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Transponder key testers?

  • Cheryl
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29 Aug 2019 19:59 #33280 by Cheryl
Transponder key testers? was created by Cheryl
Does anyone have any testers to test if the transponder is good in a key? I am working on a Ford F-150 and getting a b1681 and don’t want to drop money on keys and don’t fix the issue plus I’d be able to add to my tools I already have

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30 Aug 2019 11:11 #33293 by Andy.MacFadyen
Replied by Andy.MacFadyen on topic Transponder key testers?
I haven't seen anything that checks the response from the transponder chip but I have the tool that checks if the coil round the key barrel is transmitting when a key inserted

www.scannerdanner.com/forum/diagnostic-t...-purchase.html#23557

The DIY version is wrap a few coils of fine wire round the key and connect one end to scope + the other to ground with a fast screen you should see the coil on the car transmitting.

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  • cheryl hartkorn
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01 Sep 2019 17:03 #33349 by cheryl hartkorn
Replied by cheryl hartkorn on topic Transponder key testers?
i have that same tool i used it on a 2004 f150 inserted key turned it led flashed okay cool tranciever is good. led me on a chase. it ended up being a bad ground at the module that goes around the lock cylinder.

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