DTC P0522: Oil Pressure Sensor Volts Low: Testing

Turn ignition on, with engine off. Using scan tool, read oil pressure sensor voltage. If voltage is .1 volt or less, go to step 4 . If voltage is more than .1 volt, go to next step.
Turn ignition off. Visually inspect related connectors and wiring harness for damage. Repair connectors and wiring harness as necessary. If connectors and wiring harness are okay, go to next step.
Turn ignition on, with engine off. Using scan tool, monitor oil pressure sensor voltage while wiggling oil pressure sensor wiring harness and connector. Oil pressure sensor is located on right side of engine near distributor (2.5L) or camshaft position sensor (4.0L) and has a Black 3-pin connector. If oil pressure sensor voltage changes while wiggling wiring harness, repair wiring harness or connector where wiggling caused voltage to change. If voltage does not change, no problem is indicated at this time. Test is complete.
Turn ignition off. Disconnect oil pressure sensor connector. Oil pressure sensor is located on right side of engine near distributor (2.5L) or camshaft position sensor (4.0L) and has a Black 3-pin connector. Inspect connector for damaged pins, corrosion and loose terminals. Repair connector as necessary. If connector is okay, turn ignition on, with engine off. Using scan tool, read oil pressure sensor voltage. If voltage is 4.5 volts or less, go to next step. If voltage is more than 4.5 volts, replace oil pressure sensor.
Turn ignition on, with engine off. Measure voltage between ground and Violet/Orange wire at oil pressure sensor connector. If voltage is more than 4.9 volts, go to next step. If voltage is 4.9 volts or less, repair open in Violet/Orange wire between oil pressure sensor and PCM.
Turn ignition off. Disconnect Powertrain Control Module (PCM) connectors. PCM is located in engine compartment on left front fender, near radiator support. Inspect connectors for damaged pins, corrosion and loose terminals. Repair connectors as necessary. If connectors are okay, measure resistance between ground and Gray/Yellow wire at oil pressure sensor connector. If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, repair short to ground in Gray/Yellow wire.
Measure resistance between Gray/Yellow wire and Brown/Yellow wire at oil pressure sensor connector. If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, Gray/Yellow wire is shorted to Brown/Yellow wire. Repair wiring as necessary.
At this time, PCM is assumed to be defective. Replace PCM.