Good evening, here is the info you requested:
Your correct, it has a 3 wire oil pressure sensor....the colors are:
Violet with gray stripe
Pink with yellow stripe
Dark blue with dark green stripe
Here is a pic of the part:
Inorder to access it you will need to remove the alternator
WARNING: DISCONNECT NEGATIVE CABLE FROM BATTERY BEFORE REMOVING BATTERY OUTPUT WIRE (B+ WIRE) FROM GENERATOR. FAILURE TO DO SO CAN RESULT IN INJURY OR DAMAGE TO ELECTRICAL SYSTEM.
If you decide to replace it and the code returns once cleared.....then you will need to run the entire test for this code:
For a complete wiring diagram Refer to Section 8W.
Ignition on, engine not running.
The PCM senses the oil pressure is out of the calibrated range.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
1. ACTIVE DTC
NOTE: Ensure that the engine oil is at the proper level. Also, check the customers oil change history to ensure that the oil is being changed at the correct intervals and that the proper oil viscosity is being used.
Ignition on, engine not running.With a scan tool, read DTCs.
Is the DTC active at this time?
2. (G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
Is the voltage above 0 volts?
3. ENGINE OIL PRESSURE SENSOR
NOTE: Engine Oil Pressure voltage should change from approximately 4.5 volts to less than 0.5 of a volt.
Is the voltage reading within the listed specification when the jumper wire is installed?
NOTE: Remove the jumper wire before continuing.
4. EXCESSIVE RESISTANCE IN THE (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT
CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 to perform diagnosis.
Measure the resistance of the (G6) Engine Oil Pressure Signal circuit from the Engine Oil Pressure Sensor harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms for each circuit?
5. (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
Is the resistance below 100 ohms?
6. EXCESSIVE RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT
Is the resistance below 5.0 ohms?
7. (F856) 5-VOLT SUPPLY SHORTED TO GROUND
8. EXCESSIVE RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT
NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.
Were there any problems found?