The other day I was dealing with a MAF sensor problem and after I replaced it, the problem did not go away. Then I was using a volt meter to test the wires and as soon as I touched the MAF power wire, the radiator fans came on and security system took over and will not let the car start. Security light stays on.

Radiator fans are on all the time when the ignition is on. Car won't start.

I tried to get the car out of lock mode using the turn on wait 5 seconds turn off sequence and tried this with multiple keys and nothing. Tried the door lock unlock with multiple keys and nothing.

Anyone have any experience with this? I'd hate to tow it to a shop or worse a dealer.

Could it be a short in the IPDM?

 

To check the IPDM function you can do a simple procedure. I have attached the document. Also try disconnecting the negative battery lead overnight.