Problem from Previous Alarm install

Hi!

bit of a dilemma here, my mate had an alarm installed, it started to play up. The car is a 1994 Honda Prelude. What happens is that when you turn the key to the "ON" or "II" position, nothing lights up (the engine check light, Hand brake, etc.) so the car would start and then just shut off as the key would automatically go back to position II (on).

Now the problem here, i have figured out that his ECU is recieving no power, thus there is a bridged cable from the ACC fuse to the ECU fuse, and it works fine. I'm 90% sure that the previous alarm was immobilized through the ECU power. The problem now of fixing it is that i dont know/cannot find which wire provides the power to this ECU fuse connection. Any help would be appreciated

thanks.

Im not messing with anything dude.

Ok you know when you turn your key to START, the engine would start then the key would automatically go back to the other position (ON). but it cant because its getting no power to the ECU. The ECU seemed to be previously IMMOBILIZED.. but i cant find the immobilization point.

I'm not a professional installer but even i know this. And if you had any idea whatsoever then you'd have a clue to. There is no power to the ECU fuse and a PROFESSIONAL bridged it there temporary, not i.

I have checked the Ignition harness, its all fine. The problem is the lights require the ECU to be on. So the problem definitely doesnt ly there.

BTW what made you think i messed with the ECU?

i dont know what your problem is. But a professional was paid to do this, and the result was very poor. Which is why i'm trying to figure this out myself. When the car was returned to him he claimed he didnt do it and thought it was dodgy himself.

I have done nothing to the car as of yet, which is the reason why i'm asking for advice. I dont know about your country but in our country we have on our cars either ACC -> On --> Start ... or  I -> II --> III

Hi bob!

I've checked all the ignition and have discovered..

The ignition switch also turns on the ECU.. is that right? but there is no power going to the ECU thus, the ACC fuse was bridged to teh ECU fuse.

What i think, was that the alarm installer who installed this alarm cut the ECU power cable to immobilize it, it broke contact and this is what happened. :( i hope you understand that. My problem is that i really dont want to go behind the fuse to find it. (might take ages).

I was hoping someone on here has immobilized the power on a Honda ECU so i can know which cable is missing contact.