Engine Oil Pressure Gauge

The auxiliary gauge module displays the engine oil pressure as determined by the engine control module (ECM). The ECM sends the engine oil pressure information via a High Speed CAN-Bus signal to the body control module (BCM). The BCM then sends the information via a Low Speed CAN-Bus signal to the auxiliary gauge module to display the engine oil pressure. The engine oil pressure gauge defaults to 0 kPa (0 PSI) if:

• The ECM detects a malfunction in the engine oil pressure sensor circuit.
• The BCM detects a loss of serial data communications with the ECM.
• The auxiliary gauge module detects a loss of serial data communications with the BCM.