P2092 indicates that the engine control module (ECM/PCM) has detected a low voltage condition in the camshaft‑position‑actuator control circuit for bank 2. The actuator adjusts camshaft timing for variable‑valve‑timing (VVT) on the intake or exhaust side, and when the circuit is low the ECM cannot properly command it. This can lead to degraded engine performance and increased emissions.
The most common cause is a short, open, or corroded wire in the actuator circuit, or a loose/damaged connector, which reduces circuit voltage.
The solenoid inside the actuator can fail internally, creating an abnormal resistance or open circuit that the ECM reads as low voltage.
A blown fuse or insufficient voltage to the actuator circuit can result in a low circuit condition.
Many VVT actuators depend on oil pressure; low pressure or dirty oil can prevent proper operation and cause the circuit to read low.
If the sensor that monitors camshaft position fails, the ECM may misinterpret the circuit status, reporting a low condition.
Rarely, the engine control module itself may have an internal problem driving the actuator circuit; this should be considered only after all other causes are ruled out.
You can usually continue driving short distances, but the engine may run rough, have reduced power, and fuel economy may decrease. Prompt diagnosis is recommended to avoid prolonged performance loss.
In most cases the fault lies in wiring, connectors, or the actuator itself. PCM failure is a rare cause and should be considered only after all other possible causes have been ruled out.
Yes, many VVT actuators rely on oil pressure; insufficient pressure or contaminated oil can prevent proper actuation and cause the circuit to read low.
P2092 is a generic OBD‑II code. The bank 2 designation applies to V‑type engines where bank 2 is the opposite side of bank 1, so it can appear on many makes and models equipped with variable‑valve‑timing.