Our Jeep fault code reader / cleaner software will never be sold for money, It is free forever – to everyone. It is mainly for people who sometimes like to fix their car in their home garage. Our goal is to help the car owner to quickly view and erase fault codes without the need to run to workshop and pay money for it. Our Jeepdiag and WJdiag Free software is very basic and is not comparable with professional diagnostic equipment. So we made our own diagnostic software and designed it to read/clear Jeep WJ CRD engine and transmission faults. So we decided to make a free diagnostics software that is compatible with 2002-2005 Jeep Grand Cherokee 2.7 CRD and that would work with a cheaper device. Those devices are pretty expensive and not reasonable to buy for private use. Until today they were correctly read out and cleared only with DRB III and Bosch KTS diagnostic devices. Sometimes car will clear faults itself after replacing faulty part and driving couple of kilometers twice, but not always.

Also disconnecting battery will not clear fault codes on 2.7 CRD Jeep Grand Cherokee. It is possible to see engine fault codes with key on-off method, but you can not clear faults without correct OBD diagnostic tool. Many of our customers have a huge problem with reading out Jeep Grand Cherokee 2.7 CRD fault codes. You can read WJdiag Pro user manual from

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