shartley Posted November 29, 2006 Report Share Posted November 29, 2006 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. Quote Link to post Share on other sites
Xterra JC Posted November 29, 2006 Report Share Posted November 29, 2006 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. Quote Link to post Share on other sites
jimmy303 Posted November 29, 2006 Report Share Posted November 29, 2006 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.... Quote Link to post Share on other sites
shartley Posted November 29, 2006 Author Report Share Posted November 29, 2006 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 Quote Link to post Share on other sites
jimmy303 Posted November 29, 2006 Report Share Posted November 29, 2006 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. Quote Link to post Share on other sites
shartley Posted November 29, 2006 Author Report Share Posted November 29, 2006 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 Quote Link to post Share on other sites
hummer_h3 Posted November 29, 2006 Report Share Posted November 29, 2006 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. Quote Link to post Share on other sites
cntrylvr79 Posted November 30, 2006 Report Share Posted November 30, 2006 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. Quote Link to post Share on other sites
shartley Posted November 30, 2006 Author Report Share Posted November 30, 2006 Sh$t, now I wish I hadnt ran that wire out to the ECM! Thanks again guys. I'll check behind the radio. Shawn Quote Link to post Share on other sites
jimmy303 Posted November 30, 2006 Report Share Posted November 30, 2006 I keep forgetting that, Cntry. Quote Link to post Share on other sites
cntrylvr79 Posted December 1, 2006 Report Share Posted December 1, 2006 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. Quote Link to post Share on other sites
shartley Posted December 6, 2006 Author Report Share Posted December 6, 2006 I found the wire in the radio harness, perfect. So easy too. Thanks again. Shawn Quote Link to post Share on other sites
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