Section 102 (Instrument Panel - Analog): Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Sonoma, 1999 GMC Jimmy, 1999 GMC Envoy, and 1999 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Deactivate air bag system before performing any service operation. See appropriate AIR BAG RESTRAINT SYSTEMS article. DO NOT apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.
Instrument Panel Cluster (IPC) uses analog speedometer and gauges. Tachometer is standard equipment on Bravada and Envoy. Tachometer is optional on all other models. See Fig 1 or Fig 2 . IPC contains a microprocessor. Communication with other modules is transmitted over Class 2 serial data bus. Instrument cluster gauges and indicators are provided input from microprocessor or directly from sending units or sensors.