Circuit/System Description

The Auxiliary Gauge Module contains four gauges that can display voltage, engine oil temperature, engine oil pressure, and either transmission fluid temperature or boost pressure based on the information from the Engine Control Module (ECM) or Transmission Control Module (TCM). The ECM reads the information from various sensors and sends the information via serial data to the Body Control Module (BCM). The BCM then sends the information via serial data to the Auxiliary Gauge Module to display the information.