You can read WJdiag Pro user manual from https://jeepswj.com/wjdiag-tutorial/
Many of our customers have a huge problem with reading out Jeep Grand Cherokee 2.7 CRD fault codes. It is possible to see engine fault codes with key on-off method, but you can not clear faults without correct OBD diagnostic tool. Also disconnecting battery will not clear fault codes on 2.7 CRD Jeep Grand Cherokee. Sometimes car will clear faults itself after replacing faulty part and driving couple of kilometers twice, but not always. Until today they were correctly read out and cleared only with DRB III and Bosch KTS diagnostic devices. Those devices are pretty expensive and not reasonable to buy for private use. 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. So we made our own diagnostic software and designed it to read/clear Jeep WJ CRD engine and transmission faults. Our Jeepdiag and WJdiag Free software is very basic and is not comparable with professional diagnostic equipment. 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. It is mainly for people who sometimes like to fix their car in their home garage. Our Jeep fault code reader / cleaner software will never be sold for money, It is free forever – to everyone.
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.
For hardware we chose ELM327 diagnostic scanner as it supports all OBD protocols and is compatible with 99% of modern cars. 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.
Current version is Windows based and works with ELM327 adapter. This new software can read engine and transmission fault codes and also cleared them. Other modules – ABS, Body, Instrument etc., are not supported. 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. You can check explanations at https://jeepswj.com/tips/ or just google them, there are a lot of tutorials on the web. 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. Since this is Mercedes engine, many codes are same that in MB. 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.
Our Jeep fault code scanner is Windows based and should work on Windows XP and greater. We tested it on 32-bit XP, 64-bit windows 7, Windows 8 with ELM327 USB versions and Windows 8.1 Tablet with genuine ELM327 BT version and it works perfectly. This software connects with ELM straight to COM port and if you use BT version, then you should pair ELM327 and connect it with your computer before using our program. Also be sure that you have BT drivers correctly installed on your computer.
You need to have Microsoft .NET Framework 3.5 or greater installed on your computer. Most computers already have it.
Android version working with Android 4.3 and up.
There are problems with Chinese BlueTooth ELM327 clones. It is true that the ELM is only as good as it’s user. Genuine ELM is well made and can communicate through all OBD II protocols and is only limited by its user’s wisdom to use all ELM options. Different case is with Chinese clones – there are nice labels on those devices “Supports all OBD II protocols”, but real life is different. Newer Chinese devices are different from what they used to be. They used to copy ELM chips, but now they made a new device with their own firmware for chips inside the device, added some major protocols and called it ELM327. Those devices do not support necessary commands for ELM configuration and some of them even does not support necessary protocols. Chinese devices are working with some diagnostic software like Scanmaster ELM or Torque PRO on many car models, but 2.7 CRD Jeep ECU and TCM data transfer is much more complex and newer clones are not supporting them. This is the reason why our diagnostic software does not work with many Chinese ELM327 devices. Older Chinese USB clones seem to be working well with our software, problem is with many newer devices. We cannot do anything about this. With problematic ELM327 device you will get answers: Fake ELM.
China is a country of surprises and you’ll never know what you get – working device or garbage. At the bottom of this page you can find some feedback and we are pretty sure that those who can not get our diagnostic software to work, are using fake ELM device. Avoid Chinese ELM327 clones, they are not working correctly! ELM327 BT and USB with original chip are working fine. If you want to be sure, buy a device with genuine ELM327 chip.
Configuration commands that ELM must support are:
AT SP 5
You can ask about those commands from seller before buying Chinese ELM device.
There are only a few places in EU where you can buy genuine ELM327 device. We found one from Romania and we bought one BT ELM327 device for testing. Now we can confirm that this device supports all necessary ELM commands and works fine with our software. Here is an image of this ELM327.
Other seller of good ELM327 we found is located in Australia. Prices are a little cheaper and we tested their Bluetooth device, working well, it is fast and stable. It is really good device, but EU delivery may take 3-4 weeks. Website is https://www.totalcardiagnostics.com/elm327-bluetooth/
Recently we find out that Chinese device called Viecar BT 4.0 working fine as well. It is cheap device, price in Aliexpress is about 10 eur, EU prices for same device are higher, 20...40 eur. Image of Viecar BT 4.0 is on up side of this page. If you decide to buy Viecar device, then get exact match with this image (white device on top), because Viecar makes many ELM327 devices and other models will not work.
We are finished with WJdiag Pro and uploaded it to Google Play. With WJdiag Pro you can access to every control unit of Jeep Grand Cherokee 2.7 CRD. Pro version has a lot of opportunities and can help with fixing any electrical problem. Pro version is available for purchase. You can find short tutorial of WJdiag Pro from https://jeepswj.com/wjdiag-tutorial/
WJdiag Free will stay free for everyone. With free version you can read and clear Engine and Transmission fault codes. Faults are shown with code and explanation.
WJdiag is working only with BLUETOOTH ELM327 device.
Jeepdiag does NOT work with WIFI ELM327.
WJdiag Free and Pro working with WiFi from version 13.0
Download WJdiag Free – Simple diagnostic software for Jeep Grand Cherokee 2.7 CRD - Android(8618 downloads)
Download JeepDiag - Free and simple diagnostic software for Jeep Grand Cherokee 2.7 CRD - Windows(19652 downloads)
If you would like to get previous version of simple JeepDiag for Android, then it will stay available. With JeepDiag you can read and clear engine and transmission fault codes. Fault codes are shown without code explanation, but this tool is enough if you just want to clear them.
Download JeepDiag - Free, old and simple Jeep Grand Cherokee 2.7 CRD fault clearing for Android(16502 downloads)
Works with Android 4.3 and up.
Here are some images of Windows based JeepDiag:
|Here you can see how engine fault codes are displayed - only codes and no explanations.|
|Clearing Jeep engine fault codes. After clearing the codes, you will see which codes were cleared and which not.|
And below are some images of Android based JeepDiag:
|After connecting ELM327 you will see menu lines. Read Engine and Read Gearbox will read fault codes without deleting. Clear engine and Clear Gearbox will display fault codes and clear them automatically.|
|Your Jeep fault codes will be cleared and you will see if any of the codes are not deleted - if some fault code stays, then problem is not fixed and you need to replace/fix broken part.|
Here you can comment our software. This form is only for commenting on how our program works, if it is fine or did some problem occur. We appreciate any feedback, even if our program will not work as expected. In comment please specify what kind of ELM327 are you using, so everyone will know which version works and which not. All links of working devices are welcome as well. All feedback will be displayed bottom of this page, so everyone can see them.
For any questions, please use form on “contact” page.
15. April 2021 09:14
I have a question, about injector learning and how to count fuel correction (may be update manual, with more detailed explanation) - a lot of questions on this topic.
Other one is, how to messure cylinder pressure - i it possible this way... or only manual pressure test? :)
I have error and application termination upon dashboard acsess. But i have UK model, maybe this helps.
9. April 2021 09:34
15. March 2021 17:00
2. March 2021 19:56
24. February 2021 16:49
Gracias, espero noticias suyas lo antes posible
14. February 2021 10:46
Technically, firmware upgrades can be added to WJdiag, but we will not add it due to many poor ELM327 devices. Firmware upgrade requires data transfer without any mistakes and ELM327 is not so good device. Many WJdiag users are using poor ELM327 devices that may miss some data during upgrade and it will cause faulty control module.
14. February 2021 10:24
30. January 2021 19:10
Was der Jeephändler nicht geschafft hat ist dank euch jetzt behoben.
Leiterplatte war nach 2 Tagen perfekt verpackt da, eingebaut, Fehler gelöscht, Granny schnurrt wie am ersten Tag. Vielen Dank
9. January 2021 12:14
2. January 2021 14:00
How much it cost the pro versión of your software? I have a Cherokee 2.7 CDR and need yo clear codes. Thank you
25. September 2020 14:59
15. September 2020 21:24
26. August 2020 16:53
Access with Windows is possible- no response via Android and wjdiag Pro.
9. August 2020 08:46
5. August 2020 09:46
WJdiag Pro is available in Google Play market
5. August 2020 09:19
31. July 2020 18:01
16. July 2020 10:33
And I didn't understand how to count the correction difference. How do cylinders work? 1-2-4-5-3?
1 injector -0.32
2 injector 0.45 => 0.77
2 injector 0.45
4 injector -0.09 => 0.54
4 injector -0.09
5 injector 1.01 => 1.1
5 injector 1.01
3 injector -1.02 => 2.03
Am I right?
2. July 2020 22:03
26. June 2020 18:21
5. May 2020 19:21
28. April 2020 14:27
20. April 2020 23:50
For wj 2.7
I'm not able to access some functions of the jeeep diag pro
8. April 2020 17:05
6. April 2020 07:24
Pour Wrangler, vous devez utiliser wiTECH MicroPod ou obtenir OBD JScan sur Google Play.
No, WJdiag will not work with Wrangler JK, it is made for WJ 2.7 CRD only.
For Wrangler, you should use wiTECH MicroPod or get OBD JScan from Google Play.
6. April 2020 05:56
Je serai interesse mais mon moteur est 2.8L CRD sur WRANGLER JK 2017
Cela fonctionnerait il ?
Merci d une reponse
4. April 2020 19:22
3. April 2020 15:56
7. March 2020 15:59
Miguel Angel Fiestas
Los errores si los lee y borra sin problema. Por ejemplo, Torque si lee bien estos datos.
24. February 2020 10:48
23. February 2020 14:52
18. February 2020 16:27
8. February 2020 07:35
Miguel A. Fiestas
Good app, good world, good price.
7. February 2020 07:57
programming the injektor Code?
28. January 2020 19:59
24. January 2020 11:33
Engine and transmission are using for diagnostic ISO 14230-4 KWP and all other modules are using J1850 VPW data protocol. Seems your ELM327 does not support J1850 data transfer and you should replace it. For example those ELM327 devices are working fine with Jeep:
24. January 2020 11:15
20. January 2020 18:36
Pero una vez dentro indica que NO es compatible para el software de jeepswj
18. January 2020 10:45
18. January 2020 10:36
18. January 2020 10:31
14. January 2020 18:15
I have purchased EML327 wired off amazon but when I try to connect it says No EML327 Connect to com Port?
9. January 2020 18:35
The engine of my Grand Cherokee 2.7CRD kept cutting out under power, but would always restart after coming to a stop and toggling the ignition, most frustrating and dangerous when over taking!!. To cut a long story short the problem was down to the fuel filter, once replaced no more cut-outs. I had obviously run the diesel low at some stage and the sediment in the tank had been sucked into the filter.
Just another check to make before lining the dealers pocket with even more cash
9. January 2020 09:43
PCB received and fitted very easy to do
2 weeks now and the it's like a new vehicle
So glad I replaced the unit after over a year of trying everything else, perseverance, deliberation and frustration the problem is fixed
I'm so happy, thank you for everything
I have confidence in the vehicle and its reliability
Your website is a blessing for anyone seeking the only fix for the transmission fault.
7. January 2020 17:26
28. December 2019 10:59
I buy an ELM327 on eBay. The same of the picture on your site. But I launch your software jeepdiag, it is written this fake elm. And I would buy a veritable elm on the site ELM327.en but it’s written the nos isn’t compatible whit your software.
Which one should I buy?
I have a default code P0702 and P0703.
It’s very important please
24. December 2019 09:41
Can it performe a ABS test and the bleeding procedure for the ABS module?
Thanks in advance.
21. December 2019 13:35
20. December 2019 07:38
Ist es egal welches ich kaufe?
18. December 2019 08:07
All the best from Australia,
17. December 2019 10:26
16. December 2019 09:42
I have paid for the PCB for the shifter thank you
Im trying to use the WJ Diag pro on Windows laptop...(i dont have and android device) i can connect to the ELM327 with the old free windos version but i cant connect with the WJ pro i used bluestacks to have access to the app. i am paired via blue tooth but its not working in the app it says turn bluetooth on... i cant see how to pair/connect via the pro app?
what do you suggest?
15. December 2019 22:04
Thank you for you helpful and informative web site.
I am experiencing P2210 (TCM) with P0702 and P1242 (canbus message missing) (PCM)
I am seriously considering buying your shifter module.
In your experience what is the correlation P1242 with P2210 is there something else I’ve overlooked?
13. December 2019 12:07
21. November 2019 06:16
Di solito l'auto guida bene dopo aver sostituito la parte rotta, ma a volte è necessario cancellare i codici di errore del motore e della trasmissione per uscire dalla modalità Limp. Dipende da quanto hai guidato con la parte rotta. Hai sostituito la scheda del cambio, ma sembra che non hai cancellato i codici di errore e la macchina rimane in modalità Limp.
Solo i dispositivi diagnostici compatibili per questa vettura sono Chrysler DRB 3 (dispositivo del rivenditore), Bosch KTS (dispositivo generico, molte officine ce l'hanno) ed ELM327 (dispositivo comune) con il nostro software WJdiag gratuito oa pagamento. Tutti gli altri dispositivi diagnostici non possono accedere correttamente a questa vettura o mostrare risultati errati. Se non si dispone di uno di questi dispositivi, chiedere all'officina locale se dispone di uno di questi dispositivi diagnostici, quindi l'officina può eliminarli. La cancellazione dei codici difetto richiede pochi minuti e non dovrebbe costare molto.
21. November 2019 06:13
Other issue is that Scantool have bug in their devices and STNxxxx devices will not work with Jeep. I talked about this bug with them, but they are unable/do not like to fix it.
21. November 2019 03:09
20. November 2019 21:34
20. November 2019 12:10
15. November 2019 02:53
I'm finding the JeepDiag Pro very useful.
My ELM327 tool can read passenger door, but doesn't read Driver's Door. Would this be prob with my ELM327 tool or something else?
Can't get any function to work from Drivers Door controls, yet the windows, for example, will work using Diag tests on passenger door - but can't access DD control. Any suggests?
28. October 2019 11:49
Thanks for the reply.
All my numbers look correct but car cuts out at high revs under load. I have replaced low and high pressure pumps and injector leak back test all looks ok. Is there a test I can perform to narrow down the problem do you think?
28. October 2019 08:46
287 bar is fine. I made comparison tables with our test cars from engine Live Data values, they are located at WJdiag user manual page at https://jeepswj.com/wjdiag-tutorial/
28. October 2019 07:35
I purchased your pro software and its ace, for the small amount of money it costs I would recommend to everyone! I am constantly getting a P1130 error - small leakage detected. DO you know what a standard fuel rail pressure is on tick over? Mine is 287 bar....any ideas?
8. September 2019 12:07
26. August 2019 21:37
Great app, thank you Kaido. Injectors test is very helpful (now I know that my huge black smoke does not come from them...!).
Does anybody knows how to check the good working of the EGR actuator with this app? Thank you for your answer(s)!
Olivier (from Nice, France)
25. August 2019 08:27
I love your side, here i‘ve been found so many helpful tips and your PCB works gratefully.
But there is only one thing i need to know.
Is a WJdiag pro availabel on windows? I don‘t use android...
14. August 2019 17:28
5. August 2019 21:03
15. June 2019 19:39
Android does not support OBD data transfer through USB and we can not add such option to Android.
We will not make Windows version of WJdiag Pro, because it needs a lot of programming time. Instead of making new version, we are focusing on upgrading current Android version of WJdiag Pro.
15. June 2019 15:39
10. June 2019 21:45
habe ein android tablet (7.0), elm327 bluetooth v1.5 und wjdiag pro gekauft. immer wenn ich mein wg 2.7crd scannen möchte, reagiert das inteeface nicht oder baut keine verbindung auf. jetzt habe ich elm327 usb gekauft und wjdiag auf widows instaliert. und auch da wird kein interface erkannt. mit drb3 konnte der wg problemlos ausgelesen werden.
4. June 2019 16:48
28. May 2019 06:06
28. May 2019 03:45
27. May 2019 11:46
Had the 'black death' with sever leaking injectors. Seats cleaned and re-cut. New washers and bolts. Car now cuts out when going over 2,000 rpm and get a p1130 error. I get no errors when ticking over or under very light load. It ran fine before so assume injectors are not faulty.however I have used your software and got the following readings:
cyl 1 fuel - -0.40
cyl 2 fuel - -1.01
cyl 3 fuel - +1.50
cyl 4 fuel - +0.93
cyl 5 fuel - -1.03
They are not spot on but not too far apart.
Also I have the following:
RPM - 750 rpm
Fuel pressure regulator output - 88%
Fuel rail pressure Actual - 236 bar
Fuel pressure set point - 278 bar
Mass airflow - 541 Mg/s
Mass airflow voltage 2.18v
Thank you as always
27. May 2019 10:57
25. May 2019 13:20
18. May 2019 13:09
8. March 2019 13:45
I bought the WJ diag Pro software but cant find how to turn ON FULL HIDRAULIC FAN.
Is there a option ?
26. February 2019 07:49
If you can not read engine data, then probably issue is with your ELM327 device. Please try to connect again and after few attempts send log file to us for examining. Log file can be sent through settings page (3 dots on top right on the screen).
25. February 2019 23:01
I bought the WJdiag Pro app. In my 2.7, the CRD does not read the engine data. What should I do?
23. February 2019 19:55
Скажите пожалуйста, возможно вы сталкивались с такой проблемой.
При наборе скорости, в диапазоне оборотов двигателя 1800-2000 происходит вибрация двигателя похожая на пропуск зажигания на бензиновым двигателе. Ошибок нет. Особенно сильно вибрация ощущается на холодном двигателе. Не один специалист не может найти причину. И я заметил что очень много wj страдают этой проблемой.
15. February 2019 00:28
7. February 2019 16:42
You need to install USB drivers for COM port. Usually Windows will install drivers itself, but if not, then you need to install them manually. Check at CD disk you got with your ELM327 device, there should be a folder with drivers on the disk. After installing drivers correct COM port will appear to COM ports list in JeepDiag.
6. February 2019 06:23
I have a elm327 plug connected with usb. Your program is not able to find the com port my usb cable is connected to? I can use a usb connected ELM?
1. February 2019 10:49
31. January 2019 08:49
If you buy program, then there is one time payment for purchase and after this you can use WJdiag on single device as much you want and no extra payments are required. If you change your Android device, then you can make backup from old phone through Google and WJdiag will be transferred to new device for free. You need to have Google Play account for this.
30. January 2019 20:02
10. January 2019 12:19
9. January 2019 21:11
9. January 2019 17:37
Vielen Dank schon Mal.
5. January 2019 21:25
2. January 2019 19:52
With WJdiag Free you can read and clear engine and transmission fault codes, nothing else.
With WJdiag Pro you have access to all modules your car has, like ABS, body, doors, parking sensors etc. Every module has different options like senor Live Data, Input-Output values make some coding etc.
2. January 2019 09:05
Thank you for developping this tool ?
What is teh difference between basic WJdiag and Pro WJdiag ?
My ELM327 device does not support wifi or bluetooth, so I can't use pro android software. Would you have a windows version for Pro WJdiag ?
Have a good day.
18. November 2018 13:58
Measuring must be done with warm engine, injectors must be equal, few examples:
Some injector has +2 and some has -2.3, total difference is 4.3, it is too much and injectors should be replaced.
Some injector has +2, other +1,8 etc., total difference 0,2 is pretty good, no need to replace injectors.
If injectors are not equal, then car can smoke, fuel consumption is high, engine is not running smoothly, in extreme situation car may not start.
Total difference 2 or less is not a big problem and car can drive well.
Injectors have codes 1, 2 or 3 stamped on case. To get best performance, same values should be coded into ECM, it can be done through Engine Tests, Injector Learn. Just place correct codes shown on right side and save.
There is a little trick to optimize fuel consumption with old injectors through changing codes in ECM. With warm engine drive on flat road with cruise and check fuel consumption on ceiling console. Change code on injector you think is working incorrectly and compare fuel consumption again. To get correct results, fuel consumption must be reset from ceiling console every time you are measuring. With such playing fuel consumption can be reduced up to 2 L/100km (best result I know), depends on injector conditions. Of course results can be reversal if initial settings were most optimized, so better is to remember settings before coding.
17. November 2018 11:25
Great product thanks for taking the time to develope it.
One question, can a injector relearn be performed to optimize the injectors in there current condition? If so does it give you step by step instructions on how to do this?
15. November 2018 17:55
14. November 2018 01:34
Purchased it, too!
Any chance of doing a WJ interface for the Torque app? I'd buy that too.
14. November 2018 01:25
Can you please post a link to WJDiag Pro in Google Play? I cannot find it.
13. November 2018 21:03
12. November 2018 15:04
Der Download funktioniert leider nicht bei mir mit Windows sieben. Können Sie mir bitte behilflich sein.
Vielen Dank vorab.
Mit freundlichen Grüßen
11. November 2018 21:13
wj diag pro free time over ?
combien de temps avant la prochaine mise à jour
8. November 2018 18:36
7. November 2018 11:58
Diagnostic software is made for WJ 2.7 CRD and it is working with your car.
We are not making diagnostic compatible for MacBook, sorry.
At the moment you can not use Android device with WiFi ELM327. You can use basic app with WiFi adapter if you have Windows computer and can use some additional port redirecting software like HW VSP.
6. November 2018 21:10
6. November 2018 20:38
5. November 2018 22:03
3. November 2018 10:07
3. November 2018 10:01
3. November 2018 09:58
File is updated and you can download it again.
2. November 2018 15:26
1. November 2018 20:12
J’ai ma jeep qui affiche comme code :
;P0110 / P0620 / P1130 / P0606 / P0340 / P1685 / P0530. Je souhaiterais être informer de leurs signification...
22. October 2018 09:57
You can download software from upper side on the same page. Your Android device must allow third party apps installation, it can be changed from security settings. If you are unable to download it, then send me your email through contact form and I will send you direct links.
22. October 2018 08:36
15. October 2018 18:14
14. October 2018 21:00
14. October 2018 20:50
14. October 2018 10:56
14. October 2018 08:37
11. October 2018 15:19
10. October 2018 07:54
19. September 2018 12:49
9. September 2018 12:40
i would like to use the pro version but i own only a usb elm..it is possible to use a emulator on laptop to use the mobile app then connect the elm to usb?
7. September 2018 11:02
5. September 2018 19:20
If injectors are worn out, then playing with codes can make engine run smoother and save fuel economy.
5. September 2018 06:31
now You've added the fuel injection parameters. Great!
Just wonder what is the logic (manual) for injectors learning option?
24. August 2018 20:36
24. August 2018 17:29
What are the chances that you have software to read and reset faults for
Cherokee KJ 2004 2.8 disell
22. August 2018 06:17
21. August 2018 12:34
12. August 2018 05:28
31. July 2018 07:11
30. July 2018 18:06
thanks a lot!
21. July 2018 19:06
j ai installer votre logiciel sans probleme.
j ai utilise sans probleme et apres plusieur mois ,il ne fonctionne plus impossiblede connecter eml 327
13. July 2018 11:37
(Бесплатное время вышло)
12. July 2018 06:13
I have used both versions with great success. Now the Pro version gives "free time over" despite reinstalling it.
The only thing I missed in Pro was fuel injector parameters (fuel correction) - this option would give great value to Your program as would help to diagnose faulty injectors which sometimes is a case on these old machines. Other wise the program is great tool.
8. July 2018 12:17
27. June 2018 06:21
21. June 2018 06:54
Yes, diagnostic works well with Romanian ELM327 on every 2.7 CRD Jeep, including 2002 and 2004 year.
20. June 2018 18:24
Diesel sollen ja erst ab EZ 2004 unterstüzt werden.
14. June 2018 12:44
I upgraded file with new date and it is working again. Just download it again and reinstall.
14. June 2018 10:33
is it possible to contribute?
I'm a programmer and I would like to add the compatibility list to the WJ 4.7 model.
13. June 2018 13:48
13. June 2018 10:55
je n arrive plus a utiliser jeep diag pro un message free time over j ai télécharger de nouveau l application mais toujours pareil existe t il une solution
11. June 2018 13:35
31. May 2018 15:37
merci de me renseigner
23. May 2018 06:39
I love to use this app but unfortunately app I have on my phone has expired so I delete it. I download new one from this site but I can't install it. Am I doing something wrong? Pls help
16. May 2018 16:09
It is only in English site.
16. May 2018 16:03
je ne trouve plus jeep diag pro sur le site existe t il toujours ?
11. May 2018 15:28
je reçois ce jour l'interface commandé sur le net. Mais l'appareil me renvoie le fameux message « Communication error? Fake ELM! ». Pas de bol, je suis tombé sur un modèle qui ne convient pas. Certes je ne l'ai pas payé très cher, mais s'il faut en commander une douzaine pour en trouver un qui convient... Vous avez une astuce ?
9. May 2018 17:08
It has been working well for over 3 years now and has restored my car to full use
Great product and advice
19. April 2018 14:10
Il mio adattatore ODBII è wifi e non bluetooth.
15. April 2018 18:49
Until it is in development stage, it can not be bought. I am upgrading installation apk file in time and after time of your version is out, then just download app again and you will get newest version.
15. April 2018 18:09
I use JeepDiag Pro and it was working perfectly
but i have time out on softwear
How can i buy a full softwear
29. March 2018 08:48
quand je démarre jeep diag sur XP
j'ai à l'affichage :
l’application n’a pas réussi à s'installer correctement
(0xc0000135). cliquez sur ok pour arrêter l'application.
jeep diag fonctionnait il y a deux moi sur ce pc .
et il ne sert qu'à ça et à rien d'autre.
pouvez vous me guider pour une solution.
merci par avance.
28. March 2018 19:44
Jeep gasoline models are using Chrysler SCI data bus for Engine and Transmission diagnostic, but ELM327 does not support it. Unfortunately there is no other low price device in the market that is Chrysler SCI compatible and we should develop new device for it. Probably we will not do it.
All other modules like ABS, body, doors, media, parking aid etc. should work with current app.
28. March 2018 15:23
Do you have forecast to develop a version to work with WJ 4.0 gas?
Can I help you?
10. March 2018 22:30
The Romanian site does not provide the ELM 327 in usb. Do you have another link or the software works with a box in usb?
10. March 2018 20:17
10. March 2018 20:13
10. March 2018 10:53
Our Jeep diagnostic software does not work with iPhone and WiFi ELM327 device. You can use Windows computer with WiFi ELM327 if you have some port redirecting software installed like HW VSP. It will redirect WiFi TCP/IP traffic to COM port.
Clearing P0702 from Engine only does not have point, because if some fault remains in Transmission, then in next start TCM will report about it to ECM and P0702 will appear again. 'First clear Transmission faults and then clear Engine ones.
10. March 2018 09:02
Nachdem ich das ELM 327 Interface bekommen habe und ihre Software auf meinem PC installiert habe komme ich nicht in den Jeep hinein.
wo liegt der Fehler?? was mache ich falsch???
Bitte um genaue Vorgehensweise beim Fehlerauslesen!!
danke im Voraus .
MFG. Hermann Hofer
8. March 2018 14:46
I bought a replacement PCB from a dealer in the UK (one of your boards) and fitted it, but the issue is still present (limp mode and engine managment light still on), I bought a Wi fi ELM 327 reader from the site recommended below and have used it with my I phone to try and clear the fault code (it immediately reappears) and read the error code using the Auro Doctor app.
I am unable to get any fault codes using the ELM 327 reader and app. Do you have any ideas what can do please?
24. February 2018 10:20
15. February 2018 15:07
Etant plutôt novice en informatique, mais mécanicien dans l’âme
J'aime bien effectuer les réparations de mon jeep grand cherokee 2,7 CRD.
Mais quel modèle choisir en sachant que j'aimerais le brancher sur mon portable donc sous androïd et me faut il des fiches ou cordons pour l'adapter si oui, lesquels? Merci ,de votre réponse.
11. February 2018 19:10
1 It would be nice if we can change data like EGR.
2 At mew software
Missing an option to reset faults
4. February 2018 01:59
Felix aliaga mamani
3. February 2018 11:07
2. February 2018 11:43
24. January 2018 09:25
Ich habe mir aufgrund der Empfehlung das BT ELM327 zugelegt. Mit der Jeep App funktioniert es auch anstandslos. Danke für die gute
Beratung. Gibt es eine App oder ein Programm, mit dem ich tiefer
in die Diagnose beim Cherokee einblicken kann?
19. January 2018 13:48
18. January 2018 06:09
The pro version has now expired.
How can I purchase it?
10. January 2018 07:40
Fabrizio, WiFi ELM327 will work only with Windows computer if you are using some Com port redirecting software.
9. January 2018 09:42
6. January 2018 12:25
5. January 2018 13:02
You can use only Bluetooth ELM327.
Andrew, OBD socket have +12 volts without ignition and you can hold ELM327-phone connection, but all car modules are switched off and you can not make any diagnosis.
4. January 2018 10:02
( para telefono android )
1. January 2018 17:45
Can the connection be kept alive with the ignition off?
26. December 2017 13:04
24. November 2017 16:38
24. November 2017 13:55
23. November 2017 19:03
23. November 2017 07:34
I do not have software for 96 model, sorry about that.
23. November 2017 06:04
Ich hab des öfteren Getriebefehler zu löschen, mit meinem Gerät kann ich aber nur die MKL löschen.
14. November 2017 16:37
I install the JeepDiag APP on my mobile (Galaxy s8)
Till Last week the APP work perfect
Start today, the APP close automatic and stop
I can not run the APP
I enable the download and the install the APP on my mobile
8. November 2017 17:28
Juan José Rissotto
17. October 2017 12:15
15. October 2017 12:58
Leur logiciel ne fait rien car le véhicule est trop ancien pour lui (GC 2,7 de 2002).
Mais avec votre logiciel re-initialisation les doigts dans le nez en 1 minute !
10. October 2017 09:39
I have an ELMScan 5 with an ELM 327 Hardware Revision: 3.2 and Firmware Revision: 1.2a.
It's original with RS232 output, but I have a cable from RS232 to USB to my pc.
It communicates nicely, but comes with a mistake. FAKE ELM327 is that the Firmware that's too old?
Will there be a software ver. for iPhone or iPad sometime?
26. September 2017 17:55
bravo pour ces explication ,
mon véhicule , grand cherokee WJ 4l , 6 cylindre
vous me conseillez
le elm BT sous android , ou usb sur pc
16. September 2017 21:17
For some reason this app was not able to communicate with my transmission. These guys are working on a new app which I was able to test. The new app communicates just fine with the TCM, and now my Jeep is on the road again.
Don't be afraid to send them an email, and make shoure to give a donation. They're saving you a lot of money;)
14. September 2017 18:29
Just received the BT ELM327 v2.2 from Romania today(www.elm-327.eu). I want to access the gearbox, as i have the P0702 error code on my 2002 Jeep GC 2.7 CRD.
I tried your software on Android and 2 different Windows 10 PCs, but none of them were able to read or clear the gearbox. It was able to read and clear the ECU on all devices though.
Any ideas on how to solve this?
8. September 2017 13:36
upload drivers into the device manager and all is ok
8. September 2017 10:59
: on this com port no correct elm connected!
thank you for giving me solutions.
8. September 2017 10:16
I am very dissatisfied!
I ordered and received usb elm 327 from Romania.
to connect to your software is impossible!
your software only offers one COM 3 port, and I can not connect to the PC.
I have yet to download drivers usb on
the software tells me that I am not connected to com 3.
how to do.????
it is a situation that costs me dear and that does not solve anything and that lasts in time !!!
I tried with two pc (windows 7)
and it's the same problem !!
thank you for following up on my message.
7. September 2017 13:14
J'ai essayé avec une copie chinoise à 10 euros, et ça ne fonctionne pas.
MERCI! C'est génial de pouvoir effacer les codes défaut moteur + boite avec un simple téléphone : qui peut en dire autant?
28. August 2017 17:40
22. August 2017 21:14
21. August 2017 12:24
20. August 2017 11:51
renvoie un code errors fak est t il possible que ma prise diag ne fonctionne pas merci de votre reponse
2. August 2017 11:31
12. July 2017 21:39
I've seen on comments you have worked on a live data reading application. Can you send it to me?
4. July 2017 04:14
16. June 2017 04:54
Merci pour votre appli, elle est au top.
J'ai des soucis de démarrages aléatoires.
Vous n'avez pas de solutions pour pouvoir lire les valeurs en temsps réel sur PC?
29. May 2017 11:25
29. May 2017 10:53
22. May 2017 07:40
Perfect conection with ELM from Romania (use usb version, just need install the correct drivers)
Easy to know errors and clear them
13. May 2017 15:41
12. May 2017 21:44
Est-ce qu'il y a un module de diagnostic pour G Cherokee WJ modèles 1999-2001? Si oui pourriez-vous m'aiguiller la dessus.
5. May 2017 18:26
5. May 2017 18:17
Tried a cheap Chinese cable but a waste of time, I recommend you buy one from these Romanian guys!
Thanks for developing this diagnostic software, a beer (or two) is on it's way!
28. April 2017 19:30
Leider bekomme ich immer die Meldung: On this Com Port no correct ELM connected!
Treiber i.O., ELM327-Clon, funktioniert bei anderen Marken mit ForScan, Carsoft demo, etc.....
Was kann ich tun, damit JeepDiag mein Elm erkennt?
Grüße Alex R
14. April 2017 13:53
14. April 2017 10:45
25. March 2017 21:45
25. March 2017 21:30
17. March 2017 19:17
Sinon il fonctionne, reste à voir si après réparation de ma panne il parviendra à rétablir le bon fonctionnement de ma voiture en effaçant les codes défauts.
15. March 2017 16:03
15. March 2017 11:22
kann ich diese Software auch für meinen Jeep Grand Cherokee BJ. 2000, 4l,nutzen?
Ich will Motor- und Getriebe-Codes auslese und löschen können.
9. March 2017 18:22
5. March 2017 12:07
5. March 2017 10:49
21. February 2017 17:31
j'ai le code d'erreur atwm8120f33e not supported by ELM
Communication error? Fake ELM!
j'ai un ELM327 generique "tout protocoles" dois je acheter un autre ELM ?
si oui pouvez vous me donner un modèle chinois pas trop chère que vous avez testé
20. February 2017 13:29
15. February 2017 17:38
Danke an das jeepwj.com Team !!!!
15. February 2017 12:26
For Helping give no code elm have no code.
Thanks sale the car is better
15. February 2017 08:32
If P0700 or P0702 is active and comes back after clearing, then there must be some other code stored in transmission that is causing P0700 and P0702.
P0700 and P0702 are "Transmission generic electrical" faults and they are stored in ECM (Engine Control Module). They appear only if transmission has an active fault code. If transmission has some electrical problem, then fault will be stored in TCM (Transmission control Module) and also TCM will report about this to the ECM. By this report ECM will store P0700 or/and P0702.
For this reason P0700 and P0702 can not be alone.
13. February 2017 13:12
wir haben ein Problem grand Cherokee 2,7 crd es war zuerst p702 p700
Notlauf die Fehler wurden gelöscht.
Wieder notlauf unter dem fahren geht gang raus und schaltet nicht mehr.
Werkstatt macht Kontrolle magnete usw Fehler gelöscht geht nicht mehr.
Dann kamm Fehler p 1685 habe ich mit dem elm327 gelöscht gearbox keine Fehler engine keine Fehler aber er schaltet nicht !
Vielleicht haben sie einen Tipp.
8. February 2017 10:15
when i enter in transmisión put sometimes the p0702 but also the
p2310.. what means it?
6. February 2017 10:12
4. February 2017 13:57
Leider habe ich per post ein elm327 bekommen kann nur wifi kein BT ihre Software Android kann nur BT oder gibt es eine BT Lösung.
Hatte Getriebe Probleme 2.7 crd 2003. code 700 702 wurden gelöscht und jetzt Geht gar nichts mehr Getriebe schaltet nicht schluesselmode 1685 Fehler Datenbus aber genauer kann ich es nicht sagen
2. February 2017 14:52
26. January 2017 09:16
J'ai pu lire les codes sur un wg de 2004 et 2003 sans probleme.
Par contre sur une suite de code comme :
Seul P1511 ne s'est pas effacé. Normel ou paqsje ne sais pas, mais je tenais a vous le signaler.
Si seulement vous aviez crée se logitiel en 2011, cela m'aurait evité bien des deboirs.
Je vous remercie et vous souhaite bonne continuation.
25. January 2017 19:33
25. January 2017 16:31
24. January 2017 19:30
Jeeps with other engines have different data bus protocol and they are not supported.
23. January 2017 14:18
Funktioniert sie Software auch für einen 99er 4.7 4x4?
Danke und Grüße
22. January 2017 20:51
Seems like you did not pair ELM327 device with your phone. Every Bluetooth device should be paired before you can use it.
20. January 2017 15:54
je viens d'acheter une prise ELM327 VER1.5A PRO sur ebay. Je viens d'installer votre petit soft. Mais lorsque que je veux lire les PCodes il m'affiche "On this Com Port no correct ELM connected!"
Pourriez vous m'aider?
16. January 2017 17:14
J'aimerais un logiciel qui diagnostique la transmission, donc votre logiciel me plairait, mais sur un Jeep grand cherokee wh ou wk de 2005, crd 3.0L 218 cv, marcherait il ?
8. January 2017 19:04
28. December 2016 13:46
Diagnostic configuration : ELM 327 chinois V1.5 à 10 euros connecté sur USB W7/PC USB. Grand merci à http://jeepswj.com/software/
Gearbox default fixed (second speed only after use of faulty battery) : P2602, P222 and P0700 cleared.
Configuration Tool : chinese 2016 ELM327 V1.5 - USB interface connected on W7/PC.
Many thanks to http://jeepswj.com/software/
20. December 2016 05:43
7. December 2016 21:30
happy customer in the FALKLAND ISLANDS
2. December 2016 19:08
30. November 2016 16:17
Mon grand cherokee 2.7 crd est de 07/2002, sur le site que vous conseillez pour achater le ELM 327, ils disent que sur les moteur diesel l'appareil lit les défault à partir de 2004, à ma connaissance le grand cherokee 2.7 crd de 2002 est le même que celui de 2004, pouvez vous me confirmer que le ELM327 de l'adresse : http://www.elm-327.eu/ fonctionnera avec mon cherokee
23. November 2016 17:28
14. November 2016 13:42
wenn ich die Fehler auslesen will schreibt das Programm kein Port vorhanden
13. November 2016 09:40
I would like to ask you guys to enable ratio setup - we the jeep owners would like to increase the tier diam and compensate with bigger gear ratio.
Increasing the gear ratio require updates to the gear computer otherwise it got into limp due to "mismatching" speed report from the abs sensors.
Your help is appreciated.
3. October 2016 10:50
1. October 2016 19:40
reading engine faults:
ATWM8115F13E not supported by ELM comumunication Error
28. September 2016 11:05
13. September 2016 19:46
13. September 2016 08:34
Have you the jeep diagnostic software in Wi-Fi version? Accidently I bought the Wi-Fi version from the website what you mentioned, from Romania.
10. September 2016 10:15
Where is the best place to buy an ELM327. I am in South Africa.
31. August 2016 10:04
25. August 2016 18:32
Henning Le Roux
Tomorrow I take her for a drive and see.
9. August 2016 10:15
At the moment we are developing an app that is almost dealer level for WJ - supported will be all modules of those cars: keys, immo, ABS, body, doors, entertainment etc. Also live data and tests. It is huge work, it takes time and we are on time if we can release it by the end of this year.
9. August 2016 06:44
Rev Samuel MSE Kayuni
My name is Samuel from Malawi Africa. I own a small business of renting and selling used 4x4s from UK market.
Latterly have sold many Jeeps with Diesel engines
CRDs. Right now I have 10 Jeeps parked at my yards have various issues like Keys not recognized,immobolizers, gears limp modes etc
I bought various diagnostic scan machines like launch, dvatage and the last one called DG VSI2554 I need soft ware that I can install in the machine that can handle issues of my Jeeps. Any idea please help.
I look so stupid to the people have supplied Jeeps of various models. I love these vehicles when running properly.
2. August 2016 11:21
vielen Dank für die Bluetooth Version!
Dieser Bluetooth-Adapter hier zum Preis von €19 funktioniert sehr gut, auf Android und Windows 7 getestet:
many thanks for the bluetooth version!
this bluetooth Adaper functions very well, I tested it on android and Windows7.
22. July 2016 04:36
I've encountered an issue with aux position on the Ignition where the radio is suppose to go on when the vehicle is of, immediately after clearing codes with your software. Got the same elm 327as in your pic connecting to usb. have you anny solution or help.
5. May 2016 18:32
Those Romanians are making good stuff for reasonable price and their devices are worth every penny.
23. April 2016 12:14
Are you sure elm327 USB (not BT) from car.pulse on ebay works ? because I've just buy one on ebay (from an other seller Diagscan) and it does'nt work, message : "communication error : fake elm" (I think it's a chinese version). My ELM is an usb V1.5a.
14. April 2016 20:07
I received the real ELM327 Bluetooth from Romania today.
Your jeepswj software reported it as ELM version 2.1.
I connected the Bluetooth ELM to a virtualized XP Pro SP3 running under Parallels Desktop 9 on my Apple laptop (OS 10.7.5).
A little tricky to pair it but I get it working.
I successfully erased a remaining default engine code on my 2.7CRD.
I also paired the ELM with my smartphone (Galaxy S2) without any trouble.
But I don't have appropriate app to communicate with the jeep TCU, I can just read engine codes (french OBDfacile app).
Would you send me the (beta) Androïd app so I can try it ?
Thanks for all your work !!!
7. April 2016 11:36
7. April 2016 09:30
Just to let people know that BT original ELM327 is out of stock from elm-327.eu website above. I emailed the seller. Without BT unit I can't test the Android pre-release ...
6. April 2016 06:23
2. April 2016 21:55
Just for the feedback, my elm 16bit branded ROH I'd with a previous software doesn't works. I will try an other later.
Nice site, a lot of infos about WJ et some produts interesting.
GB from France.
2. April 2016 10:43
31. March 2016 08:34
funktioniert das auch mit einem Jeep Grand Cherokee BJ 2004, WG, V8-4.7L
Danke und Grüße
29. March 2016 18:16
It happened after 10 months and 3000 downloads. Thank you Fernand.
18. March 2016 11:42
18. March 2016 11:16
25. February 2016 16:51
We did not have any WIFI ELM when we made our software and it will not work. Probably we will not upgrade it cause at the moment our goal is to make an Android version.
15. February 2016 12:30
Does your software works with WiFi ELM module ?
I got one from a friend before receiving the cabled unit from China (MartyVayne's link, thanks to him if it works for me !!).
It may be tricky to connect the ELM from your software (I don't know which port WiFi could use).
11. February 2016 07:35
Il vostro programma funziona alla grande con Windows xp è Elm 327 usb Made in Cina
Appena collegato porta com 3 legge e resetta tutti gli errori del motore e del cambio del mio GC WJ 2.7 crd del 2002.
Sarebbe bello riuscire a controllare anche eventuali problemi del climatizzatore o altro
Sono ansioso di provare anche la versione Android
Complimenti e Buon lavoro.
8. February 2016 16:01
Reads the gearbox codes but not the engine codes.
7. February 2016 15:49
For example Vgate iCar2 BT device worked well, but until manufacturer has not confirmed supported command list, we can not be sure that all Vgate devices work. Vgate is not very cooperative to answer to us, but we will keep on asking them.
7. February 2016 15:14
I bought a Chinese ELM327 cable connecting to your program, I appeared massage FAKE ELM.
Does this mean that I have to buy original cable?
Thank you .
7. February 2016 15:08
7. February 2016 12:52
cannot access the download via android or ipad..Is it still available?
6. February 2016 16:04
5. February 2016 10:38
3. February 2016 14:38
2. February 2016 21:25
Took a gamble on the Chinese fake but didn't work.
2. February 2016 09:15
2. February 2016 09:05
1. February 2016 18:33
when do you think the Andoid-Version is ready to use. We are already waiting impatiently for the app :-)
1. February 2016 16:49
1. February 2016 12:36
i use window vista.
27. December 2015 17:08
27. December 2015 15:42
22. December 2015 17:16
j'ai testé sur ma voiture et ça ne fonctionne pas, jeep wj 2003 2.7 crd
le logiciel ce connecte au cable mais ensuite pas moyen de lire les code d'erreur, avec le conctac, sans contact et même moteur tournant rien ne se passe.
22. December 2015 09:35
22. December 2015 07:40
19. December 2015 08:39
It has the PL-2303 XA/HXA chip build in, which only works on windows XP and Windows7, myself I use an Eeepc with windows XP.
Engine and transmission errorcodes reading and erasing perfectly!!!
I´m looking forward for the android version.
Many thanks to the developer, who made it possible to read and erase error codes on Jeep WJ/WG 2.7 crd!!!
16. December 2015 20:00
Used USB ELM 327 v1.5 Chinese clone. Bit of a gamble, but worked first time!
Costs about 7 euro's on ebay which includes international shipping!
Slow on arrival (takes about 2 weeks), but quality seems ok on first glance. Comes with driver CD, but didn't need that. Plug and play on Windows 7.
Able to read and clear two old codes from engine and reads transmission no problem.
ebay link: http://www.ebay.nl/itm/Mini-ELM327-USB-V1-5-OBD-II-OBD2-Auto-Scanner-Scantool-/190892911763?
seller's name is is eto666
Order and use Chinese clones at your own risk, just sharing my personal experience with this particular product.
5. December 2015 21:05
Thank you so much for your help and advice on my Jeep issues.
I downloaded your free software and bought a ELM from the site you
All good, retrieved/cleared the fault codes.
Can't thank you enough - you saved me a lot of cost at the Dealership.
5. December 2015 13:41
Super Sache weiter so echt TOP!!!!
27. November 2015 09:15
par avance merci
6. November 2015 19:24
bought the ELM327 usb v1.5a OBDII protocols and when connected to 2002 grand cherokee 2.7crd I get error messages Not supported Engine & Not supported TCM when trying to get fault codes.... trying to find codes and clear (in limp home mode), cleaned all contacts on gear selector module and want to clear fault codes with no success :(
2. November 2015 23:21
It works with my old Serial-USB ELM327 ver1.3a OBD interface on Windows7 32 bit.
(first pluged in the ELM, let windows to install the driver to COM9, then start your Software. Choose COM9 and it worked first time!)
Your software were able to read both Engine and transmission error codes and cleared them as well.
29. October 2015 22:00
6. October 2015 06:42
Dag Erik Johansen
7. September 2015 12:25
With the USB type of ELM adapter - it works like a charm!
Great software - the Android version wuld be perfect add!
29. August 2015 11:58
So far with my BT ELM version on Win10 Dell laptop I was unable to read anything. I'm not sure if ita due to the PCELM connection or more to the ELM istelf. I can only say that with the same adapter and my cellphone I can connect to Jeep with some OBD2 apps and see basic parameters.
I will try to oder the recommended usb version of adapter and gove it a try.
But it would be great if this will work as Android APP with the BT adaper. It would be just perfect!
23. August 2015 17:49
18. August 2015 20:46
14. August 2015 11:11
I buy yours elm327 recommandation, it's ok
Have a nice day!
8. June 2015 14:10
Thank you very much.