06 Tahoe \ Ignition 1 Signal 0 volts Engine turns over but wont start!
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06 Tahoe \ Ignition 1 Signal 0 volts Engine turns over but wont start!
I have a 2004 Chevy Tahoe. I’ve been having problems off and on with it not starting. Engine will turn over, but will not start. Well, its gone from intermittent to now it wont start period.
I attributed this to a PASSLOCK issue since my code scanner was showing VTD Fuel Disable Active. I had changed out the ignition a few weeks prior. So I sent the ECU out to have PASSLOCk removed. Got it back today, still not starting. Now the VTD fuel disable is not active anymore, but I am still showing “ ignition 1 signal 0 volts.” I suppose this means I have a whole separate issue..
Again, the engine will turn over but will not start. I thought maybe the neutral safety switch might be the culprit. I shifted to neutral and tried putting pressure towards park while starting. That didnt work. I suppose I need to actually find where that switch is so i can test it with a meter. I pulled every fuse and checked in both the engine bay and the cabin drivers side fuse box. I checked in the engine bay fuse box B+ to both sides of the ECU fuse. I had 12V on one side..
Does anyone have access to whatever circuit this ignition 1 signal is reffering to? If I could at least know whats on that circuit, I can start at the ignition switch and work my way back to the ECU. Any other ideas guys!
Thanks so much for your time!
I attributed this to a PASSLOCK issue since my code scanner was showing VTD Fuel Disable Active. I had changed out the ignition a few weeks prior. So I sent the ECU out to have PASSLOCk removed. Got it back today, still not starting. Now the VTD fuel disable is not active anymore, but I am still showing “ ignition 1 signal 0 volts.” I suppose this means I have a whole separate issue..
Again, the engine will turn over but will not start. I thought maybe the neutral safety switch might be the culprit. I shifted to neutral and tried putting pressure towards park while starting. That didnt work. I suppose I need to actually find where that switch is so i can test it with a meter. I pulled every fuse and checked in both the engine bay and the cabin drivers side fuse box. I checked in the engine bay fuse box B+ to both sides of the ECU fuse. I had 12V on one side..
Does anyone have access to whatever circuit this ignition 1 signal is reffering to? If I could at least know whats on that circuit, I can start at the ignition switch and work my way back to the ECU. Any other ideas guys!
Thanks so much for your time!
Last edited by Bpiatchek; Jul 2, 2024 at 7:42 PM.
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chevyaurora
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