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Maintenance / Re: Amp Meter Resistance, my gauge moves very little
« on: April 09, 2023, 06:57:34 PM »
As Hawk suggests, the GM OE designed ammeter is actually a millivolt meter and indicates the voltage drop between the horn relay buss bar and battery junction block of the red wire installed.
One would need an aftermarket ammeter and #8 AWG wire and install ammeter between the disconnected red OE wire and the relay buss bar.
One would need an aftermarket ammeter and #8 AWG wire and install ammeter between the disconnected red OE wire and the relay buss bar.