General Information

NOTE: THE INFORMATION IN THIS BULLETIN IS FOR THE 1987 OVERHEAD CONSOLE ONLY. PROCEDURES FOR PREVIOUS MODELS ARE OUTLINED IN THE APPROPRIATE OPERATOR'S MANUAL.
The Compass and Temperature Display Module is mounted in the overhead console. This module displays the current vehicle heading (direction) and the current outside temperature. When the ignition is "On", the temperature display can be selected to read in either degrees Fahrenheit or Celsius.

FIGURE 1:

There are two manufacturers of the overhead console: the Prince Corporation, which is used in "E", "H", and "S" bodies; and T.R.W, which is used in "J" body only.

Although made by different manufacturers, both of the overhead consoles function essentially the same. There are some minor physical differences; the Prince unit has two buttons, while the T.R.W. unit has three buttons. The third button allows the operator to turn the compass and temperature displays "On or Off" individually.
When the vehicle is first started, the compass display will show the current vehicle heading as one of eight directions; N, NE, NW, E, SE, S, SW, W. The display will also show the temperature in degrees Fahrenheit or Celsius by pressing the U.S./Metric button to the right of the display (Prince), or the center button (T.R.W.). The outside temperature will be displayed in a range of -40~ to 140~ F (-40~ to 60~ C) on the Prince, or -31~ to 131~ F (-35~ to 55~ C) on the T.R.W., depending on the vehicle.

If you get a display reading of "OC" or -31F (-35C) indicating an open circuit, or an "SC" or 131F (55C) meaning a shorted circuit, refer to Section 8E on Instrument Panel and Gauges, in the appropriate service manual.