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Home >> Infiniti >> 2000 >> Q45 t >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Description & Operation

Description & Operation

WARNING: Deactivate air bag system before performing any service operation. See 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.

The combination meter (instrument cluster) consists of the following major components: odometer/trip meter, speedometer, tachometer, fuel gauge and coolant temperature gauge. Combination meter is controlled by a control unit within the combination meter assembly. Various warning lights, system indicators and gear selector position indicators are bulb-type circuits. These circuits, as well as gauges and tachometer, are harnessed via a Flexible Print Circuit (FPC) from the rear of the combination meter. Combination meter can be removed with gauges installed, and is serviced as a complete assembly.

A digital odometer/trip meter displays vehicle mileage and has 2 trip meter functions. To select between which display to view, depress reset button for less than a second to choose between odometer, trip "A" or trip "B" displays. Odometer readings cannot be erased or lost, but trip odometers can be reset by depressing and holding the reset button. The combination meter offers diagnostics for digital display, in addition to diagnostic check for speedometer, tachometer and both gauges. Operation of the tachometer is based on input signal received from the Powertrain Control Module (PCM).

NOTE: Fuel gauge reading may take 60 seconds to stabilize.