Engine Oil Pressure (EOP) Gage

The instrument panel cluster (IPC) displays the engine oil pressure on the analog engine oil pressure (EOP) gage as determined by the powertrain control module (PCM). The PCM monitors the signal circuit of the EOP sensor. When the EOP sensor resistance is high, the engine oil pressure is high. When the EOP sensor resistance is low, the engine oil pressure is low. The IPC receives a class 2 message from the PCM indicating the engine oil pressure. The IPC illuminates the check gages indicator when a low oil pressure condition exists. The EOP gage defaults to 0 kPa (0 psi) when the following condition occurs:

• The PCM detects a malfunction in the EOP sensor signal circuit.
• The IPC detects a loss of class 2 communication with the PCM.