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Bmw code P1189

Recently had a check engine light come one. Autozone narrowed it down to a P1189 code but they could not tell me what it meant. I have researched all over the internet and have come to the Fuel Control Bank 2 Sensor 1. Is that difficult to fix myself or do I need to take it to a mechanic? I am fairly handy if I have directions, and I don't have the money, or the desire, to visit the BMW dealership. Any help is appreciative, thanks!

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Diagnostic Test Code (DTC) P1189

Description: "Oil Pressure Switch Signal Voltage Is High"

The engine oil pressure switch closes when there is low oil pressure, making the sensor signal voltage low. The switch opens when the oil pressure is above 4.5 Psi, making the sensor circuit voltage high. The Powertrain Control Module (PCM) monitors the oil pressure switch and sends a class 2 message to the Instrument Panel Cluster (IPC) to tell it if the switch is open or closed. DTC1189 is set when the PCM determines that the sensor signal circuit is high with the ignition switch in the RUN position for more than 10 seconds.

Both the PCM and IPC must be scanned and the data must be checked and verified before the actual cause of this code can be accurately determined. This can be caused by a number of different things including: low engine oil pressure, a malfunctioning oil pressure switch, broken wires or bad connectors, or a defective IPC or ECM.

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