With Analog Instrument Cluster

DESCRIPTION
The Analog Cluster consists of magnetic Fuel, Temperature, and Tachometer Gauges. The Fuel and Temperature Gauges consist of three primary coils, one of which is wound at 90 degrees to the other two. The coils form a magnetic field that varies in direction according to a variable sender resistance connected between two of the coils. A magnet, to which a shaft and pointer are attached, rotates to align with the magnetic field. This results in the pointer position being relative to the output of the sender.

COMPONENTS
Fuel Gauge and Fuel Gauge Sender
The magnetic Fuel Gauge controls pointer position based on the resistance of the Fuel Gauge Sender. The sender provides 145 ohms of resistance when the fuel tank is full and 22.5 ohms when the fuel tank is empty.

Electronic Slosh Module or Combination Slosh/Low Fuel Warning Module
The Analog Instrument Cluster is equipped with either an Electronic Slosh Module or a combination Electronic Slosh/Low Fuel Warning Module. The Slosh Module provides a delay circuit to the Fuel Gauge to prevent the Gauge from fluctuating rapidly due to fuel movement in the tank. In addition to this delay circuit, the combination Slosh/Low Fuel Warning Module also provides an output to turn on the Low Fuel Warning Indicator when the Fuel Gauge indicates approximately 1/8 tank. The delay circuit in the module provides a one-minute delay in registering a low fuel warning to compensate for fuel movement in the tank. This delay circuit prevents the warning indicator lamp from being included in the warning lamp test during engine start up.

Temperature Gauge
The magnetic Temperature Gauge controls pointer position based on the resistance of the Coolant Temperature Sender. The Sender provides 74 ohms of resistance when the engine coolant is cold and 9.7 ohms when the engine is hot.

Tachometer
The Tachometer is controlled by a solid-state circuit. With the Ignition Switch in "START" or "RUN", voltage is present at the solid-state circuit through I/P Fuse 18 and circuit 640 (R/Y). With the engine running, and intermittent ground signal (proportional to engine speed) is present through the Ignition Module. The solid-state circuit responds to these inputs by operating the Tachometer needle.

Also included in the Instrument Cluster are the following indicators: Hi Beam, Turn Signal (Left and Right), Fasten Belts, Air Bag, ANTI-LOCK BRAKES, CHECK ENGINE, Oil Pressure, Brake, Liftgate Ajar (Wagon only), Low Washer Fluid, Alternator Warning, Door Ajar, CHECK OIL and Lamp Out.