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  #13  
Old 09-22-2015, 12:51 PM
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Re: P73 recall

Quote:
Originally Posted by dr.lee.baugh View Post
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.

Yes it is on all of the time and not just when I try to shift into 4low.
After the flash it worked great, so I thought all was good.
I'll keep looking into it further, will report back if anything comes of it.
Thanks for the response and the advice.

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  #14  
Old 09-23-2015, 10:56 AM
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Re: P73 recall

I had the N23 done like a lot of people, had the error, ended up with a new actuator. It helped a lot. I would just keep clearing the code occasionally with my DS programmer.

Got the P73 done, and twice in one weekend I had the error. BUT I didn't have to use my programmer to get rid of the code. With the Jeep in N, I turned the key to ON while pulling up on the 4WD lever and it shifted to 4Low and the code went away.

I have done this twice. maybe just luck, but I am sure I'll be able to try again in the near future
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  #15  
Old 09-23-2015, 11:41 AM
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Re: P73 recall

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Originally Posted by j33p View Post
I had the N23 done like a lot of people, had the error, ended up with a new actuator. It helped a lot. I would just keep clearing the code occasionally with my DS programmer.

Got the P73 done, and twice in one weekend I had the error. BUT I didn't have to use my programmer to get rid of the code. With the Jeep in N, I turned the key to ON while pulling up on the 4WD lever and it shifted to 4Low and the code went away.

I have done this twice. maybe just luck, but I am sure I'll be able to try again in the near future
Well that sounds random, but I'll give it a try as you just never know.

Thanks for the input.

Two questions:

1. What is the actuator? Do you mean you replaced the FDCM?
2. What programmer do you use?

Greatly appreciated.
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  #16  
Old 09-23-2015, 01:15 PM
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Re: P73 recall

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Originally Posted by Yeti76 View Post
Well that sounds random, but I'll give it a try as you just never know.

Thanks for the input.

Two questions:

1. What is the actuator? Do you mean you replaced the FDCM?
2. What programmer do you use?

Greatly appreciated.

Actuator is the motor attached to the transfer case, in the old days it was a manual lever.. you can hear it when it's shifting in and out of 4lo (when working)

I use the predator, it doesn't show the codes, but if I just keep choosing clear codes about 5 times, it eventually goes away
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  #17  
Old 09-28-2015, 11:52 AM
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Quote:
Originally Posted by Yeti76 View Post

Well that sounds random, but I'll give it a try as you just never know.

Thanks for the input.

Two questions:

1. What is the actuator? Do you mean you replaced the FDCM?
2. What programmer do you use?

Greatly appreciated.
Actuator is bolted on the transfer case and there is wiring on it you can't miss it.

The FDCM is the module that controls a bit everything 4wd esp... It's located under the rear seat row. Replacing it with a non flashed unit can be THE solution. But they are rare at the moment everybody is fighting to get one lol and prices went up.

Or you can have a voltage issue as I had.
It takes time to check but can save you a lot of money.
I learned it the hard way by changing a working actuator
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  #18  
Old 02-27-2016, 12:28 PM
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Re: P73 recall

Here we go again.

I read all the negative stuff on the first recall, so I never took my 05 ltd in for the flash, after a friend of mine had both flashes and his ignition cylinder replaced with no issues, I decided it was time to get the key cylinder swapped out because ours was so faulty it would shut the ignition down when the truck was driving from time to time. Being that there were no adverse effects from the flash on my friends XK I had the dealer do the flash on my truck as well. The dealer released the truck and said have a nice day, as I drove the truck out of the lot, no service 4wd system on the evic, the low range activated by itself during the turn onto the street! I thought the wheel was falling off. The truck dove into another lane. Being that I had just replaced the front hubs and outer tie rods, I checked underneath the truck to make sure nothing had fallen apart, I couldn't find anything, so i limped the truck back to my shop put it up on the hoist and proceded to tear my work apart looking for a problem. Everything was fine. I took the truck back out and tried some lock to lock turns, only to have the Jeep violently thrashing the front steering, I then realized the front diff was locking, binding up and releasing. I put the truck back on the hoist, started it and put it in gear to see if there was anything obvious going on. That's when I heard it. The low range motor was cycling off and on once about every three seconds. Frustrated I took to google and found all of the horror stories regarding these recalls. I came across a video that showed a guy pulling his FDCM fuse #25 to reset his evic warning. I pulled the fuse and listened for the actuator, there was no noise. Satisfied that I wouldn't do any damage to the truck, I took it out for a test drive, and everything performed as normal, however the service 4wd message was back on the evic obviously and no 4low.

So I called Village Chrysler back to tell them what had gone wrong with the truck, and Andy said "ya, sometimes there is problems with these flashes, you had better bring it back in". Happy with the conversation I booked another appointment to have the truck looked at. I take the truck in and get shuttled back to my shop, a couple hours go by, and I get a call from the service adviser saying the truck is ready to go, and to come pick it up. I explain the noise from the 4wd actuator and ask her if the tech had heard it and if it was stopped. She couldn't confirm that he did so I asked her to perform the same test on the hoist with the truck in gear and if they could listen to it and go from there. She (Heather) said it had been driven by the tech and Dave Webber the service manager and it was ready to be picked up. I plead with her to lift it up again she said she'd see what she could do. I miss a call from the dealership about 5 minutes later, it was Dave Webber the service manager saying he and the tech had driven the truck and it was ready to be picked up, my problem was due to the fact the rear tires were more worn than the front and they couldnt do anything further, and I "really need to get them changed".

As I drove the truck off the lot, I experienced the same thing I did the first time I left, the truck dove, front diff bound up and released. I angrily pulled fuse #25 drove it to my shop and thew another set of wheels and winter tires that I luckily had from a build we're doing on a customers 08 WK, and went right back looking for answers. With the 20 amp fuse in had I found Dave Webber weraring a $#!+ eating grin on his face saying "you gotta change those tires, chrysler says no more than a 1/4 inch difference in diameter" (which it was). I say "there's new tire on it right now... lets go for a drive". After disputing for a second he reluctantly agrees saying he already did. He and I took the truck for and uncomfortably long drive with the diff engaging and disengaging, and began to make excuses of a bad abs senor causing the issue, saying that the esp and abs system control the transfer case. I shook my head and said no. Dave says "I wonder if this truck had this problem before it came in" What? Literally everything including 4 low was working on the truck, I just had a service 4wd system message on my evic that I wanted gone. I did happen to have a new wheel speed sensor at my shop and agreed to put it in, even though I had no abs light on and my cruise control was functioning. My WK now had two new hubs on the front and 4 new ABS sensors in it about an hour later. I test drove the truck and guess what, still had the same problem.

My trust in this dealer was now shook, we had a good relationship with the parts dept. there, both my business partner and I have WK/XK's we have a client base of 70% mopars, and now I was being brushed under the rug. I had no faith or confidence in these idiots at Village Chrysler had the ability or the want to find or fix this problem. So I called customer service and told Alyssa exactly what I had just told you. She was sympathetic but wanted to speak to Dave Webber. After a brief hold, she came back on the line saying he had left for the day, and she would contact me tomorrow after she spoke with Dave.

The conversation the next day with Alyssa and had a very different tone. She was now just repeating everything Dave Webber said. I had a circular argument with he for about 45 minutes, got nowhere, she actually said "well sir, your truck is a 2005" so... your vehicle aren't supposed to work as originally intended after a certain vintage? "that's not what I'm saying, don't put words in my mouth". The long and short of it came down to her saying your truck needs to have a diagnostic done to see if this flash caused the problem, as Village Chrysler had not performed a diagnostic, and I had to pay for it. Fine. I'll play along again. I've now replaced a working wheel speed sensor and borrowed and change wheels and tires to help these people do their jobs, but whatever. All I knew was the truck wasn't gong back to Village Chrysler.

So I made an appointment with the next closest dealership. I was 100% candid with them about what happened, what was not functioning on the truck, who I dealt with, and what my symptoms were. I again hear the same "Ya, this stuff happens, we'll get it straightened out" It was like a huge weight was lifted off me. The front end staff was accommodating and friendly, the told the tech what the deal was, he took the truck for his one hour diagnostic. When the tech's time was up he came and found me. Told me I had a bad steering angle sensor, which I knew of, and my rear diff clutches were no good, that was my problem, not the recalls. Puzzled how he came to this assumption, I asked him if he had heard the noise coming from the 4low motor, he said no. After trying to explain to him how to hear the noise and realizing my instructions were not making sense to him, I asked to come in the back and perform the same test I had done on my hoist when I first heard the 4low actuator acting up. Sure enough, the motor was tripping out. He looked puzzled and went back to starscan and pointed out code C1421 "rear differential clutch performance" and said he had to open the diff to figure out what was going on. Now I don't say I know everything, however, none of what the tech was saying to me made any sense at all. How could a failing rear diff failing cause my 4low motor to be creating this unsafe, undriveable condition I never had before the flash? I knew from my previous dealings with village Chrysler and a copy of my original scan I had done on the truck that I did have a rear diff code, C141D "rear diff solenoid low circuit" but C1421 was not present before the flash. I showed the tech a copy of the scan I had done and he proceeded to call chrysler engineering. 20 minutes passes and he come back and says, because there's no code for the transfer case it has to be the diff causing the problem, and that in order to go any further I would now have to put the OEM tire size back on the truck, because he feels the truck sensing the tires moving out of spec. OK. Fine. I don't believe you but Whatever. Who lifts a truck and keeps the original tires from 4 years ago? I certainly don't. Most people wouldn't. Is this the easy way to get rid of me? I can only speculate. Guess what though... Remember when I said we do 70% mopars at my shop, and that my partner has an XK, and we're doing a huge build on an 08 WK. I actually have a set of stock rims and tires. They're on another truck at the moment that's waiting for a lift to come in. Next week I'm going back in with a new diff solenoid, new (used) clock spring and 245/65r17's on. I'll keep you all posted.
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  #19  
Old 02-27-2016, 01:49 PM
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Re: P73 recall

i did over 1 year ago no problem
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  #20  
Old 04-27-2016, 01:09 PM
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Re: P73 recall

Quote:
Originally Posted by jeeper_57 View Post
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 😂

Any chance you have a pic of this ? Not 100% sure on what you wrote. Is it still problem free?

I have had it with n73/P73 so looking for alternatives other than buying pre-n23 FDCM
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  #21  
Old 04-28-2016, 06:22 PM
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Re: P73 recall

Hi there,
I had P73 recall on last February and after few days, the "4WD WARNING SYSTEM" come already in dashboard....and no low range.
Damn !!
I took my OBD Scanner and diagnose was C140F error (FDCM Module - Transfer case range position sensor erratic performance)...uhmmm...
So, I disconnected the plug connector from Transfer Case and sprayed electronic cleaner (like CRC 5103) inside it.
After 10 minutes, I cleaned everything with air tool compressor. So, I connected again the plug on TC.
That's all. After 2 months...I never seen annoying light on Evic and Low Range works like a charm (knock on wood).
Bye
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  #22  
Old 04-29-2016, 08:15 AM
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Re: P73 recall

Quote:
Originally Posted by doctor_cpu View Post
Hi there,
I had P73 recall on last February and after few days, the "4WD WARNING SYSTEM" come already in dashboard....and no low range.
Damn !!
I took my OBD Scanner and diagnose was C140F error (FDCM Module - Transfer case range position sensor erratic performance)...uhmmm...
So, I disconnected the plug connector from Transfer Case and sprayed electronic cleaner (like CRC 5103) inside it.
After 10 minutes, I cleaned everything with air tool compressor. So, I connected again the plug on TC.
That's all. After 2 months...I never seen annoying light on Evic and Low Range works like a charm (knock on wood).
Bye
Thanks, the dealer explained to me reports of problems with the conenctor as well, but indicated my connectors are clean and no issues, maybe I should just unplug it and check it out for myself.
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  #23  
Old 04-29-2016, 12:15 PM
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Re: P73 recall

Quote:
Originally Posted by j33p View Post
Thanks, the dealer explained to me reports of problems with the conenctor as well, but indicated my connectors are clean and no issues, maybe I should just unplug it and check it out for myself.
Yeah....try it...just 20 minutes to do all.
Let's know if worked.
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  #24  
Old 05-02-2016, 09:32 AM
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Re: P73 recall

Quote:
Originally Posted by j33p View Post
Thanks, the dealer explained to me reports of problems with the conenctor as well, but indicated my connectors are clean and no issues, maybe I should just unplug it and check it out for myself.
It was also recommended I inspect C200 and C105 connector, not sure I found them. lol diagrams weren't that clear.

Going to the dealer tomorrow, hopefully some progress.
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