Remote Start DIY Wiring Guide 2006-2010 Yaris

[JBinc]

I've go an interesting issue. 2007 Yaris sedan, no factory alarm, no engine immobilizer, power locks. I followed the DIY PDF to install U1272 Ultra Start. Had remote lock/unlock functionality with park lamp flash using either of the two fobs, but remote start did not work when I pressed the star button and the horn did not sound with any command. The strange things is that it would remote start intermittently when I pressed the star button, then lock button.

I entered programming mode and was working through the lock button menus when the car suddenly started but never disengaged the starter . I tried pressing the brake then turning the key to OFF (normal to stop remote start functionality), but that didn't work. After some panic, I pulled power to the remote start module. Now every time I apply power to the module, the vehicle instantly cranks, but won't start. I have the hood up (hood switch open) and key is out of ignition--doesn't matter. Continuity is good on the black starter wire to yellow wire from remote starter module. None of the wires of the 6 pin remote starter connector are shorted to ground (continuity checked). Is there somewhere I can check to see if the module could be giving ground when it shouldn't. Please help!