TROUBLESHOOTING HOME
GSC speedometer troubleshooting main page.
GSC speedometers are 3-1 (multifunction, 3 in one gauge) 2-1 speedo/tach combination aguges and studded speedometers.
Speedometer is not operating at all
Speedometer powers up but does not read any speed
Speedometer does not read correct speed
Speedometer does not read speed at low vehicle speeds using OE or 2 wire sender
Speedometer loses programming after shutting off vehicle.
Speed sender troubleshooting
How do I calibrate the speedometer?
How do I change the pulses or sensitivity?