Serial Data Signal
#1
Serial Data Signal
Is there a way to check for the data signal to the gauges using basic equipment like a multimeter? All parts are from a 99 SS, voltmeter and oil pressure work so I have 12v and ground. Gauges signaled from the data line are not working. Any suggestions? Thanks.
#2
TECH Regular
Check the voltage on the serial data wire at the cluster with the key on. It toggles voltage between 0 and 7 volts very quickly so expect your meter to average it out to 3-4 volts. It doesn't really matter what the voltage is as long as it's not 0 or 12v.