Anti-Theft Unexpededly Activated

tpndrcn · Nov 3, 2014

Last night after my family and I stopped into the pet store and came back out my 08' Expy wouldn't start. Initially I thought my battery was dead and had a individual try and jump me with no luck. Then I had him take me to the local Farm and Fleet to get a new battery still with no luck. My wife then noticed that the anti-theft light was flashing when turned the key to run position. I am using the factory keys and haven't changed since I bought it about a month ago. What triggered the anti-theft??? Its being towed to the Ford Dealership now as we speak to be looked at.

tpndrcn · Nov 3, 2014

Has anyone experienced this problem??

tpndrcn · Nov 3, 2014

Dealer is telling me that pinpoint test is pointing towards a bad P.A.T.(Passive Anti-Theft) transceiver and if not that then the cluster!!

jimp · Nov 4, 2014

Have not experienced this but am following the tread, please keep us posted.

DF5.4 · Nov 4, 2014

Did you try a different key?

tpndrcn · Nov 4, 2014

DF5.4 yes i did try my other factory key and it didn't work either. It says to try different keys or, wait 15 mins and it will reset. I also unhooked the battery and still no results. I gave the dealer the go ahead to replace the P.A.T.s transceiver today so i will keep you all updated. It looks like the Gen 2 Expys had this condition too!

tpndrcn · Nov 4, 2014

Just received a phone call from the dealer , the transceiver was bad ,however it didn't fix my no start issue. After further testing it revealed that the smart junction box is bad, so another $260 but hopefully will have it back tomorrow. I asked them to find out from the tech what may have caused this. I was a previous Ford Tech but wasn't the diag guy so its beyond my scope.

Bedrck47 · Nov 4, 2014

Post as much information as possible as it may help others in the future Thanks

Bedrck47 · Nov 5, 2014

I wouldn't be surprised if the dealer were to inform you that the SJB didn't solve the problem and the next item that would need to be replaced is either the PCM or the Inst. cluster.

tpndrcn · Nov 5, 2014

roxy1225, Fortunately the Smart Junction Box fixed the issue!, $530 later. My question would be what caused it all to go bad. I read that the junction boxes had issues, and also that leaking windshields can cause them to go bad. To the best of my knowledge this wasn't an issue , but maybe I was the luckly one with a faulty S.J.B.

stamp11127 · Nov 5, 2014

The possibilities can be just about anything. If there are logic circuits on the SJB then overvoltage or excessive current from a jump start can take ic's out. Not saying it did - just a possibility.
Poor design, poor manufacturing quality control, inferior parts etc.

Did they return the old parts to you?

Bedrck47 · Nov 5, 2014

thank you for the update
Glad its fixed and running
Would agree with what stamp11127 says about causes

tpndrcn · Nov 6, 2014

No I didn't ask for the old parts, and I can agree with what stamp11127 says because with my past experiences as a tech we replaced parts as neede that just went bad, for unforseen circumstances. I found some information on SJB having issues. I am glad to have it back, I love driving it!

Bedrck47 · Nov 6, 2014

what was interesting was that you were first told it was either the PATS transceiver or the Instrument cluster and when the transceiver was replaced you were then told the SJB needed to be replaced.

I would question if the transceiver was truly bad or if it was the SJB all along.

Some information that I have found is that the SJB is also referred to as the GEM. Found that information in the 2009 workshop manual

tpndrcn · Nov 7, 2014

I wonder about the PATS transceiver actually being bad too, because they said the pinpoint test leads through it and it was saying its bad, however if the sjb was bad and wasn't supplying it , it would fail test in my opinion

Anti-Theft Unexpededly Activated

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