Willcox Corvette Adjustable Temperature Resistor Installation 1968-1976
Notes: If pre-testing before you install, you must have ohms input for the gauge to work. If you don’t have any input the gauge will to go full cool, if you ground the ohms input wire the gauge will peg hot. You can verify the resistor is working by testing ohms resistance between the two stud holes that mount the board to the back of the gauge. The range is 1 to 150 ohms and the resistor is pre-set at 90 ohms.