2000 Mazda 626 bypass trouble

Had this car today, couldnt get the remote start to work since the vehicle would not recognize the 556u.  The r/s was the Viper 771XV.  With the key in the ignition, the car would start and run correctly from the remote start.  When tried to remote start by the 556u, the car would start and then die.  When I tried moving the ring or the key, the car would sometimes run for 5-6 seconds before cutting off again.  This car should be as simple as they get, but this one just refused to run off the bypass.  Could there be anything I would be missing or need to re-check to make this bypass work?? 

I tried repositioning the key inside the bypass, using another key, tried another bypass module, moved the ring any and everywhere it was possible to be moved on the key cylinder, and still got the same results.

When you RS the car can you hear the bypass turning on? If you have your hand on it can you feel the relay click, and did you make the mistake of hooking up the pink wire comming off the 556U. Also when you said the key was in the ignition, it was in but still left in the off spot right?double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

the 556u was working, it clicked over every time.  12 volt, ground and status wires were hooked up off the bypass, no pink.  And when the key was in the ignition, it was still left in the off position.

Hmmm, thats interesting. Was the status wire hooked up to the blue or the blue/white on the 771. The Blue/qhite can be switched to a pulse signal for rear defrost and that could cause your problem. double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

1:   intead of putting the key in the ignition, just put the rubber or plastic part of the key against the key cylender and try the alarm r/s.   if it does not turn on the car may need to see a key sense signal. if it turns on.......... 2:   put the ring of the bypass right against the front of the key cylender, remenber right in front not around. if it works the reader is only reading to the front of the cylinder, it must have a plastic cover behind it, check and carefuly break a piece of it on the backside so it could read towards the back that should take care of your problem

Ravendarat - I first used the status on the bypass, then tried putting the status on the bypass just to ground to make sure it wasnt the status not working properly.  The bypass would come on like it was suppossed to.ossrom - I tried the keysense on this car also.  It was the only factory alarm unarm feature directechs listed.  The diasrm no unlock.  Even after powering keysense, the car would still start, run for a couple seconds and die.  There is a red light on the dash that has a key in the background that illuminated every time I tried remote start, so I know it wasnt reading the key.  As for the cylinder, its got a black piece of plastic on the front where the key is inserted, but nothing anything else is plastic. 

This is a classic problem with the universal bypass modules. Here's a tip for you and anyone else using these universal bypass modules. DO NOT use the wire loop that they provide to you with the universal bypass modules as they are too thick. You can only get about 3 maybe 4 wraps before you reach the end of the wire. What I do and this has worked for every vehicle that I've done ( even those hard to reach '05 Altima's )is cut off the wire loop on the modules and I wire in my own 22 gauge wire from a telephone cable. I wrap the wire around the cylinder about 8-10 times and solder the two ends to the two ends that I cut from the wire loop. After I wrap the wire tight around the ignition barrel, I usually twist the remainder of the wire like a Glad garbage bag tie wrap at the bottom of the barrel to ensure that it is tight and I hot glue the botton of the barrel to ensure that it won't come loose and so you don't see and hot glue drops.Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

I believe on that car you have to get a transponder ring from Mazda. Download Techtip 1061 from directechs and you will see what I mean. I'm not sure why directwire doesn't have a note to look at that techtip anymore for that car. I did one a couple years ago. The part was only around $20 or so from my Mazda dealership and they had to order it. It only took a day or two to get. I think the reason you can't use a 556U is because the car reads the key from the inside section of the factory transponder ring. When you wrap your wire or bypass ring around the outside it doesn't pick up the signal.