General
The instrument cluster serves as the primary interface for the vehicle's driver. The following areas are discussed in detail below: Gauges, Driver Information Center (DIC), Indicators, and Odometers.In addition to the areas listed, the instrument cluster communicates with other major electronic components over a class 2 serial data line.
The instrument cluster used in this vehicle is either a base or an uplevel (UB7). A list of instrument cluster functions follows:
^ Speedometer
^ Engine RPM (Tachometer)
^ PRNDL
^ English/Metric Display
^ Fuel Level
^ Odometer Display
^ Driver Information Center (DIC) Display (W/UB7)
- Warning/Status Messages
^ Head Up Display (HUD) Interface (W/UA6)
^ Warning/Status Indicators
- Antilock
- AIR BAG
- BRAKE
- High Beam
- SECURITY
- SERVICE ENGINE SOON
- SERVICE VEHICLE SOON
- Turn Signals
- Fasten Safety Belt
The instrument cluster has the capability to diagnose malfunctions in the sensors, input switches, components and systems it controls or communicates with. When the instrument cluster, or another microprocessor-controlled module, detects a malfunction, it may turn on an instrument cluster indicator or request/display a message to the DIC to alert the driver that a malfunction has occurred. Some indicator lamps and instrument cluster messages have dual controls.