555L - Everything reading 12V?

I've spent 2 solid days trying to hook this thing up and make it work.  The car will start and run for 1 sec, and then it dies.  The theft light never comes on.

As a last restort I started testing the leads coming off the 555L, every one of them read 11.x V constant. I unhooked *every* wire except the 12v (red) wire and tested them...... every single wire in the harness including the passlock and passlock ground wires read high 11.x V constant. I'm not an expert, but I don't see how this could possibly be right when all but 1 are listed in the book as - wires.

I called my dealer and they said I was testing wrong, the unit couldn't possibly be defective. I'm testing with a DMM putting the black probe on ground and the red on the wire I'm testing, could this possibly be wrong?I tested with nothing hooked up except the 12v feed into the 555L.Here's the values I got off each wire:

Yellow/Black: 11.21 (passlock)Yellow: 11.12 (passlock)Pink: 11.85 (to ignition)Blue/Black: 11.96 (status) Violet: 11.96 (starter output)Black: 11.86 (passlock grnd)BLACK/ White: 11.05 (bulb test)

What the book lists:

Yellow/Black: R-Code

Yellow: R-CodePink: (+) Igniton OutputBlue/Black: (-) Status Input Violet: (-) Input from starter relayBlack: Passlock Ground inputBLACK/ White: (-) Output to blub check wire

Thanks for your time.

unplug the power wire from the 555l and test for continuity between the wires on the 55l none of them should have continuity if they do the unit is defective.the yellow black and the yellow may have continuity but the rest will never.

mobiletoys2002 wrote: unplug the power wire from the 555l and test for continuity between the wires on the 55l none of them should have continuity if they do the unit is defective.the yellow black and the yellow may have continuity but the rest will never.

Thanks for your reply.  I tested and I didn't get a beep on any of them, not even the 2 passlock wires.

Any ideas as to why as soon as I plug in the power everything reads a steady 12v?  The car starts runs for about 1 sec and dies (no security light).  I've spent over a week hooking this whole unit up.   Is the 12v out of all the wires normal?  I really have a hard time beleiving it is.