Last post on Nov 07, 2013 at 9:41 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee
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Jeep Grand Cherokee, Electrical, SUV
#558 of 735 Re: 1996 jeep grand cherokee electrical trouble [melbistylz]
Oct 22, 2011 (4:32 am)
To melbistylz, regarding the PCM. I originally posted with a intermittent, now fulltime issue with the remote door lock and gradual loss of speakers in the stereo system. I had done some research in the Jeep shop manual and suspected that the PCM was the culprit for both issues. Both the remote lock/ unlock system .and the stereo speaker wires seem to be run through the PCM. Can you respond to my suspicion and offer a solution if possible? If you need more info, please let me know. Your thoughts would be much appreciated. I can give you my email in required. Thanks!
#559 of 735 Re: 1996 jeep grand cherokee electrical trouble [jrmcarthur]
Oct 22, 2011 (2:46 pm)
There are two small screws in front of the PCM. Remove them. They are located under the 3 PCM harnesses. Also on the bolts that gold the PCM to the firewall there's one on the right side and two on the left. Remove the bottom left. Then take an old shirt and stuff it behind the PCM to prevent it from grounding out to the firewall.
This is how far I went. After expieriencing the same electrical issues, my crank position sensor went bad all of the sudden. Then the interior lights wouldn't go off. Eventually the car backfired blew my muffler round as a balloon. I was replacing everything including the ignition switch that locked up. Distributer, roter, basically bandages, then being the computer geeket that I am figured that the PCM is sending the wrong signals. I checked the PCM and noticed that the front cover is actually the MOTHERBOARD!!! Wow even I know this should be protected by a copper box or something. Well after removing the two torque screws I turned the PCM upside down and my car started stronger and I noticed that I actually get better gas milage. Does any of this make sence? I'm kinda replying fast so I don't have time to proofread my reply.... If you need a pic let me know.
#560 of 735 Re: Interior lights stay on. [barryz]
Oct 23, 2011 (11:11 am)
I know your post is over a year old but I had the same exact problem. It is a bad sensor at the door keyhole. I only have a keyhole on the driver's side. Take the door panel off and you will see wires going up to the keyhole, simply unplug it from the harness, PROBLEM SOLVED! The only downside to this is you can no longer disarm your alarm with the key, you MUST use your remote to disarm. The bad sensor was telling the car the key was there to get in, it would turn the interior lights on and disarm your alarm. Hope this helps anyone else who may be having this problem.
#561 of 735 Re: 2005 Jeep Grand Cherokee Laredo-a crappy Chrysler product! [architectkmp]
Oct 24, 2011 (4:56 pm)
I had the Transmission Control Module replaced at a Jeep Dealership to correct the slipping issue.
As for the lights flickering issue, I had the Jeep Dealer also replace the multi switch (the turn signal/lights control) and that did the trick...you can tell the difference in how firm the new switch is compared to how loose the old one felt.
One last note to anyone trying to fix anything on their own...make sure you buy original Chrysler/Jeep parts versus anything from AutoZone or a place like that. According to my mechanic, Jeep products don't do well with any parts that are not original Jeep.
#562 of 735 Re: Jeep Stalling [mech3]
Oct 25, 2011 (1:53 am)
I too am also a female, if you put the key in the ignition and turn it forward ( don't start it) just to the on position then off three times within 5 sec. So turn forward, back, forward, back, forward, back. The check engine light will flash and the odometer will show some numbers. Write the numbers down the last number being 55. End of codes. Then google it on your computer: "jeep Cherokee Error codes (numbers) and you will find there are tons of websites that have the codes listed. Then you will know what the problem is. But the PCM is located under the hood, passenger side on the other side of the glovebox.
#563 of 735 1996 Jeep Grand Cherokee doing all kinds of wierd electrical stuff.
Nov 01, 2011 (1:38 am)
My 1996 Jeep Grand Cherokee was running fine, then one morning while taking my kiddos to school the speedometer started going crazy, bouncing all over the place. A few minutes into this the rest of the gauges started to do the same thing and it started to idle really weird like I was running out of gas, but there was still half a tank left. I did notice that the volts were reading half of what they usually do. I tested the alternator and battery, both are fine. My local dealer hasn't a clue what it could be. Can anyone please help me as to what this could be? The snow is coming soon and I have been without a vehicle for 2 months. Any suggestions would be great. Thanks for your time and Jeep wisdom!
#564 of 735 Turn signal issues.
Nov 01, 2011 (8:47 am)
A strange problem poped up with my 2001 Grand Cherokee. About 3 weeks ago the left turn signal stopped working. I thought that I would check the bulbs that weekend, but I forgot about it and a few days later I noticed that it was working. Now it will stop working and the next time I drive it, or later on the same trip but sooner or later it will start working. I can not pinpoint anything that I can think may be causing this. Has anyone else seen anything like this?????? Thanks for you help. Jerry.
#565 of 735 Re: Turn signal issues. [sorterguru1]
Nov 01, 2011 (9:41 am)
replace bulb holders in tail light they go bad bout 10 bucks each
#566 of 735 Re: electrical problem [rwfanatic]
Nov 01, 2011 (8:02 pm)
I know you posted this a long time ago but I just wanted to let you know how much it's helped me... I had the EXACT same problem. I was happy to read how simple it was to reset the system. Just unplug the ground, wait a minute, then reconnect. Everything's fine now.
Now all that's left to do is change the heater core, Blend doors and Hydraulic radiator fans' solenoid and my 2002 G.C. will be like new :~1 Guess that's why Jeeps acronym is Just Empty Every Pocket.
#567 of 735 Re: 1996 Jeep Grand Cherokee doing all kinds of wierd electrical stuff. [aboutmyjeep]
Nov 01, 2011 (9:52 pm)
I have a 1996 Jeep Grand Cherokee and would do a slipping thing, the gauge would go up and it was like a stand still, then it would reengage itself. I thought I was out of gas like 3 times and had it towed the last time, cuz it was just chugging and wouldn't drive. It was a simple wire on the Throttle Position Sensor, the wires were exposed/split open. You could either need the wire replace or the TPS replaced or both. Jeep has been running fine now. TPS is the brains to telling your vehicle how much airflow, and fuel delivery to your computer of your vehicle.When its defective, it causes intermittant burst of fuel from the injectors and an unstable idle because the PCM thinks the throttle is moving. So it is a very important part. Its located right under the throttle body at the end of the shaft right on top of your engine. It can affect your gas mileage and how your vehicle runs. The wire is like $5 and if you do need to replace the TPS its about $35, plus labor. Shouldn't take longer than 20-30 minutes to do. Good luck!