Description & Operation
WARNING:
Vehicles are equipped with Supplemental Inflatable Restraint (SIR) system. Before attempting ANY repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM
in AIR BAG RESTRAINT SYSTEMS article.
Speedometer senses road speed by receiving signals from vehicle speed sensor (AC voltage signal generator). Fuel gauge, oil pressure gauge and temperature gauge receive signals from variable-resistance sending units.