ultrastart 1505a tach lockout

I have an Ultrastart 1505a remote starter in my 2004 Ford Escape that was installed in 2004.

It has worked fine up until just now. Nothing has been done to the vehicle wiring.

It will not remote start. I get 7 flashes telling me Tach lockout. If I start the vehicle with the key, click remote start button and turn off and remove the key it will keep running until I turn it off with remote. I have done a factory reset and auto tach learn but still nothing.

The only thing that has been different is that I have started the vehicle with remote start (when it was working) but used the actual key to unlock the driver's door. Would this affect the SecuriLock some how and prevent it from starting?

Thanks, any help would be appreciated.

Can't find the install manual for the 1505 system, but...

Insure the Blue/White Tach Input wire is still properly connected to a valid Tach source.  Verify

The Tach Learn process should happen automatically with the first key start-up after a Factory Reset.

Might want to verify that the transponder bypass is still functioning properly.  Try a remote start with

I have only done a visual check on blue/white tach wire so far.

I did get verification on factory reset and Tach learn

I will try with key when I get home

Not sure if Ultrastart 1505a has tach-less feature but will check manual. Can useing tachless cause any damage to vehicle if remote is not working properly?

For the "key in" remote start test you might have to disable the bypass module ( unplug the power to it or interrupt the GWR wire ).

Don't think the earlier Ultra Starts had a Tach-Less mode...

Thanks I'll give it a try.

I tried it with the key in the off position and it did start. Not sure which bypass unit I have. I will get the model number and post it. Are they typically a straight swap or do they need programming and if so can I do it or do I need to bring it in to a shop?