Circuit/System Testing
- With the ignition OFF, disconnect the EOP sensor.
- With the ignition ON, install a scan tool and observe the Engine Oil Pressure Sensor parameter in the IPC ECM/PCM Data List.
- If the EOP sensor parameter is at or above 8 kPa (1.16 psi), check the EOP sensor signal circuit for a short to voltage.
- With the ignition OFF, disconnect the negative battery cable and measure the resistance of the EOP sensor low reference circuit.
- If the resistance measured is greater than 5 ohms, check the EOP sensor low reference circuit for an open or a high resistance.
- If the resistance measured is less than 5 ohms, replace the EOP sensor.
- If both circuits tests normal, replace the ECM/PCM.