Oops, I posted this Q in the wrong topic - sorry for the double post. I am trying to locate the Speed Sense wire on my '01 Chevy Suburban LT 4x4. The Directed Electronics website says that its a green/white wire at pin 50 of the RED connector at the module. However, all of the connectors are BLACK on mine. I did find a green/white at pin 50 on one of the connectors but there are a lot of other green/white wires on this bad boy. Does anyone have any suggestions? Thanks in advance.

Although only indirect advice, this may help. I purchased the factory service manual for my Xterra. You can get it on CD-Rom, and there are people on eBay who sell copies very cheap. The entire wire diagram is listed, and the wire color codes. May help to find the VSS wire, and I suspect may come in handy for other applications. There are also other websites out there that list color codes, but I would look to the factory manual if you can.

Look in the plug on top of the instrument cluster, there are two green/white wires up there, it is one of those. I use this all the time....

Thanks jimmy, I'll check it out this weekend. Can you tell me how it should read on a multimeter? What sort of voltage will it read when parked and how can I verify that its the correct wire?

Thanks again,

Shawn

It probably won't read anything when you are parked, you need to remove and unlpug the cluster, use a multi meter set to AC voltage, and test the wire with the other lead of the meter tapped to +12v, you will read a varying voltage that increases with speed. Try not to crash into a bus full of nuns.

Nuns?? Thats the least of my worries !! lol - So it reads kind of like a tach wire only that I've got to be moving - got it. Thanks again - watch out NUNS!!

Shawn

Service manual shows it as a red connector too and it is located in pin 50. The other connector should have nothing in pin 50. The VSS is Dark Green/White.

In addition, the gray connector that was plugged into the factory radio also receives the VSS; in pin 16.

Save yourself some headaches. Your VSS wire will be dark green/white at the radio harness.

FYI most gm vehicles that have SCV on the radio will have that same dark green/white wire in the radio harness. Well the ones that use the 70-1858 harness will.

Sh$t, now I wish I hadnt ran that wire out to the ECM! Thanks again guys. I'll check behind the radio.

Shawn

I keep forgetting that, Cntry.

I keep forgetting that, Cntry.

Tell me about it. Just did an AVN7000 in an 02 Escalade, went as far as getting the vss wire to the ecm. Then I realized, F*&K this I can get it at the radio harness. Kinda felt stupid for waisting 20mins running that wire for no reason.

I found the wire in the radio harness, perfect. So easy too. Thanks again.

Shawn