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Discussion Starter · #1 ·
Hope this post is in the right section.

I have an older Innova 3100e reader - maybe 10-14 yrs old - it reads engine codes ok -has helped me in the past. Recently I had the Service 4wd system error on the dash - took it into the mechanic - said he read a few codes from the transmission - worn 4wd clutch etc - he cleared the codes and the msg went away - he checked all the electronics & told me all is good - and if it happens again to come back. My Commander is a 2006 about 280K km on it. The Service 4wd system code is back - but when I use the above reader it shows no codes - why can't I see and clear the codes like my mechanic can with his reader ??? I've looked for updates for my 3100e and there are none - do I need to get a more up to date reader ?? any help or advice is appreciated.
 

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Hope this post is in the right section.

I have an older Innova 3100e reader - maybe 10-14 yrs old - it reads engine codes ok -has helped me in the past. Recently I had the Service 4wd system error on the dash - took it into the mechanic - said he read a few codes from the transmission - worn 4wd clutch etc - he cleared the codes and the msg went away - he checked all the electronics & told me all is good - and if it happens again to come back. My Commander is a 2006 about 280K km on it. The Service 4wd system code is back - but when I use the above reader it shows no codes - why can't I see and clear the codes like my mechanic can with his reader ??? I've looked for updates for my 3100e and there are none - do I need to get a more up to date reader ?? any help or advice is appreciated.
@moonrakercat ;

See what codes you come up with when you do the key dance;

The Key dance is performed by turning the ignition switch on/off 3 times quickly - On the 3rd cycle, you keep it in the ON position - DO NOT turn it off on the 3rd cycle.

Any current or stored DTC's will be displayed in the EVIC.
 

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Discussion Starter · #5 ·
@moonrakercat ;

See what codes you come up with when you do the key dance;

The Key dance is performed by turning the ignition switch on/off 3 times quickly - On the 3rd cycle, you keep it in the ON position - DO NOT turn it off on the 3rd cycle.

Any current or stored DTC's will be displayed in the EVIC.
Yes - I tried it - no codes come up - it just says DONE
 

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Yes - I tried it - no codes come up - it just says DONE
Then you have no DTC's at present;

If the service 4WD system message is still on, you may need to have your FDCM reflashed, which wouldn't generate a DTC;

Have you had the P73 campaign completed on your Commander?

See the attached P73 Customer Satisfaction notice;

You can plug in your VIN below & see if your XK has had this completed or not;

Official Mopar Site | Service, Parts, Accessories & More
 

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You also need to verify which 4WD system that you have; QT-I or QT-II.

Your signature says QT-I, but, if you have the 4.7L V-8, you probably have QT-II, in which case, the P73 campaign would apply to your Commander.

The P73 campaign applies to both QT-II & QD-II equipped Commanders, as they both use the NV245 two speed transfer case;

You can pull your Factory build sheet below, if you don't already have it, just by plugging in your VIN;

FCA RAM
 

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i can not guarantee it will, but for <$20 may be a good investment. it does work work with FCA Appcar on a laptop so you should be able to do just about anything with it.
 

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Discussion Starter · #9 ·
You also need to verify which 4WD system that you have; QT-I or QT-II.

Your signature says QT-I, but, if you have the 4.7L V-8, you probably have QT-II, in which case, the P73 campaign would apply to your Commander.

The P73 campaign applies to both QT-II & QD-II equipped Commanders, as they both use the NV245 two speed transfer case;

You can pull your Factory build sheet below, if you don't already have it, just by plugging in your VIN;

FCA RAM
Hi Blue - thanks for the links - Good idea !!! I did put my vin in - and checked - and all the safety recalls as well as the p73 campaign(done in 2015) have been done.
And your right - checked the link above (thanks again !) - it is a QT II - so I fixed that in my profile.

I'm still in the dark though - I called a partsource and asked them why my scanner won't read the tranny codes - he said I need to buy the $ 4K scanner if I want to
do that. Ack.....

I tried pulling the 25 fuse(fdcm ediff) trick and taking it for a drive - no luck - maybe I should have pulled 23 (fdcm) fuse also ??
 

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Discussion Starter · #10 ·
i can not guarantee it will, but for <$20 may be a good investment. it does work work with FCA Appcar on a laptop so you should be able to do just about anything with it.
Interesting - did a search - said it does pull up tranny codes - but I'm skeptical - well it is cheap - and I can return it if I buy from amazon and it doesn't work - still - would be nice to find someone
who has diagnosed transmission codes with it from the commander to confirm....
 

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Discussion Starter · #11 ·
i can not guarantee it will, but for <$20 may be a good investment. it does work work with FCA Appcar on a laptop so you should be able to do just about anything with it.
Wait a minute - the FCA Appcar is not free software - so I have to buy software for the ELM327 ?
 

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Wait a minute - the FCA Appcar is not free software - so I have to buy software for the ELM327 ?
Transmission DTC's would show up just like any other DTC, you don't need anything special to pull them up;

They would show up in the EVIC when you do the key dance, if there were any present;

Yes, you would have to buy the FCA Appcar Diag OBD-II software, if you are going to try to use the ELM327 USB Cable; I think it's $50.00 for a single VIN the last time I checked and trust me when tell you, it will be the best $50 you ever spent; I highly recommend it.

More info on that here;

Want to disable your TPM sensors? You need Appcar-DiagFCA OBD-II Software; | Jeep Commander Forum

Also bare in mind, there are members that I know & trust, who have told me that they had to have their FDCMs re-flashed 3 times consecutively, for it to take properly;

Point being that just because you had it done once, several years ago, does not rule out the possibility of you needing to have your FDCM re-flashed, yet again.
 

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Discussion Starter · #13 ·
Transmission DTC's would show up just like any other DTC, you don't need anything special to pull them up;

They would show up in the EVIC when you do the key dance, if there were any present;

Yes, you would have to buy the FCA Appcar Diag OBD-II software, if you are going to try to use the ELM327 USB Cable; I think it's $50.00 for a single VIN the last time I checked and trust me when tell you, it will be the best $50 you ever spent; I highly recommend it.

More info on that here;

Want to disable your TPM sensors? You need Appcar-DiagFCA OBD-II Software; | Jeep Commander Forum

Also bare in mind, there are members that I know & trust, who have told me that they had to have their FDCMs re-flashed 3 times consecutively, for it to take properly;

Point being that just because you had it done once, several years ago, does not rule out the possibility of you needing to have your FDCM re-flashed, yet again.
Hmmmmm....reflashing is what I was thinking about. I'll look further into the software - and I'm going to call the garage the jeep was at last time for this - ask them if they can reflash and why I can't pull up the codes they did.

Thanks for the advice blue -
 

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torque and jscan are free, the FCA appcar is the factory package, worth it in my opinion but you do not have to get it
 

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Hmmmmm....reflashing is what I was thinking about. I'll look further into the software - and I'm going to call the garage the jeep was at last time for this - ask them if they can reflash and why I can't pull up the codes they did.

Thanks for the advice blue -
No problem moon, let me know how it goes.
 

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You also need to verify which 4WD system that you have; QT-I or QT-II.

Your signature says QT-I, but, if you have the 4.7L V-8, you probably have QT-II, in which case, the P73 campaign would apply to your Commander.

The P73 campaign applies to both QT-II & QD-II equipped Commanders, as they both use the NV245 two speed transfer case;

You can pull your Factory build sheet below, if you don't already have it, just by plugging in your VIN;

FCA RAM
when the P73 been released? not been told in my country. thx
 

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