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Jeep Turn signal problem

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New User

Feb 5, 2008, 2:33 PM

Post #1 of 9 (49042 views)
  post locked   Jeep Turn signal problem  

I've read quite a few posts that describe an intermitent problem with turn signals on Grand Cherokees, but none were exactly like my issue. My right turn signal has always worked fine. The left will rarely come on at all without some help. If i turn it on (not working), then turn on the hazards (work perfectly), then turn the hazards off, the left signal will stay on about a third of the time. It seems to work a little better in warm weather. The signal will work more often if i have been driving for awhile (at least 30 mins), especially when its cold out. Took it to a mechanic and he couldn't find the problem. Told me to take it to a Jeep dealer. Heard about switch modulators in the steering column, clocksprings, etc. Need Help!

New User

Mar 22, 2008, 9:50 PM

Post #2 of 9 (48899 views)
  post locked   Re: Jeep Turn signal problem  

Hi Benny, I have the SAME exact problem with my 2000 Grand Cherokee! It is NOT the multifunction switch, I just purchased one (OEM) from Jeep and put it in myself, still have the same problem. When the problem started it only quit periodically, now it works less and it's a bonus when it does work... and same thing as you, only sometimes does the hazard trick work. Yesterday, I did the hazard trick and it started to blink and then just stopped.
When you find a solution, PLEASE let me know. Thanks!

Jeff Norfolk
Jeff Norfolk profile image

Sep 20, 2008, 5:14 PM

Post #3 of 9 (48174 views)
  post locked   Re: Jeep Turn signal problem  

^^^^^look at the SPAM link above^^^^^

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 20, 2008, 5:57 PM

Post #4 of 9 (48170 views)
  post locked   Re: Jeep Turn signal problem  

Pooof! That one's gone too!


New User

Nov 12, 2008, 7:45 AM

Post #5 of 9 (47751 views)
  post locked   post icon Re: Jeep Turn signal problem  

I had the exact same problem w/ my 2001 Jeep Grand Cherokee. Fairly simple fix. It is the flasher relay, OEM Mopar Part #4686094, pay around $45 for the part at the dealer.
Take kick plate trim off (3 screws and clips holding it on) remove fuse cover (pops off) remove plastic shroud in front of steering wheel below the instrument gauges(pops off) remove large plastic shroud under steering wheel, (2-10mm bolts, clips and one phillips screw holding in place). Relay will be above fuse box, very tight fit but with a little nudging and nimble fingers pop out the old relay and replace with new one. Re-install all equipment in reverse order. Solved my turn signal problem immediately. Good luck

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 12, 2008, 7:49 AM

Post #6 of 9 (47749 views)
  post locked   Re: Jeep Turn signal problem  

Please start your own thread with your exact vehicle. We can't read the whole thing with other vehicles to guess on yours based on "exactly like above" as your description. Start one all your own - it's free!


New User

Mar 18, 2009, 2:08 PM

Post #7 of 9 (46441 views)
  post locked   Re: Jeep Turn signal problem  

just fixed this problem on my 2003 grand cherokee. it's the combination relay switch. the only thing i can add to the tight squeeze situation that you mentioned is that the entire junction block that holds the fuses and relay switches can be loosened and lowered enough to pull the switch out without needing small or nimble fingers. there are 2 10mm bolts on the junction block that should be removed. once they are removed, pull the entire box downward, it is held on by 2 clips. you'll have access to the relay with no problem. once changed, push the junction box upward, aligning the 2 clips into the holes that they go into. jeep recommends that you disconnect the negative battery cable and wait 2 minutes before tinckering with the relays. included here is an attachement with an illustration of the entire box and the 2 clips that i'm talking about, it will help you understand how this is attached. thanks all for the tips.
also goto then interior trim moldings and bezels, steps 4 and 5 to see how to remove the covers and trim to access the junction block.

good luck all

(This post was edited by jediknight on Mar 19, 2009, 2:51 PM)
Attachments: attachment icon WJflasher.pdf (33.8 KB)


Dec 22, 2012, 10:52 AM

Post #8 of 9 (19409 views)
  post locked   Re: Jeep Turn signal problem  

Just wondering where you got that wiring skematic.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 22, 2012, 12:08 PM

Post #9 of 9 (19401 views)
  post locked   Re: Jeep Turn signal problem  

Youy need to read the FORUM RULES before posting. This thread is 3 years old.


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