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Anyone know the way to hook one of these up? This is what I've found on it so far but I just wanted a second opinion before I do it.
PIN 2(PURPLE, some diagrams stated it's GREEN) data from pin 58 serial data.
PIN 4 (LT BLUE/BLACK)ground
PIN 5 (DARK BLUE)ground
PIN 16 ORANGE/BLACK)power at all times.
It just didn't sound right to me, it seems like there should be more than one wire going to the pcm and why would there be two that go to ground?
thats about right. i know on the standalone harness's ive made i only used 4 wires. power, ground and signal.
That's French.
The comm line is purple, power is black and/or black and white...what else is needed?
thought the black was the ground and the orange was the hot? iid have to check my diagram i made up to varify thisQuote:
Originally Posted by GasGuzzler
Oops. Missed some words
Orange is power. Black and/or black and white is ground. Some have both.
Thanks George.
Mine doesn't have any black wires.
Your OEM ALDL has no black or black/white wires?
That's weird.
Duh! No it's not. You have an OBDI '91. Did your swap harness come with an ALDL?
It came with the reworked harness I bought but wasn't connected it only has the four wires listed in the first post.
There is only one wire needed to the data bus. On an older truck, there is no other Class2 devices besides the PCM so it only needs to go to the PCM. Many components have redundant grounds. It needs power and ground for the scanner.
get it workin low91?
Not yet I've been kinda busy/lazy , but its on my "to do" list for the weekend along with putting in a new radiator and building the brackets for the PCM and cooling fans.
Coolio. I'm curious where your PCM will go. Mine is dangling under the upper radiator hose for now. :p
I am curious to this also. It would be nice to have a diognostic port on a stand alone harness. Post some pics too :D
I'm planning on putting mine where the old fuel vapor canister thing use to go. Right now its wedged between the intake and brake booster.