Its a 99 mustang gt. i do have a scanner but it want hook up says cant communicate, The key is $85 just want to be sure.Just wondering. What model year Mustang are we dealing with?
But to answer your question. Yes, yes, and Yes. As well as it could be a ton more things in addition to what you have already mentioned.
Do you have access to an ODB2 scanner? If so this might make short work of the problem. Here's some information about an affordable windows based ODB2 scanner:
ForScan ODB2 scanner w ELM327 USB
https://www.stangnet.com/mustang-forums/resources/forscan-odb2-scanner-w-elm327-usb.57/
One sure fire way to check the PCM is to see if an ODB2 scanner will "talk" to it.
If you are looking for other methods to start trouble shooting, Here's some information on how to access the cluster diagnostic mode. This doesn't work on all model years. But the cluster diagnostic method gives a DTC code that can be looked up.
Cluster Diagnostic Mode
http://www.allfordmustangs.com/forums/v6-tech/49159-diagnostic-mode.html
Perhaps the fact that the ODB2 scanner won't communicate with the PCM might be a sign that the PCM isn't working...........Its a 99 mustang gt. i do have a scanner but it want hook up says cant communicate, The key is $85 just want to be sure.
AbsolutelyPerhaps the fact that the ODB2 scanner won't communicate with the PCM might be a sign that the PCM isn't working...........
The PCM and the cluster have to exchange information for PATS to "prove out". It would be EXPECTED to have an "apparent" PATS issue IF the PCM is not powered up.
IMO the odds do not favor this being as simple as a bad key. If it's your intention to spend $$ on only the parts that are needed then more trouble shooting will be necessary. Do you have a Volt Ohm Meter (VOM) and are you willing to use it?
I understand that Ford has used several schemes behind their PATS method. Early on, it disabled only injectors, allowing the engine to crank, but obviously not start....(Nuts, IMO). Later, as on my '04 Explorer, PATS disables all start-up function, that is, no crank, and thus no spark or injection. A fast-winking theft lamp indicates a PATS disable.Perhaps the fact that the ODB2 scanner won't communicate with the PCM might be a sign that the PCM isn't working........... Do you have a Volt Ohm Meter (VOM) and are you willing to use it?
Which browser are you using? Have you tried using Chrome?I can't bring any links up on my cell (Droid phone).
IF fuse F2.34 has power even with the key out, THEN:All fuses are good. Fuses 34 is lights up even with key out. Someone said if that happens it could be the ignition switch. Any thoughts on that.
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