How to Check DTCs w/Out a Reader
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I just came across this and thought it would be great to pass on to those that may not be aware of this little capability that JKs seem to have built-in to their system.
http://project-jk.com/jeep-jk-write-...what-they-mean
http://project-jk.com/jeep-jk-write-...what-they-mean