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2000 Jeep Cherokee turn signals out #5158749
07/12/19 02:47 PM
07/12/19 02:47 PM
Joined: Jan 2019
Posts: 99
Illinois
Jetsfan421 Offline OP
Jetsfan421  Offline OP

Joined: Jan 2019
Posts: 99
Illinois
My dad has a Jeep Cherokee that has intermittent blinker outage. I've checked the blinker fluid and it's all topped off. What else can be causing this problem? Relays? His doors randomly lock on their own like Gremlins are controlling them. Any help is appreciated.

Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5158752
07/12/19 02:53 PM
07/12/19 02:53 PM
Joined: Oct 2004
Posts: 9,135
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline

Joined: Oct 2004
Posts: 9,135
Cincinnati, OH, USA
I know the door wiring harnesses can go bad (I need one on my ‘98 for the locks & windows), not sure about turn signals, haven’t lost those yet.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5158755
07/12/19 02:56 PM
07/12/19 02:56 PM
Joined: Jan 2019
Posts: 99
Illinois
Jetsfan421 Offline OP
Jetsfan421  Offline OP

Joined: Jan 2019
Posts: 99
Illinois
Thanks for the quick reply Bullwinkle. Will look into the wiring harness.

Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5158758
07/12/19 02:58 PM
07/12/19 02:58 PM
Joined: Mar 2019
Posts: 1
Pennsylvania
Jmlo96 Offline
Jmlo96  Offline

Joined: Mar 2019
Posts: 1
Pennsylvania
I used to have a 97 Cherokee. At one time, it had issues with the 4 way flashers turning on with the turn signals. This was a long time ago, so bear with me. But as I recall, the issue had to do with the multifunction switch having an issue. I'm about 80 percent sure we solved the problem by changing the multifunction switch.

As for the door looks, check the wires in the doors. Jeep used cheap wiring that has a tendency to wear the insulation out from opening and closing the doors. Eventually the wires could also break. This caused issues with the speakers, power windows, and power locks. If one of those wires is grounding out, that could be your door lock issue. To troubleshoot this, I'd try unplugging each front power door lock switch until the lock problem stops.

Also, if it has remote keyless entry, it's possible that could be having an issue.

Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5158763
07/12/19 03:04 PM
07/12/19 03:04 PM
Joined: Jan 2019
Posts: 99
Illinois
Jetsfan421 Offline OP
Jetsfan421  Offline OP

Joined: Jan 2019
Posts: 99
Illinois
Welcome to the forum Jmlo96. I will check out the wireless entry system.

Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5158810
07/12/19 03:53 PM
07/12/19 03:53 PM
Joined: Dec 2011
Posts: 624
Upstate NY
Wheel Offline
Wheel  Offline

Joined: Dec 2011
Posts: 624
Upstate NY
It might be worth verifying that you have a good ground as well.


2009 Subaru Legacy (N/A)
Pennzoil Platinum Plus and NAPA filter
Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5158961
07/12/19 06:59 PM
07/12/19 06:59 PM
Joined: Jul 2018
Posts: 32
Valley Forge PA
XCIDMigs Offline
XCIDMigs  Offline

Joined: Jul 2018
Posts: 32
Valley Forge PA
https://www.youtube.com/watch?v=HEZDdqyONdQ

That's the answer to the intermitten flasher failure, the other responses about the wiring harness that is for the driver door explains why you get the weird activations of the locks etc. Open up or remove the giant black rubber cover inside the door jam and you will likely find one of the larger gauge wires is either actually broken or just has a weird broken part which you can replace or repair.
This is one of the worst vehicles I have ever had for this type of stupid electrical gremlins, the HVAC controls is another big mess....

Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5159091
07/12/19 09:35 PM
07/12/19 09:35 PM
Joined: Nov 2011
Posts: 4,251
Lima, Ohio, USA
earlyre Offline
earlyre  Offline

Joined: Nov 2011
Posts: 4,251
Lima, Ohio, USA
I know some other 2000 Chry-co vehicles with random activation of things like power windows, wipers,etc. caravans come to mind especially. on those,at least some of the blame falls to bad solder on the power distribution unit...early days of lead free solder... also defective clocksprings...all kinds of fun stuff.


Mine:
13 Ford C-MAX hybrid: MC 5w20, & FL910s (in theory)
Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5161375
07/15/19 10:40 AM
07/15/19 10:40 AM
Joined: Nov 2004
Posts: 7,921
Texas
GMBoy Offline
GMBoy  Offline

Joined: Nov 2004
Posts: 7,921
Texas
Turn signal switch. Easy to replace and not expensive.

Re: 2000 Jeep Cherokee turn signals out [Re: Jetsfan421] #5161526
07/15/19 01:22 PM
07/15/19 01:22 PM
Joined: Dec 2003
Posts: 981
New England, USA
wings&wheels Offline
wings&wheels  Offline

Joined: Dec 2003
Posts: 981
New England, USA
I had an intermittent light and signal problem with my GC. Drove me nuts, was almost going to take to the dealer but I followed the circuits and it turned out to be a loose connection at the bulb out monitor box inline with the rear light harness. Was in the base of the left rear pillar IIRC.


'05 Lotus Elise S/C
'85 Land Rover 90 diesel
'74 Triumph TR6
'74 BMW 2002
'72 Land Rover Series III 88"
'99 Porsche 996 (Wife's)
'01 Porsche Boxster S (mostly Wife's...)
Piper Pa28-236


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