08 5.7 "service 4wd" and NO low range - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 13 (permalink) Old 03-26-2014, 10:54 PM Thread Starter
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08 5.7 "service 4wd" and NO low range

Warning light comes on when I try to use low range--going to dealer but need some advance advice to be prepared as to possible cause. Dealer replaced the 4wd pump 6 months ago under extended warranty--4wd worked OK after repair--not now,

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post #2 of 13 (permalink) Old 03-27-2014, 12:33 AM
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Did you have the N23 recall performed ? If so, that is your problem.

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post #3 of 13 (permalink) Old 03-28-2014, 10:34 PM Thread Starter
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NO---appreciate your reply,

BCB
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post #4 of 13 (permalink) Old 04-01-2014, 01:54 PM
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In my case was a weak battery. Replaced and problem went away.
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post #5 of 13 (permalink) Old 04-02-2014, 07:17 AM
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If the recall was out and the dealer had your XK they probably did it. I would check with them.
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post #6 of 13 (permalink) Old 04-03-2014, 08:12 PM
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I've had to go back 4 times for the same problem.
First they changed the "solenoid" (?) that sucks it into low.
That worked for a week. Then they checked the connections and cleaned them. 2 Wks.
Then they say they went thru it from top to bottom and cleared all the codes.
Codes : C1405 - Transfer Case Range Position SensorCircuit & C140f -Transfer Case Range Position Sensor Erratic. Good luck!
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post #7 of 13 (permalink) Old 05-13-2014, 04:47 PM
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I had the N23 recall done and it caused the problem. A new version of the N23 recall software fixed my problem.
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post #8 of 13 (permalink) Old 05-21-2014, 09:43 PM
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They did the software update on my 5.7 and the same thing happened to me, the only thing was that I realized it after I left for VA .
For those having this issue try this
Turn off car
Take out fuse 25(one labeled fdcm/ediff) it's different on different years
Turn on car drive forward a few feet and reverse a few feet. Turn off car and plug in the fuse.
Turn the car on and test the 4lo
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post #9 of 13 (permalink) Old 11-18-2014, 04:16 PM
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Quote:
Originally Posted by jeep5253 View Post
Did you have the N23 recall performed ? If so, that is your problem.
I did have that cursed recall done and brought her in for the same annunciation shortly after. It's been since summer since the service 4wd system message. I tried the #25 fuse trick to no avail. Anyone have any other suggestions? Cheers. Jorge

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post #10 of 13 (permalink) Old 11-19-2014, 08:57 AM
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There was a TSB that was released that addresses the issue with Jeeps having had the N23 recall performed. They released a new flash version that fixes it. There's a thread all about it here: N23 Recall Flash.

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