Originally Posted by
TheJackel
I think this is a key clue: Anytime the battery is disconnected and reconnected the car will turn over once and then quit. Before you try to start the car the horn and dome light work. After you try to start (car turns over once and quits) the horn no longer works and neither does the dome light. I was told that the dome light, horn and security are on the same fuse and the fuses have been checked and are fine.
The horn is powered by Fuse 6 on the Relay control module (feeds the power to the relay contacts) and Fuse 4 of the Engine fuse block (feeds power to the horn ring/coil via the ignition switch.
Dome light is fed by fuse 9 of the underhood accessory fuse block which is fed from the above fuse 4.
THis "fuse 4" is a 200 amp fuse and is located in the little black box near the battery.
The fast that the horn and dome light quit working is a clue - and I can't see where the SKREEM has anything to do with this.
You better get someone to grab a voltmeter and see where the power is going when the dome and horn quit - fix THAT and you will have a running car again.
Open that damn little box and look for loose *anything*.
Also, "splice block 100" is suspect here, too. But I can't remember where the hell it is. I THINK it's in the fuse box under the hood on the driver's side.