- Joined
- Nov 23, 2024
- Messages
- 971
- Age
- 50
- City
- Dayton Ohio
- Vehicle Year
- 1994
- Engine
- 4.0 V6
- Transmission
- Automatic
- Total Lift
- Factory what ever that is.
Got to go for now I will pop back in sometime later.
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No real need to tell us when you pop in and out. We’ll see when you reply. And we’ll reply as we are able.Got to go for now I will pop back in sometime later.
I'm a bit hesitant to jump in here, but what 'da hell, here goes,,,
pin 9 in the harness should have a direct route back to the battery negative/ground post.
to test, do a continuity/ohms/resistance check from 9 in the harness to the battery negative. leave it ( 9 ) in the
connector, unscrew the harness from the computer to access the pin.
you may get about 1 ohms there, that's the actual resistance of the wire.
to do a better test rig up a small light bulb, 12v, or test light, and go between 9 in the harness and the positive battery post.
do not run straight wire from the positive to pin 9, that will be a direct short and something will go POP
there must be a load there, that's the light bulb/test light.
that will give you a circuit that goes from the pos terminal, thru the light, then back to neg terminal thru the harness.
it puts a small load on the wires, a volt-meter does not put any load on wires while testing.
ignore any readings from pin 9 on the computer while the harness is unplugged.
So today I was able to do the test that PJ advised.
I now know forsure got good ground.
You can not assume this. It depends on how the circuit is designed to work. Some relays don't have power to any ports unless one or more other things in the circuit are turned on first. This is why it is so important to have and understand the wiring diagrams for what you are working on.1 port I believe should be hot at all times.