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Jeep Grand Cherokee Electrical Problems

708 messages,  Last post on May 20, 2013 at 5:24 PM

You are in the Jeep Cherokee and Jeep Grand Cherokee Forum.

What is this discussion about? Jeep Grand Cherokee, Electrical, SUV

Messages Page 67 of 72

#657 of 708 1996 Jeep GC unusual electrical problems by snewp

Jun 27, 2012 (10:01 pm)

Hey Folks,
Ever since I got my Jeep, there have been slight electrical issues, but over the past 5 years they've gotten worse, and more of them. Now that I'm seriously considering getting rid of it (which I don't wanna do) I looked you guys up. Quick, ain't I? Anyhow, the automatic lights will just randomly start flashing. As soon as I touch the panel where the control dial is for the lights, it stops. If I don't use the automatic setting, and just turn them on manually, no flashing of the headlights. I live in the city so I like the automatics - I can get in the house before they shut off. But living in the city could also get me shot if they start flashing when I'm behind someone. My radio never worked right, so I replaced the antenna several years ago, didn't help. Now the CD player doesn't work either. Just barely static. My sunroof won't open anymore. Heated seats don't heat. And now I get a message at night that says my taillights aren't working, but they are. Till I get home from work, the message is usually gone. All the gauges work, windows, work, AC blower works, dash lighting works, security alarm works, power seats work, cruise works, just the freaky things mentioned above.
Does anyone know if there has been a recall for this problem? It seems like a grounding issue. I put a new battery in it last year and nothing got worse at that time. All these things were happening waaay before the new battery except the CD player, and I feel my son had something to do with that. Any words you can offer to direct me would be appreciated.
Steve

#658 of 708 The famous Jeep Electrical problems by corvair024

Jul 13, 2012 (2:48 pm)

I am having the famous Jeep electrical problems again. I have a 2004 Grand Cherokee 4.0L, 103K miles. 3 months ago I had the exact same issues, pulled the boot between the door and found the black wire was broken. I spliced it back together and everything worked perfect until 4 days ago. I checked the black wire again and found my splice had pulled apart. I re-spliced it but this time the problems did not go away. I ran a continuity check on that black wire (and every wire) that goes through the door and found everything to be connected. So I took it to a shop and they double checked all the wiring and even put in a new control unit and still nothing. I have tried the unplugging the battery trick and again nothing. I am starting to run out of ideas here. The black wire was broken once and my splice fixed it. The second time my splice (as well as the mechanics) won't fix it and my mult-imeter reads full continuity all the way to where it is grounded in the engine compartment. I am pretty sure this isn't the BCU gone bad. Any ideas? I listed my symptoms below
 
Symptoms:
-A/C compressor does not kick on
-ALL the windows are stuck up
-Airbag light is on
-Seatbelt light is on
-Dash lights are stuck on high with no dimming
-Horn does not work
-The info center does not read temp or anything else but the compass works
-Dome light will not turn off
 
That is about it. To me this all relates back to those wires running through the door but they were all triple checked and came out ok. Any ideas?

#659 of 708 Re: 01 jeep grand cherokee laredo v8 4x4 [gaj2888] by kyle012012

Jul 28, 2012 (4:18 pm)

Replying to: gaj2888 (Apr 05, 2010 1:52 pm)
Thank you! My windows haven't worked for about a year now. I had previously tried looking at those wires, but I couldn't see anything. I settled on the PCM but let it be. Did a google search and found your post and checked again. It was the black wire on mine which broke completely in half. The orange wire was well on its way. I cut the orange stipped them both and crimped them with copper crimpers. Little electrical tape and everything works great. Thanks again!

#660 of 708 Re: The famous Jeep Electrical problems [corvair024] by misterg53

Jul 29, 2012 (3:54 pm)

Replying to: corvair024 (Jul 13, 2012 2:48 pm)
Check the other doors ,I've had three out of the four doors have broken wires in the boots.There should be a recall on all of the wiring in the doors

#662 of 708 no power to rear right door panel by sfiles1972

Jul 29, 2012 (3:34 pm)

two things first of hello mmy name ios steve i just got a 2002 jeep grand cherokee laredo v8
 three regulators were broke i replaced them one went fine but the right rear one that i replaced theres no power going to the door except the speaker [weird]
i know the reg works cause we powered it with an external source and it went up and down
Do you know what would cause this
 
also i found water in my trunk on driver side and 2-3 inces of water in my spare tire comp what would cause this

#663 of 708 Re: 2006 Jeep Grand Cherokee Problem [morrest1101] by bsemig

Aug 22, 2012 (11:58 pm)

Replying to: morrest1101 (Jun 18, 2008 4:03 pm)
question where the heck is the bcm located on a 2005 GC

#664 of 708 rear light sensing by eltecho

Sep 27, 2012 (2:54 pm)

I have a 1998 jeep Grand Cherokee 5.9
I am having problems with rear light failure
1. all the lights are fully functional.
 
2. I need a schematic showing the wiring for the plugs p1 and p2 on the light sensing module and where the supply voltage is sourced and what the outputs end up feeding, they appear to be on P1-9 wire blu with black tracer
 
3. I know the module has U4791B comparators in it. The comparator outputs pins 3&5 are all 10.5 to 12v- I think this is coming from the module that the output feeds
 
4. I have cleaned all contact and the bulb measure about 1.0 ohm of resistance.
 
5 Can I eliminate this module form the system as it causes more problems than it cures.
 
I appreciate all assistance in advance

#665 of 708 Re: The famous Jeep Electrical problems [corvair024] by msanford

Oct 06, 2012 (5:03 pm)

Replying to: corvair024 (Jul 13, 2012 2:48 pm)
I have a 2004 Grand Cherokee SE V6. 75K miles. Was rear ended 3 years ago and it did minor damage. But the right rear tail light was knocked out. As I left the repair shop the check engine light came on. Took the repair shop a week to figure out it was an O2 sensor. After two sensors he finds that it was a bad wire under the hood. 6 months later the AC goes out and the blower motor sounds like its gonna blow up. 6 months later the right rear window gets stuck down. 3 month after that none of the windows will do anything and the power mirrors don't work. But the good news is that the fan blower is no longer making that awful noise or smelling like its on fire. Seems to me there is an issue with too much load on a circuit. I am glad I found this forum so I could see that there is others out there and my issue is not isolated. Not that I am glad anyone else has issues. If anyone knows of a fix please let me know. I can't keep driving a car that I have no AC or ability to roll down a window. I was told by the mechanic that there was a controller in the drivers door that was bad but I think he's chasing a ghost. Please help. I am taking it to another troubleshooter Monday. I will report the findings.

#666 of 708 2009 Jeep Grand Cherokee - Electrical Issues by metoo12

Nov 18, 2012 (12:41 pm)

I have owned my Jeep since Oct 2010. I have dealt with mechanical and electrical issues since March 2011. I have not had any mechanical or electrical issue since July 2011. The Jeep had less than 25K miles. Now fast forward to November 2012 Jeep has 28K miles electrical problems have re surfaced, the dashboard gets hot to touch whether the radio or heating unit is on or off. Left rear turn signal will not work when headlights are on. Brake lights do not dim. Off to the dealership I go right before a scheduled road trip...

Messages Page 67 of 72

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