Security and anti-theft

[Dennis J.A.A.]

Well, no pictures for obvious reasons but I can tell you that it was much easier than I thought. All you have to do is remove cover underneath the steering column and reach in under the dash and pull wiring loom going to the ignition switch. Remove electrical tape - there are a few wires there. I ended up cutting and splicing the thick (I believe it was green with red stripe) wire (test with tester to see which wire sends juice to the ignition) and just hook it up to a switch hidden somewhere either under the dash or in the glove compartment or even in plain site. After that you can put the wiring loom back together, put some black, electrical tape over it so it looks just like another bunch of wires under the dash. I did use one of the Chicago Lock keyed switches. You can mount it even in plain site but in a way that it could not be tempered with or have wiring easily accessible. Nobody will know what it's for anyway but you. Switch like the one in the photo. Hope that helps.

I waited for a while to ask this question because by now you have played with it a few times. When the alarm goes off and you only have a few seconds to put the key in the ignition and reset it does this new key affect the operation of stopping the alarm?

 

[syncceduppp]

Yea that’s the one. I was suprised my PIU had it already behind the dash. I just got a pigtail and wired it into the BCM. Figured Ford would save the money and not put those in. Just programmed keys and works fine since.

Would you mind confirming the part number of that pigtail for the PATS transceiver?
I found the same thing on my 2018 FPIU - no PATS wiring or plug, just a lonely module clipped on to the ignition. It was the exact same part number as the spare PATS unit I planned to install. The trim around the ignition might look a bit off without that PATS ring filling the gap, so I guess that might explain why Ford installs them anyway. They must be cheaper than it would cost to make and use a plastic dummy part.
Great to know that I can just wire it up to the BCM and get PATS working.

 

[syncceduppp]

I've identified the PATS transceiver pigtail as WPT-1139 3U2Z-14S411-PRC for 2010-2020 Explorers. It's listed as "Anti-Theft Transceiver Connector" or "Transceiver - Passive Anti-Theft (PATS)" in the Motorcraft Pigtail catalogs.