STEPPER MOTOR TACHOMETERS
Troubleshooting basics:
The gauge requires power, ground, signal and the programming button to properly operate.
Use only the wires for the functions you are going to use, all others can be clipped off and tied back out of the way.
DOES NOT SELF CALIBRATE AT STARTUP
LCD IS BLANK
LIGHTS/DIMMER DO NOT WORK
PROGRAMMING BUTTON DOES NOT OPERATE
HOW DO I CALIBRATE THE TACHOMETER?