Description

DESCRIPTION

A low coolant indicator is standard equipment on all instrument clusters. However, on vehicles not equipped with an optional diesel engine, this indicator is electronically disabled. The low coolant indication appears within the fixed segment odometer Vacuum Fluorescent Display (VFD) unit. The odometer VFD low coolant indicator is a textual LoCOOL message that appears in place of the odometer/trip odometer information.

The odometer VFD unit is soldered onto the cluster electronic circuit board, and is visible through a window with a smoked clear lens located at the base of the cluster overlay right gauge dial face (Dodge) or the tachometer dial face (Chrysler). The dark lens over the VFD prevents it from being clearly visible when it is not illuminated. The low coolant indicator textual message appears in the same blue-green color and at the same lighting level as the other information displayed in the odometer VFD unit when it is illuminated by the instrument cluster electronic circuit board.

During daylight hours (exterior lamps are OFF) the odometer VFD unit is illuminated at full brightness for clear visibility. At night (exterior lamps are ON), the VFD lighting level is adjusted with the other cluster illumination lamps using the panel lamps dimmer thumbwheel of the headlamp switch on the instrument panel. However, a PARADE mode position of the thumbwheel allows the VFD unit to be illuminated at full brightness if the exterior lamps are turned ON during daylight hours.

The low coolant indicator is serviced as a unit with the odometer VFD unit in the instrument cluster.