el System.” Group 14.
Temperature Gauge
Disconnect the terminal from the temperature
sending unit on the engine. Connect one test lead of
tester C-3826 to the terminal and the other test lead
to a good ground. Place the pointer of the gauge
tester on the ”L” position and turn the ignition switch
to “on.” The temperature gauge should show “C” plus
or minus 1/8 inch. Thermal gauges are slow in operation. Allow time for gauge to heat up.
Place the pointer of the tester on the “M” position
and the temperature gauge should advance to the
driving range or 1/2 position of the dial. Place the
pointer of the tester in the ”H” position and the
gauge should advance to the “H” position of the dial.
Should the gauge respond to the above tests but not
operate when the terminal is attached to the sending
unit, indications are of a defective sending unit and it
should be replaced.
Should the gauge fail to respond to the above tests,
indications are of possible loose connections, broken
wire, open printed circuit, or faulty gauge. The instrument cluster should be removed for further in
