Remote start the first time, ’03 F150, 791

1stclass wrote: I had a problem somewhat like that a while back. I was using a 556u with the 791, the truck I was working on would start 2 out of the 5 times that I tried.  What I found was that the 556u was drawing to much current for the status output wire on the alarm, so the wire would drop the ground.  I put a relay on the status output wire and it worked like a charm.

This is a good reply........!

I did the relay trick. I'll let er sit over night and see what happens. Maybe there is a current issue with an idle battery and natural voltage drop from the diode. I was picking up a floating +12V on the bypass input so I did diode isolate it during the original install. I gave it a test run and the LED on the bypass did glow alot brighter and came on quicker. I'll let you all know what happens for the records.. THANX jpn

1stclass You the man. I made sure it worked and was stable for the last few days. It's starts the first time every time. Even in this -15* highs were getting here. Thanx everyone. I and my starter thank you. --jpn This one may be worth putting in a FAQ or archive section of you have one.