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I had this same problem and it drove my nuts for over a year. In my case, the problem was with Pin#10 in the 20p connector under the dash. The terminal was worn and would occasionally work its way out. This, overtime, arc'd and wore down the terminal connector to next to nothing.
The overall root cause was due to a feed into the alarm which had been tapped into this circuit. The alarm itself was ziptied to a bundle of wires which i guess i was hitting from time to time. The stress on the alarm was pulling this wire ever so slightly. When it would sit in the outward position, it was arcing and wearing down the terminal.
This, in the end, involved relocating this tap further upstream from the 20p connector which removed the stress entirely. I also had to replace the terminal connector (as you'd expect) from the excessive wear. This problem immediately went away and hasn't surfaced in the last year, at least.
I hope this helps. My situation was entirely at the hands of a shoddy alarm installer who was subcontracted from my honda dealer to install my "factory" alarm.
Last edited by achemze; 05-05-2008 at 09:47 PM.
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