Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum > HELPPP! Same common Problem

Join Wrangler Forum Today

Thread: HELPPP! Same common Problem Reply to Thread
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
04-22-2013 11:10 PM
TjMudMan Good news guys. All problems are All gone i had to replace just the wire that connected from the distributor cap into a wire that ran into the pcm. 40 bucks from advance and my jeep is out back on the road waving to jeep buds thanks to all who had any input or suggestions. I hope this thread helps others.

Its a jeep thing.. You wouldnt understand
04-22-2013 05:17 PM
Motowithy Yeah I saw the positive to negative terminal thing and was going to avoid replying but since someone else has brought it up. My sister did that on her corolla when she tried putting a new battery in. Fried the main fuse along with half a dozen other things. Mechanic fixed it and then a month later she blew the motor because there was no oil in it, lol. Not sure what you have going on but I really hope you didn't switch the terminals around on the battery. Good luck
04-22-2013 04:24 PM
sevenservices im still stuck on the part where you said you hooked the + to the - or - to + to reset the ECU. I tell you one thing, if you tried hooking up the battery backwords for some reason there are a lot of things you may have fried.

Disconnect anything he hooked up and test it. I'm leaning towards the terminal connections. They should be scuffed up with sandpaper or a wire brush and tightened down really good.
04-22-2013 04:15 PM
carlosfangdango Brn/yel is sensor ground and on of the speaker wires did splice these for the rear speaker. Putting an audio level output into this circuit
would screw with the engine sensors and prevent a spark and may explain why the cluster works with the distributor unplugged
04-22-2013 03:47 PM
flflash I'd recomend kickin your buddies arse then finding someone local that knows what he's doing to determine whats happened to your Jeep!
04-22-2013 03:02 PM
RUBI 4 MY MRS Not likely the PCM from what you described so far.

Do your wipers & turn signals work? If so then did you do the checks that I described in post 14?

If no wipers/signals then be sure to check fuse 3 in the PDC then check if you are getting power to the ignition switch from fuse 3 which is the red wire at the ignition switch connector.
04-22-2013 03:02 PM
Originally Posted by TjMudMan View Post
is it possible i need a whole new pcm?
Did you put it back to the way it was before your buddy started working on it, as several of us have suggested?
04-22-2013 12:06 PM
TjMudMan is it possible i need a whole new pcm?
04-22-2013 09:30 AM
TjMudMan thats the thing, the only thing we did was take off the dash, unplug the radio, cut the wires, and wired the new one in... thats it
04-22-2013 08:28 AM
carlosfangdango If all else fails, take everything you added out and try to get back to square one. If it worked before there must be an error unplug anything you added, if you spiced isolate them all.
04-22-2013 08:11 AM
TjMudMan fuse 25? i dont see a 25
04-22-2013 08:10 AM
TjMudMan He did it all but hes done it all plenty of times and knows what hes doing. i just dont know what else to do, im going to replace all the fuses today, my battery is fine.

Thanks again for all the replies
still not running any other ideas before it goes to the shop?
04-22-2013 07:10 AM
carlosfangdango I see the speakers and the cam sensor both have a brk blue and white cable, did you also mess with the speakers and tap the wrong cable
04-21-2013 09:20 PM
TjMudMan Yes we used a harness that plugs into the factory harness
04-21-2013 11:17 AM
2000wranglerguy check fuse 9 and 12 too. pcm power...
04-21-2013 11:13 AM
2000wranglerguy if your not getting any power to the spark plugs, cluster, fuel pump then I would have to say check all of your fuses. I didn't think your battery was bad because it still cranks. I would also take the radio out until you figure out whats going on. discount the battery and remove the radio. Did you guys use a radio harness that plugs into factory harness? Check fuse 1,3, 15 and 25 those are all on the radio circuit, I just looked at the wiring diagram.
04-21-2013 10:49 AM
TjMudMan Thanks everyone for the replies! ill have the battery tested today, also when i went out to see what was going on with it, i unplugged the distributor cap wire and all my gauges worked? then i plugged it back in and they all stopped working again?
still confused, still not running. any help is appreciated!
04-20-2013 08:14 PM
ErbTJ Same as everyone is saying i would check the battery first tough i had one go out on me with no warning and still had electricals but couldn't even jump it. Fuses would also be a possibility
04-20-2013 08:43 AM
GoodLife Take your battery to autozone and have them test it. I was on a road trip and stopped for gas. When I got back in and tried to start it, nothing happened. I had to hitch a ride to a parts store to replace it. Also, The connectors on fuses can oxidize and stop getting a proper connection. Pulling/pushing them in and out several times will scrape of the oxidation and allow for a good connection.
04-20-2013 07:56 AM
ChaddG My guess is fuses first, check the one that powers the fuel pump.
if the engine is turning over, and not firing off, check for spark. take a plug wire off and see if it grounds when it is turned over.
next check for fuel.
if you went off roading, check to see that all your wires are connected. make sure the wires aren't broken going to your fuel pump.

Like these guys said, can you jump start it?
sometimes a starter will turn over, but not have enough life left in it to start the vehicle.

Here are some thoughts and areas for you to explore if you haven't already gotten it started.
04-20-2013 06:25 AM
carlosfangdango Don't confuse voltage with current. One is potential(voltage) the other is capacity(amps). If one of the cells in the battery has collapsed,there are 6 as each cell is 2 volts, you will still see potential but when you try to consume there is no capacity. There is significant difference in current between a radio and a starter. That said the starter is always hot it waits to be engaged by the solenoid, is the solenoid engaging. If not it could be the solenoid or any of the relays that are also in the circuit. These relays are in turn controlled by switches such as the gear position or clutch switch. These also have there own power feed fuses. I only have. 97 wiring diagram but happy to fault find if you can show a diagram.
04-19-2013 06:53 PM
Jerry Bransford There are two fuse panels, one behind the glove box door & one on the passenger-side fenderwell in the engine compartment. I suspect there is a blown fuse that you missed checking.
04-19-2013 06:49 PM
RUBI 4 MY MRS Radio still works, right?

Go to the fuse block behind the glove box & check fuses 10 & 11. If good (test them, don’t go by “looks”), turn the key on & see if there is power going TO those fuses by pulling them out & see if one of the terminals for each fuse has battery power. If not then the ignition switch is bad.
04-19-2013 10:55 AM
Wattapunk A bad battery will not have the cranking amps to start the Jeep but enough juice to run the lights/radio. Pull your battery and have it load tested at Autozone.
04-19-2013 10:46 AM
TjMudMan but if the battery is bad, wouldnt my radio not even turn on?
04-19-2013 10:43 AM
joebarlow65 have you used a battery that is known to start another vehicle? i had a problem on my motorcycle once that the battery showed 14v but it wouldnt crank or would act like the battery was dead. turns out the battery was bad and it showed 14 when there was no draw but as soon as there was draw it went to nothing.
04-19-2013 10:41 AM
TjMudMan i did that took them both off i even connected the ppositive to the negatice to reset the ecu didnt do anything cleaned the crap out of them
04-19-2013 10:38 AM
Wattapunk I would start by taking off the battery terminals and wire brush it clean then tightened them well. A good battery with poor connections will cause similar issues.
04-19-2013 10:28 AM
TjMudMan oh and also after he put it in, the jeep would crank just not start, and the radio worked just fine
04-19-2013 10:27 AM
TjMudMan the jeep radio wasnt palying for an hour im saying it was turned off and then we did all that

and i checked all the fuses, nothing is blown, i even switched the relays around and theyre all fine,
he used a harness
could it be my computer is fried?

i checked the battery and it was reading about 15 i know thats more than normal but why?
im just stumped
Thanks for all the help!
This thread has more than 30 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 10:08 AM.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC