2002 Jeep Grand Cherokee Laredo

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  #1  
Old 07-12-08, 08:47 PM
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2002 Jeep Grand Cherokee Laredo

I seem to be having an electrical problem with my Jeep. This morning the power windows stopped working, the air conditioner would not blow cold air (the fan is working ok), the radio controls on the steering wheel stopped working and the overhead computer does not display the temperature. Any suggestions??? Thank you for your time.
 
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Old 07-12-08, 08:50 PM
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Hi! Sounds like you blew a fuse. The fuse panel should be located on the drivers side dash area...sometimes you have to open your door to locate it.

It will probably be a '20' amp fuse. This fuse controls all the items you described.

Is your cigarette lighter working? I had a problem with a coin falling into the lighter socket causing the fuse to blow.
 
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Old 07-13-08, 06:17 AM
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Wiggle the ignition key....If your accessories come back to life, suspect a bad ignition switch......
 
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Old 07-27-08, 05:21 PM
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Originally Posted by HotinOKC View Post
Hi! Sounds like you blew a fuse. The fuse panel should be located on the drivers side dash area...sometimes you have to open your door to locate it.

It will probably be a '20' amp fuse. This fuse controls all the items you described.

Is your cigarette lighter working? I had a problem with a coin falling into the lighter socket causing the fuse to blow.
I'm having the same issue. Help please... My wife is going to kill me!!!
Here's what happened:
Had a TPS code and changed the TPS about a week ago. No Issues. I wanted to clear the code so I could pass inspection and so we hooked up a diagnostic machine and cleared the codes.
Later got into the car to find the AC not blowing cold air (blower, it's controls and the A/C light on dash work fine), the power windows will not work from any door and the temperature on the overhead displays as "--" although the rest of the overhead seems functional.
Even though neither the owners manual nor this display (http://www.wjjeeps.com/fuses.htm) say nothing about window or AC fuse inside the car (DS floor) I checked all of the fuses and made sure that any fuse with power has power on both sides.
The box under the hood has a 50amp (#12 per http://www.wjjeeps.com/misc/power_dist_ctr_02.jpg) and the fuse has power and seems fine.
I also confirmed that the AC Clutch fuse #21 and breaker #36 (same diagram) we working ok.

Help, Please!!!
 
  #5  
Old 07-28-08, 05:52 PM
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Originally Posted by 02_Cherokee View Post
I'm having the same issue. Help please... My wife is going to kill me!!!
Here's what happened:
Had a TPS code and changed the TPS about a week ago. No Issues. I wanted to clear the code so I could pass inspection and so we hooked up a diagnostic machine and cleared the codes.
Later got into the car to find the AC not blowing cold air (blower, it's controls and the A/C light on dash work fine), the power windows will not work from any door and the temperature on the overhead displays as "--" although the rest of the overhead seems functional.
Even though neither the owners manual nor this display (http://www.wjjeeps.com/fuses.htm) say nothing about window or AC fuse inside the car (DS floor) I checked all of the fuses and made sure that any fuse with power has power on both sides.
The box under the hood has a 50amp (#12 per http://www.wjjeeps.com/misc/power_dist_ctr_02.jpg) and the fuse has power and seems fine.
I also confirmed that the AC Clutch fuse #21 and breaker #36 (same diagram) we working ok.

Help, Please!!!
The Fix!!

So we hooked a Snap On diagnostic machine and everything read normal except for one mode (Data mode or something like that) it could not make a connection and couldn't even tell the key was on and engine running. At this point we're thinking 'Dealership here we come!'.
Then my brother in law decides to try trick that works on some of the earlier OBD systems (OBD came out around 2000). Take off the both battery terminals and touch them together (no not while they're hooked up to the battery), essentially grounding out any power in the computer. Let it sit for 10 minutes, cleaned up the battery terminals (which weren't bad but...) hooked them back up and BINGO! Windows, AC, Temp, Lights flashing when hitting the lock and unlock button! Eureka!
My Brother in Law is a frek'n genius!

I hope this helps someone, maybe the person that began this thread!

02_Cherokee... Out!
 
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Old 07-28-08, 07:26 PM
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The problem will come back...........your BCM is probably on it's way out.
 
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