Sign In Join 



Jeep Cherokee

2529 messages,  Last post on Nov 25, 2009 at 7:57 PM

You are in the Jeep Cherokee and Jeep Grand Cherokee Forum. Your Hosts are steve_ & tidester

What is this discussion about? Jeep Cherokee, SUV


Messages Page 253 of 254
1
...
248
249
250
251
252
253
254
Prev
Next
Last
Go To Msg #
Search This Discussion

#2514 of 2529
Re: Defogger stopped working [loosenut] by ryan99
Oct 10, 2009 (5:00 pm)
Reply

Replying to: loosenut (Oct 09, 2009 5:51 pm)

Thanks for the replys everybody. Hey loosenut, there is continuity at the grid but no power. there is power at the switch and continuity in the switch, no amber light in two different switchs that test fine. Everything checks out and I am left to think there is a problem with the instrument panel down where the relay is. What am I looking for at the ground side of the window? How do I check ground at the switch? I took apart the rear hatch interior panel and looked at the ground and hot wire to the glass and all appeared fine. I'm at a loss trying to figure this out...
#2515 of 2529
Re: Defogger stopped working [ryan99] by loosenut
Oct 10, 2009 (7:58 pm)
Reply

Replying to: ryan99 (Oct 10, 2009 5:00 pm)

using the meter,and a handy ground-back at the window,see if there is power..if there is,you have a bad ground-check the other side of the glass-trace it down,and clean the contact-making shure your ground is good..
--if you can dig up a L-O-N-G- TEST LEAD,TRY PUTTING STRAIGHT POWER TO THE GLASS-ON THE POSITIVE SIDE....(MAYBE THEN YOUR AMBER LIGHT WILL LIGHT?)--sorry-caps lock stuck..
--all this sounds like you've got a bad relay..unplug the relay,and with the test wire,unplug it from the glass-gently,-then,go back to where the relay plugs in,and see if there is power at the "output" point,if not,wire is broken somewhere..i have run a extra wire-tucking it in,so it doesn't look bad-just to save trying to trace where a broken wire is..
--have you tried replacing the relay??--if you hear it "clicking",have someone turn it on and off,while you trace it by ear ! ?..
--no power at the glass means a bad relay usually..try the simpler things first,then go for the more complicated..after all,it's just a 12v circut-but it pulls a pretty heavy load..
--if you get it working,and find a few bars in the grid that aren't heating-they sell a conductive-copper colored paint-used to repair defrosters..
best of luck!
#2516 of 2529
Re: Defogger stopped working [ryan99] by loosenut
Oct 10, 2009 (8:06 pm)
Reply

Replying to: ryan99 (Oct 10, 2009 5:00 pm)

resistance at the glass is good,means you've got a circut..to check for ground,ohm meter on a ground to ground wire..while there,see if power side has ground..if so,theres a short..
-the relay has TWO sourses of power..one to activate the coil(the clicking noise),then-and where your problem may be-is a thirty-to-fifty amp fuse that would put power to the window..check owners manual,or the fuse diagram-grouped with things like the heavy fuse for the a/c,and see if that's the trouble..it just might be !
lots of luck!
#2517 of 2529
Re: Defogger stopped working [loosenut] by ryan99
Oct 11, 2009 (10:50 am)
Reply

Replying to: loosenut (Oct 10, 2009 8:06 pm)

Thanks for all the help! Trying to keep it simple I rechecked fuses in the power distribution center under the hood and found a blown 30 amp fuse titled HBL. It didn't look blown but it was. popped in a new one and I am good to go! Not sure why it blew though...
#2518 of 2529
Re: Defogger stopped working [ryan99] by loosenut
Oct 11, 2009 (7:45 pm)
Reply

Replying to: ryan99 (Oct 11, 2009 10:50 am)

well;you saw where it took me TWO post's to thumk it through !,but-we figured it out !..HORRAY ! !..
-fuses blow from a power surge..coulda been something got wet,and pop !..that's why they are there..
you have made my day !..
i helped someone figure out a problem,and a kinda complex one at that !...so,does the amber light work now?
also,there is a timer on that circut,think it runs 15/20 minutes,to keep it from gettin too hot!
 
was the fuse under the hood?-right or left side?,just to help the next person who runs into this problem!
have a great day!
#2519 of 2529
Re: Defogger stopped working [loosenut] by ryan99
Oct 12, 2009 (3:44 pm)
Reply

Replying to: loosenut (Oct 11, 2009 7:45 pm)

Good Idea! The fuse is labeled HBL and its in the power distribution box under the hood on the passenger side. I checked these fuses once before but they all looked good. I just started trying to figure out what they all went too and figured out HBL was the defroster. Your detailed advice was good and I was going to get into it but decided to recheck those "big stuff" fuses you were talking about. I have been obsessed with this for weeks now! looking over diagrams and testing things with a multi meter. I'm glad to have it fixed and it is an otherwise terrific Jeep. Thanks again!
#2520 of 2529
Re: Defogger stopped working [ryan99] by loosenut
Oct 13, 2009 (8:53 am)
Reply

Replying to: ryan99 (Oct 12, 2009 3:44 pm)

i humbly accept your praise,..
-this is EXACTLY why chat boards like this were set up,and why they are sucesful..despite my horrid spelling(spellcheck? what's that??)haha..
now,if i could just find someone to help me with the noise in my rear axle-short of replacing or rebuilding,witch is where i'll probably end up..
glad we got your electrical problem sorted out,and-who knows?,maybe helped someone else out there just following our blog ? ! have a great day !
#2521 of 2529
Re: Defogger stopped working [ryan99] by loosenut
Oct 13, 2009 (9:00 am)
Reply

Replying to: ryan99 (Oct 12, 2009 3:44 pm)

when you were checking the fuses,were you pulling the fuses out,and visually inspecting them,or-using the "circut tester-light"-or the multi-meter,testing the "tabs" -the metal at the top of the fuse?..that's the way to really test a fuse,because-as you found out-it might "look" fine,but-if power isn't flowing,it don't work !..
#2522 of 2529
Re: Defogger stopped working [loosenut] by ryan99
Oct 14, 2009 (5:20 pm)
Reply

Replying to: loosenut (Oct 13, 2009 9:00 am)

I was pulling them out and looking at them.
#2523 of 2529
2000 Jeep Cherokee Front end by kate35
Nov 02, 2009 (3:10 pm)
Reply
My Jeep has a sound coming out of the front driver's side wheel area.. I have had the crank shaft removed and did not fix the problem, had the rear differential (not sure why) replaced and did not fix the problem, transfer case was checked and all was fine there.. the sound does not appear to affect the operation of the vehicle, it just sounds like the front end is about to fall into a million pieces. I can also stop this sound by applying the brakes. It happens on the acceleration of the vehicle from a stop to about 20 mph. Turns are worse sounding also.. any suggestions?

Messages Page 253 of 254
1
...
248
249
250
251
252
253
254
Prev
Next
Last
Go To Msg #
Search This Discussion
To POST a message, please Sign In.

New? Join Now!

Forum Tools

Please sign in.
Email Address:

Password:

Forgot Password?

Search Forums

Enter Keyword(s)

Advanced Search

Browse by Vehicle



View All Vehicles
Advertisement
Ask the Community
See What People Are Asking

Browse by Board

Browse by Topic


View All Topics

Today's Chats

Advertisement