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Old 11-19-2013, 05:02 PM   #1
JRoweMDN's Avatar
Join Date: Apr 2012
Location: Keystone Heights
Posts: 330
Flashing Rubicon locker lights

I have been through the forum search here and JF and I have found some help but I am looking for a map to follow to trouble shoot this. There are a ton of threads about lockers so I hope this is not a repeat.

2005 Rubicon 4.0 45k miles

My Rubicon locker lights do not stop flashing when lockers lock. The lockers are engaging and the pump runs for a short period and shuts off. I have not heard it cycle multiple times. All of the wires and air tubing appears to be intact. Sometimes the lights will keep flashing after the lockers disengage, and once it continued to flash after I turned the jeep off. I feel like it is switch or sensor related but I want to start in the most logical place and work my way through all of it so I can get it fixed correctly. This is front and rear lights.

It started at Jeeptoberfest when the pumps would not come on, I checked fuses and wound up tapping on the pumps while activating the switches and they came on, pumped up for a few seconds and lights went solid. The lockers were engaged and and I did several tests to make sure they would go on and off while waiting in line. After locking them to get over an obstacle they started flashing but were still locked. I could not turn much at all so I know they were locked. I tried unlocking them and they still flashed and did not unlock. After I got off the course on flat ground I finally got them to unlock and the light flashed then finally quit. I tried locking them again and light flashes, pump runs, quits and the lockers are engaged. Try disengaging and the lockers disengage but the lights keep flashing then finally stop. After getting home I test them again all works as it is supposed to except lights keep flashing, including after I turn the jeep off.

I have no issues shifting from 4 hi to 4 lo and the 4wd light activates properly, no other gauges are acting strange, not other electrical issues.

It is time to service the diffs, transfer case, and transmission so I want to do all of this while I am in everything anyway. I am pretty good at tracing wiring but get a little confused when it gets technical on voltage readings for diagnosis but I have someone who can help if I need it. I have a service manual to help guide me along. I appreciate any help.

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Old 11-22-2013, 05:39 PM   #2
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Join Date: Apr 2012
Location: Keystone Heights
Posts: 330

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