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  #1  
Old 06-25-2015, 04:03 AM
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P73 recall

Hi all I received a nice letter for the P73 recall. It should correct the N23 mess.
Should I perform it?
FYI try 4wd low don't work after the update of last year. Module changed and motor changed..
It o la works when I put 12V from the battery on the red cable on the fdcm.

The error in the ecu only gives something linked to the motor.
I had the service 4wd message constantly on for a while. After that only when I turn ignition on and sometimes it pops up when I drive over a bump.

What can it be except a electronic gremlin? What shall I do?

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  #2  
Old 06-25-2015, 06:59 AM
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Re: P73 recall

If you have had the N23 done you probably should have it done. If not I would hold off. I did not do the N23 and will not let touch my jeep no matter what they come up with.


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  #3  
Old 06-25-2015, 11:35 AM
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Re: P73 recall

Quote:
Originally Posted by Kman09JGC View Post
If you have had the N23 done you probably should have it done. If not I would hold off. I did not do the N23 and will not let touch my jeep no matter what they come up with.


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Amen! I concur with Kman's assessment. You're already into it, and they say that they'll pay for all parts and labor to fix it.......but I am sure not with a bunch of BS and hassle first. And of course they'll probably try to get you to pay for it first and then back off if you challenge them.
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  #4  
Old 06-26-2015, 09:27 AM
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Quote:
Originally Posted by jeepgcoman View Post

Amen! I concur with Kman's assessment. You're already into it, and they say that they'll pay for all parts and labor to fix it.......but I am sure not with a bunch of BS and hassle first. And of course they'll probably try to get you to pay for it first and then back off if you challenge them.
I hope it will solve the mess they made
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Old 07-03-2015, 01:30 PM
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Re: P73 recall

I had this performed two days ago, and it has already lasted longer than the N23 recall did.

I had a backup FDCM from a junked WK that was never flashed under the N23 recall in my trunk just in case, but so far, the new software is working.

I agree with the above, if you never had the N23 recall done (or don't have a spare FDCM that you can throw in if it all goes wrong) I wouldn't bother until the P73 has some more mileage on it.
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Old 08-19-2015, 03:47 PM
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Re: P73 recall

I'm schedule to have the P73 done, as I have a constant Service 4wd message on.
I cannot access 4 low which is not the end of the world, but it would be nice to have the option considering it is a jeep after all, plus lose the annoying message.


What is the worst that could happen by having this done?
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Old 08-19-2015, 03:49 PM
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Re: P73 recall

Quote:
Originally Posted by dr.lee.baugh View Post
I had this performed two days ago, and it has already lasted longer than the N23 recall did.

I had a backup FDCM from a junked WK that was never flashed under the N23 recall in my trunk just in case, but so far, the new software is working.

I agree with the above, if you never had the N23 recall done (or don't have a spare FDCM that you can throw in if it all goes wrong) I wouldn't bother until the P73 has some more mileage on it.

Dr. Lee

Any news or updates from you after having this done?
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Old 08-20-2015, 01:05 PM
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Re: P73 recall

Over a month and a half in, 4WD Low still works without issue.

This is much, much, longer that any of the previous N23 flashes that I had performed. I would be lucky if I could get a week out of it before.

While I don't want to say that it is fixed (and I am still holding onto my spare FDCM just in case), I can say that this is definitely working better than any of the previous re-flashes and re-sets.
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Old 08-21-2015, 11:59 AM
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Re: P73 recall

Well I had the P73 re-flash done.
The result is I have access to 4low for the first time since I have owned this vehicle.
No more Service 4wd message on constantly either as well - bonus!
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Old 08-21-2015, 05:12 PM
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Quote:
Originally Posted by dr.lee.baugh View Post
Over a month and a half in, 4WD Low still works without issue.

This is much, much, longer that any of the previous N23 flashes that I had performed. I would be lucky if I could get a week out of it before.

While I don't want to say that it is fixed (and I am still holding onto my spare FDCM just in case), I can say that this is definitely working better than any of the previous re-flashes and re-sets.
I haven't went for the re flash.
I've sol ed the problem for me, it seems that I was right there was no permanent 12V on the pin 11of the FDCM but only a after contact and too low voltage 7V one that was really strange .
Ive taken a cover wire from A-one of the other permanent + and I'm happy since. So far so good. I've also a non flashed one 😂
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  #11  
Old 09-21-2015, 11:58 AM
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Re: P73 recall

Update:

Almost exactly one month after the re-flash the service 4wd re-appeared and 4 low is no longer an option once again.

A waste of my time I guess.

Anyhow, I suppose I'll just live with a 4 low-less jeep and the annoying message on the display.

I wonder if there is a way to have the message cleared even if the 4 low doesn't work? Anyone have any thoughts or suggestions on whether that's possible?

Thanks.
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Old 09-22-2015, 09:31 AM
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Re: P73 recall

Does your message only appear when trying to shift into 4WD low, or is it there all the time from the moment you start the jeep?

If the latter, I don't think the P73 software won't help. From my understanding, the issue the new software addresses had the behavior that when you attempt to shift into 4-low, the message appears, but it will clear when you shut off the car and restart until the next time you shift into 4-low. That's what it did with mine (which is still fully functional following the recall).

It sounds like yours may actually have something (other than buggy software) wrong with it. Perhaps checking voltages like Jeeper_57 did is a worthwhile step? Not saying it isn't the software (and others have reported that the recall hasn't helped them either), but it is worth checking out.

Alternatively, see if you can find an old (unflashed) FDCM and swap that in. It's a five minute job and will tell you if it is related to the recall or not. Should be able to pick one up for ~$40 from a salvage yard.
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