Firewall Wire Routing
I recently purchased a 2001 4x4 Blazer (W Vin) and had to replace the wire harness due to a check valve gone bad which burned a large section. While removing the old one I disconnected two wires, Purple w/ White Line and Gray, which did not appear to routed OEM to the harness. These two wires come through the firewall under what I assume is the cruise control box.
I checked the side of the wire harness going to the Fuse Relay Center box and identified a Purple wire w/ White Line going to one of these three fuses IGN B (50A), RAP (50A), IGN A (40A) . Currently the truck starts but has an incredibly weak idle and dies within about 60 seconds and I also cannot put the truck in gear. I am hoping someone can help me with the correct way to route and connect this wire. The wire itself appears to be OEM based on color and condition. The HOA is on my ass so thanks in advance, https://cimg8.ibsrv.net/gimg/blazerf...95ac534ddc.jpg https://cimg3.ibsrv.net/gimg/blazerf...198e270df0.jpg https://cimg6.ibsrv.net/gimg/blazerf...2f3ad55b57.jpg |
I thought purple and white was for the VSS, but I could be wrong.
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I followed the wire on my old harness and this is what I found.
https://cimg3.ibsrv.net/gimg/blazerf...d36b726ddb.jpg fuse box - my thumb is on the location of the wire in question https://cimg5.ibsrv.net/gimg/blazerf...34f67bd55f.jpg fuse box - wire in question https://cimg8.ibsrv.net/gimg/blazerf...bef3e99905.jpg ecu - wire is in terminal labeled 21 |
https://cimg2.ibsrv.net/gimg/blazerf...40add55ab6.jpg
wire connecting to O2 sensor https://cimg5.ibsrv.net/gimg/blazerf...21d3dbacb7.jpg wire that was cut which is tapped into connector for the alternator i believe https://cimg9.ibsrv.net/gimg/blazerf...9b06a10644.jpg wire that was cut which is tapped into connector for the alternator i believe |
Do you know if its supposed to go through the firewall?
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1 Attachment(s)
Apparently, there are multiple purple and white wires. I posted this diagram for somebody else yesterday. Maybe it will help you out, too.
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Originally Posted by Tom A
(Post 743924)
I thought purple and white was for the VSS, but I could be wrong.
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Originally Posted by Tom A
(Post 743928)
Apparently, there are multiple purple and white wires. I posted this diagram for somebody else yesterday. Maybe it will help you out, too.
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Originally Posted by Dayman
(Post 743929)
Do you know if its supposed to be routed through the firewall?
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Im curous if its possible that this goes to the hood switch to control the light
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