Wiring shorted to voltage · moderate
- Open or shorted solenoid winding · easy
Less common
- Control module driver failure · specialist
Symptoms
Components involved
Information, not instruction
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Community experience
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