Oil Pressure Lamp
Range: ON/OFFThis data indicates what message is being sent from the BCM to the instrument cluster in order to control the oil pressure indicator illumination. When the BCM is commanding the oil pressure indicator to be illuminated, ON is displayed. When the BCM is commanding the oil pressure indicator not to be illuminated, OFF is displayed.
The oil pressure switch is located on the engine. This switch closes with low oil pressure at about 13.8 kPa (2 psi). This switch sends a discrete input to the PCM that in turn sends a class 2 serial data message to the BCM. This condition sends a SPI serial data message to the instrument cluster in order to illuminate the oil pressure indicator.
In the event of a class 2 serial data loss. The oil pressure indicator will not illuminate unless the oil pressure indicator was illuminated when the serial data loss occurred. In the event of a SPI data loss, the oil pressure indicator will not illuminate unless the oil pressure indicator was illuminated prior to the serial data loss.