65amp wiring/trouble shooting
Connections of all sorts are weak points.
here's an earlier model where several connections, including one of ammeter's studs got damaged.
Anyone Know What this Connector is Called?
Here's a way to test an ammeter for resistance when its off the vehicle.
First just measure with a multimeter. If it shows more resistance than when the probes are touched to each other, that's a problem. Fix or replace.
If it passes that test, then run current through it and measure for voltage drop.
Setup like this
Then complete the circuit
The ammeter will show the current, and the voltmeter will indicate the ammount of voltage drop caused by the current flowing through the meter.
It may not be zero depending on the sensitivity of the meter, but it should be pretty close to zero with only 4 to 5 amps through it.
edit:
There's some photos of a good gage in this thread, followed by some photos of damaged gages. They're not all the same as the one in your car but gives you an idea of how they should look.
Connections of all sorts are weak points.
here's an earlier model where several connections, including one of ammeter's studs got damaged.
Anyone Know What this Connector is Called?
Here's a way to test an ammeter for resistance when its off the vehicle.
First just measure with a multimeter. If it shows more resistance than when the probes are touched to each other, that's a problem. Fix or replace.
If it passes that test, then run current through it and measure for voltage drop.
Setup like this
Then complete the circuit
The ammeter will show the current, and the voltmeter will indicate the ammount of voltage drop caused by the current flowing through the meter.
It may not be zero depending on the sensitivity of the meter, but it should be pretty close to zero with only 4 to 5 amps through it.
edit:
There's some photos of a good gage in this thread, followed by some photos of damaged gages. They're not all the same as the one in your car but gives you an idea of how they should look.
