Does anyone know what that huge bundle of wires running down the passenger side of the car is? The only thing they went to was the power antenna.

 

Probably the power amp.

 

Nah isn't for that. This is a bundle of small gauge wires. I'm pretty sure whatever they are they have something to do with the car starting, or in my case not starting.

 

pics are worth a 1000 words. i wonder if you are referring to the PCM wiring?

 

Ya I'll get a picture up if I can but I'm going to be a splicing professional after tomorrow because I'm putting it back in. It's the only group of wires that runs down the passenger side of the car.

 

Location would be helpful is this inside the car, under the hood front or rear under kick panel, behind right rear quarter trim etc

If it's in the rear spare tire area it is all for the stock monsoon amp and power antenna. Nothing in that bundle can cause a no start.

 

This bundle runs on the inside of the car, under the carpet, along the passenger side. There were a couple of connectors (I thought they went to the speakers) and some "dead ends" that look to be factory spliced together. The only place they went to was the antenna. It doesn't help with the time that it took between me removing the interior, having the cage installed and then getting back into it to reinstall the interior... FML

 

This is the best picture I have of the bundle. It should at least give an idea of which one I'm talking about. It's the only bundle running along that side of the car. In looking at this picture it reminds me that part of it crossed the car and connected to the other bundle on the driver's side, I didn't even know that. The arrows point to the main part of it. What the hell is it for? I'm stripping the car for the track but it will retain all lights and stuff for the street. Does anyone know what I need out of it and what I don't?

 

I think that bundle does contain the wiring for the fuel pump/sending unit, the rest of it is stereo, taillights (i think), trunk release, and I believe the antitheft sensor (should see a little black module with a red led on passenger side rear fender well where the monsoon amp should be. The little jumper that goes accross the floor pan to the driver side I think is the sail panel and rear trunk panel speaker wires.

everything else engine related is pretty much at the panel infront of the passenger door hinge and runs into the engine bay and ECM or under the Dash and back out to the fuse/relay panel.


I take that back about the jumper, on the other side of the hump in the back, there should be another covered wire set that goes into that metal part on the area where the rear back section of the seat would be. That should be most of your sending unit, and gas vapor control (cant think of the name at the moment) wires. From the underside of the car this area can be disconnected I believe. been a while since I have been under one


Maybe sharing more info about the not starting might be of some help

 

All of this stuff is on the driver's side bundle. The shock sensor was on the passenger side.

I drove the car into the garage after picking it up from Tick. I went through and started to reinstall the interior. Removing things I wouldn't need, speakers and stuff. As I was looking at the bundle of wires I couldn't see that they would be important as they didn't lead to anything really. The only thing connected to them at the end was the shock sensor and the power antenna. So out came the dikes and snip snip. But I had a strange feeling, why was that bundle so big? I kept the bundle "just in case". The only other thing I did was remove the plugs to have a look at them. I replaced them and the wires.

I went to start the car on Saturday to get it ready to have the cage certified and it wouldn't start. The door dings, dash lights come on but when I turn the key to start, nothing. Doesn't try to turn over or anything. The battery should be fine it stays on a charger. So I started thinking, what did I change? The wires, that's it...

Yesterday I started to reinstall them all, screw it. But there are multiple colors of the same wire! So I started going through the bundle pulling out what wasn't needed (what I thought wasn't needed as they didn't connect anywhere) to help eliminate some of the multiple colors. Now one thing I did notice is that like three wires coming from the body control unit (I think that's what it's called) are cut also. I reconnected some of them. I think I still have one or two to reconnect. I'll get a picture of that tonight when I get home as well as have a look under the driver's side of the dash to see if I knocked anything loose trying to shove the wires there back under the dash.

 

The fuel pump comes on when I turn the key...

 

hmm, I wonder if its something related to the antitheft system.. Is there a check engine light on? may find some BCM related codes?

May want to post this with more detail in the stereo and electronics section, VIP1 and Whitebird00 are very knowledgeable about the wiring on these cars.

It sounds like when you tried to remove the harness you may have severed a connection that enabled a lock out.

Had a similar issue when i converted my car to a v8 and put a stand alone harness in, but it ended up being Vats related. Just like your situation though all the lights and everything still worked but when you went from switchted ignition to start the engine everything went shut off.

 

Thanks I may try over there.

 

Im pretty sure most of it is monsoon amp wires and should have terminated in a large bulk connector near the power antenna, so you would have inputs from the radio as well as outputs to all the speakers in the car (which is why there is so many wires in the bundle 2 wires per speaker and the monsoon system is 8 or 10 speakers). Thats also why you commonly find multiple wires of the same color though usually one will have a black or white stripe. Factory stereo wire for GM is quite often purlpe, green, pink, gray, and green in pairs with one of the pairs having the stripe i mentioned

I'm not for certain though, I pulled my monsoon amp out a long time ago, and dont really need that harness either, but since im not as concerned with shaving off some pounds i just left it. Id have to pull out the spare tire panel and look to see how much of the above is correct though But it likely wont help you with your issue, though I can say I have none of that hooked up anymore including speakers or my factory head unit and the car was like that before the swap with no issues.

 

Sir I think i owe you an apology. The more I think about this, and get input from others, the more I think you are right.

This does help actually. It helps me troubleshoot and I think you are completely correct. It all makes sense now. That IS why there are so many small wires (20g) and some (up to three or four) have the same color (no stripe). At first I didn't think it went to the monsoon amp and speaker system because I'm used to after market stereo systems and amps with huge gauge wire. This didn't have that but it did have a pretty think orange wire and a pretty thick black one as well as a couple of thinner (but thicker than 20g) wires. Now I feel pretty confident that I didn't/don't need that bundle of wires and I don't have to waste anymore time trying to reconnect them.

I'm pretty sure (I mean REALLY HOPE) It has to do with the three or four going to the body control unit (or whatever) that got cut. When I cut them I was sure that I didn't do that and only cut the wires going to the rear of the car but maybe they got cut in the frenzy. I'll find out tonight. If it isn't that then I'll need to check the wires under the driver's side dash to see if I knocked something loose.

I just thought of something, if i remember correctly the wires that were cut mistakenly are solid "regular" colors (green,blue,etc) and there are multiple choices for those colors to choose from. UGH.

 

yeah that monsoon amp definitely doesnt have the normal stereo connections for aftermarket units.

Post up some pics when you get a chance and if need be I can open my interior up and see if I can help you match what you need back. I still have my factory wiring in place with the exception of the engine harness. Mines been tore down so many times I think I could do it in my sleep

 

Sweet ok. You may not need to remove anything to see what I need. I think it's under the passenger side dash/foot well. It's just a couple of wires out of the group that go to the body control thingy. Actually I don't know if you can help by looking at it because There are multiple colors of the wires I need to match up. Maybe I'll have to trace them back to rule out the radio ones vs the ones I need. Who knows I'll still take the pictures just in case.

 

yep you never know

 

This is what I'm looking at. 1. Are the wires coming from the BCM. 2. Are wires I started to reconnect but after this thread I think I don't need that stuff as I originally thought, I recut them after this photo. 3. Is what I have left over from the original cut.

I did a little research and found some old threads regarding this stuff and a diagram, I can't find it again at the moment but I believe that the yellow wire with the black stripe is the one causing my non starting issues? I forgot what it is for, again I can't find the info I was looking at last night. The other wires went to the shock sensor. In my bundle there isn't a yellow wire with a black stripe to connect it to. The only wire like that is connected to a small plug with a few other wires on it, I didn't get a picture of that but can when I get home. So if I do connect the yellow wire with the black strip to the matching one on the connector where does that plug into? There are SO many things unplugged on this car, but it ran just fine before I did this.

 

in number one that blue wire towards the bottom of the frame, does it have a white stripe?

if so I think that is the vats signal wire, from the key cylinder