Excursion is stuck in 4low. Both 4x4 and 4 low lights on dash. Have no power to switch though, have checked all fuses that I can find inside and under hood. Dealer diagnosed bad transfer case motor. Replaced and still nothing, I trying not to have to take back to them. Pleaee help. Thanks

 

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Put it in Neutral. Reset.

 

Please explain reset? I have put in nuetral foot on brake and moved switch and get nothing. I pull plug from back of switch and have no voltage. I assume there should be?

 

Please keep updating the thread, I've got one with no action at the switch as well BUT it's not in 4WD at all, much less in LOW Are you driving it How did the dealer send you home with a new $500 shift motor and T-Case still in LOW My next step is to see if I have power shift motor as soon as I have the time to get under it

 

Dealer charged me $90 to diagnos the problem. Sold me actuator and I installed(not difficult). Immediately when I plugged in the harness it shifted back to 4w low.

 

Take the motor back off, manually turn the shaft on the transfer case back to 2wd, that will get you at least able to drive it. How did you get a truck in 4low to a dealer? Mine wont go over 15mph and will be tached out at that.

 

Just a guess BUT if you plugged in the plug & the t-case when into low THEN you have power to the switch. UNWANTED power but power. I would say it is the dial in the cab BUT how it goes to LOW without being in Neutral / Foot on brake is a puzzle as well


PS: I think my issue is a frozen shift motor ...I'd be interested in your old one if your not keeping it as a spare !!

 

It was only 2 mike drive to dealer. I have no power at switch with test light. I do have power at 1 terminal when I turn lights on, but that is the only time.

 

"if you plugged in the plug & the t-case when into low THEN you have power to the switch" Should have said plug at shift motor. The motor / T-Case can't jump into action without power..

 

Won't get back to it till the weekend, but I still do not have any voltage at switch. Got to find a wiring diagram and start over

 

Hopefully you wont find that your windshield has leaked water and your GEM module has been wet and is bad. That would be your worst case scenario. Hopefully your switch is bad or a wire somewhere. If my GEM dies in that manner I will be looking to put a manual lever from a truck in mine.

 

Is it 12volts to the switch? Like I said no voltage per working test light, but maybe I need to use volt meter if less

 

I think its only 5 volts signals to the gem to tell it to engage the tcase. I think you should have relays that actually send that power to the case. You could have one of those bad. If I remember right, they are identical and can be swapped for troubleshooting. Hopefully someone with a wiring diagram comes along though as its been a while since I had to trace one of these issues.

 

I've triedyhe relay swap already, will ck with volt meter this weekend. Thanks for all advise