Immobilizer or ECU

2001 HONDA ACCORD
270,000 MILES • 3.0L • V6 • 2WD • AUTOMATIC
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CHAD HARRISON2
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I had to unplug some of the harnesses in the dash area to pull dash out. When in reinstalled the dash and plugged everything back in when I tried to start the car it clicked everything on turned over one time and then completely shut everything down. No lights no power, no crank. When I hooked up a remote starter button the engine would crank but no fire. Ignition relay is good solenoid still working because it turned over, all other fuses still good. only problem is I don't have main key just spare. Trying not to spend $200.00 on new ignition if possible. Any suggestions appreciated.
May 6, 2021 at 9:17 PM
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KASEKENNY
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If the vehicle started before on this key then it should start now using this key. However, is the theft light on when you turn the key to the on position? It should come on and then go off when the ECU gets valid signal from the immobilizer.

However, it sounds like you have a connector that is still unhooked or not properly seated. This issue reminds me of a different Honda that I helped someone with a while ago and that turned out to be a connector issue. He had actually taken some connectors apart to try and find a brake light issue and didn't get them back together and that cause a no start issue.

Below are the fuses that we need to check that run between the passenger and driver side fuse boxes.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let us know about this info and we can go from there. Thanks
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May 8, 2021 at 8:47 AM