Chrysler Recalls Almost 470,000 Jeep SUVs

[jjt250]

I thought I got lucky...after months of having the N23 recall done on my Jeep, I finally have the dreaded "Service 4WD" error message. I have put it into 4Lo several times and used it. I even put it in 4Lo yesterday. Today I was messing around and tried putting it in 4Lo and got the message. Pretty bummed now. Now I have to figure out what to do...

[Matt]

Do you know anyone relatively local with a flashpaq? Id try clearing the codes and see if it works... this will rule out"coincidence" and put you in the same boat at everyone else

[jjt250]

Unfortunately, no. If you know anyone in the Omaha metro area with one, let me know! I'm not even sure if it would work with my Jeep because Superchips doesn't support the CRD. I tried clearing it with a different code reader but it didn't even find any codes. It could be a coincidence, but it seems highly unlikely at this point plus, our Jeep has been regularly maintained. Looks like I may need to buy a junkyard FDCM that has the old software.

[Matt]

Superchips doesn't support CRD tuning, but that's independent from the OBD functions... your drivetrain has the same modules as the rest of ours so I don't see a reason it wouldn't work.

[hoaxci5]

From what I've read if the update caused the problem all they need to do is reflash it until it works. Sometimes it's taken 3-4 times of reflash and then it seems to work.

[jjt250]

Superchips doesn't support CRD tuning, but that's independent from the OBD functions... your drivetrain has the same modules as the rest of ours so I don't see a reason it wouldn't work.

You're right, didn't think about it like that. I don't understand why only the Superchips have been successful in clearing the codes.

From what I've read if the update caused the problem all they need to do is reflash it until it works. Sometimes it's taken 3-4 times of reflash and then it seems to work.

This only works temporarily, it always comes back it seems. From what I understand, the only "solution" is to get a junkyard FDCM that hasn't had the recall performed on it or you can send your FDCM to blown7 on JeepForum and he can reflash it to the old software (he has StarScan).

[Matt]

You're right, didn't think about it like that. I don't understand why only the Superchips have been successful in clearing the codes.

I think we lucked out in the sense that the Superchips added a lot of "offroad" features for the JKs which required communication with the FDCM. In doing so, their programmer can read/clear drivetrain codes that normal OBDII scanners can't.