Our Jeep fault code scanner is Windows based and should work on Windows XP and greater. Be mentioned that diesel and gasoline Jeeps codes do not match – if you have 2.7 CRD, then do not look fault code explanations for gasoline models. Since this is Mercedes engine, many codes are same that in MB. Be mentioned that diesel and gasoline Jeep fault codes are different, so if you look from the web, then only look 2.7 CRD codes. You can check explanations at or just google them, there are a lot of tutorials on the web.

There is no explanation of the codes in the diagnostic program, it just shows what fault codes are stored in your car’s engine/gearbox. Other modules – ABS, Body, Instrument etc., are not supported. This new software can read engine and transmission fault codes and also cleared them. ELM327 is also pretty cheap, genuine ELM327 that uses genuine ELM chip issued by ELM Electronics costs about 50 EUR, Chinese USB clone (non genuine) costs about 10 euros in ebay and every car owner can afford it.Ĭurrent version is Windows based and works with ELM327 adapter. If you need more serious diagnostic software, then WJdiag Pro is for you, it can access to every Jeep 2.7 CRD control module and have all options – fault codes, Live Data values, functions coding etc.įor hardware we chose ELM327 diagnostic scanner as it supports all OBD protocols and is compatible with 99% of modern cars. 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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