Question about 2002 Jeep Wrangler

1 Answer

Ecm keeps going out i have replaced it 5 times now

I would like to know if ther are any common problems that would cause it to keep shorting out always same area the alt regulater alt is new as is battery

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Jeep Master
  • 6,982 Answers

Two items to check...make sure you have a good body ground (run a direct line to computer grounds if you need to) Excessive resistance there can overheat regulator. Other thing would be to make sure the battery is fully charged using an external charger, to reduce demand on the charging circuit (alternator is not designed to charge a battery...if partially charged, the system works overtime but will not ever achieve full charge. There is a way to wire in a external regulator, but it will keep the check engine light on and in some states it won't pass inspection.(before you ask, I had the schematic for this but can't find it) I have no idea what they were thinking, putting the reg. in as part of the computer.Next, they will make the directional bulbs only replaceable with the engine!!!

Posted on Jun 16, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

ECM 1 fuse keeps blowing on my 94 S10 blazer,,what will cause this problem?

A bad relay or a shorted wire. Pull the relay, turn the ignition on. Fuse pops, bad wire from the ignition switch to the fuse/relay panel. If it doesn't, swap relays in the panel. Turn it on, if the fuse pops, bad wire to the ECM or the ECM has shorted internally. If it doesn't pop, replace the relay.

Jul 30, 2015 | Cars & Trucks

1 Answer

Why does my ECM-I fuse keeps blowing?

Did you check the crank sensor wire, it may be hitting the hot exhaust. does the wire going to fuel pump have a problem and is shorting out. ECM 1 ..... then there are 5 components that this fuse feeds
1-crank sensor
2- all injectors
3- ECM
4- electronic ignition control module
5- ignition coil - check for a bad wire in these areas. Hope this helps.

May 21, 2014 | 1997 Chevrolet Astro

1 Answer

2008 Dodge caliber. 1.8 sxt. I have 4 error codes. P0420, P0573 and P0113. The vehicle doesn't go into gear. I put it in any gear and jump off the clothes but it just idles. I read on automatics a faulty...

code p 0420 is for faulty cat converter===causes cat converter---wiring ---faulty heated oxygen sensor/s ( one in the exhaust manifold before the cat converter)
code p 0573 refers to cruise/brake switch====causes --wiring short to positive ---cruise/brake switch---ECM
code p 0113 refers to air intake temperature (AT) sensor--circuit malfunction====causes --wiring open circuit /short to positive ---wiring short to ground ---ground wire defective --- IAT sensor ---ECM
you are missing the last code and from you description of the problem , I suspect that it will refer to the torque convertor operation===causes --problem in the wiring--torque converter clutch servo/ solenoid ( most likely)-- TCM module

Oct 25, 2017 | Cars & Trucks

2 Answers

Injectors not opening or "flashing" on 1989 camaro

Ok You Have good connection to the ECM but did you check to see if you have good connection from ECM to the injectors or do you have signal from ECM going out to the injectors? Just because you have power going to the ECM doesn't mean it is good, when you read the resistance on the ECM all you did was verify that your coil in the injector was good, it did that the ECM was good. Sounds like you need to replace the ECM if you decide to replace the ECM be sure that you grounding paste/Thermal Paste when you do because if you do not your will fry the ECM in a very short period. But also remember that you can buy a brand new one and it not be good, which is why there is the warranty on the automotive parts you purchase at the auto parts store..

Feb 20, 2011 | 1989 Chevrolet Camaro

2 Answers

2005 nissan almera,1.5letre.. fault code po725

P0725 NISSAN - Engine Speed Signal

The P0725 Codes is triggered when TCM does not receive the engine speed signal from ECM.

The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send signal to the Transmission Control Module (TCM).

- Engine Light ON (or Service Engine Soon Warning Light)

Possible causes:
- Open or shorted CKP sensor circuit condition
- Poor CKP sensor electrical connection
- Check communication error between the ECM and TCM
- Failed CKP Sensor

Possible solution:
Very common problem with Nissan vehicles, usually replacing the Crankshaft Position sensor takes care of the problem.

Keep us updated.

Feb 12, 2011 | 2005 Nissan Altima

4 Answers

P0601 diagnostic code what is the mean , or whats is the problem

P0601 - Internal Control Module Memory Check Sum Error

Basically that means that there is an interal fault in the Powertrain Control Module (PCM). There have been many reported PCM failures on Chrysler/Dodge products although it is possible for this to happen on any vehicle. In Dodge/Chrysler products, a P0601 trouble code means that a serial communication failed inside the computer at least 6 times.

Symptoms: Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light. Typically the engine runs fine, gauges work, etc.

Causes: A code P0601 in most cases means the PCM has gone bad. This is possibly due to a short-circuit inside the PCM. Or, if you disconnect the wires/connector from the PCM while the battery is still connected, that may also cause this code.

Possible Solutions: With a P0601 OBD-II trouble code, the most common fix is to replace and reprogram the PCM. In a few cases the dealer may be able to reflash the PCM and get it working. But more than likely the PCM will need to be replaced and reprogrammed (we recommend you take it to a dealership for this). The good news is it *may* be covered under your emmissions warranty. So even if you're out of bumper-to-bumper warranty or powertrain warranty, check your warranty guide or dealer to see if this is covered.

Other people have reported that they cleared the code only for it to return again and again. Keep in mind that most shops can replace the PCM but not all can program it.

Other PCM / ECM Codes: P0602, P0603, P0604, P0605, P0606, P0607, P0608, P0609, P0610.

Hope this help to solve it (remember rated this).

Aug 03, 2010 | 2001 Dodge Stratus

1 Answer

The ecm fuse

Hi, this could be caused by a short circuit in the ECM or it more commonly found a short circuit in the alternator. Disconnect the battery wire from the alternator, make sure that the wire does not touch any part of the body or engine. Replace the fuse and see if it still blows the fuse. If the problem is solved, replace the alternator, if nor you will need to test the wires for a short circuit.

Nov 09, 2009 | Cars & Trucks

3 Answers

Ecm fuse keeps blowing

just fixed this problem, change your fuel pump module, fuel sending unit shorts out on fuel level swing arm blue wire... unfortinately you must replace it as unit because of the design, fuel pump and tank guage fuel level sending unit are a one peice item, fuel tank has to come out to change unit, about a $ 700.00 repair too... fuel pump module runs about 350 to 700 $ depending on aftermarket or factory, try to find one with a lifetime warranty even if it is $ 50.00 more worth it..labor is about $ 250 to $ 400 depending on shop labor rate... definate problem though I ahve no doubt, common problem on GM... please rate my help, thanks...

Aug 06, 2009 | 2002 GMC Yukon XL

1 Answer

1996 GMC 1500 Pickup. Keep blowing 20A ECM-B fuse. Replaced Ign Mod,Coil,Cap/Rotor & pickup. Any Ideas Out There? Afraid to go any futher...dont want to ruin these new parts!

if you keep blowing a fuse there's a good chance it's not a faulty part but a short in the main harness most likely under the dash where all the connectors tend to get brittle over time and short out constantly. also check the ecm connection there is a 60 pin type.

May 19, 2009 | GMC Sierra 1500 Cars & Trucks

1 Answer


This is almost always caused by a wire in the engine harness being rubbed through and shorting to the engine, check the harness and look in places where the harness moves allot. I did this kind of work for 30 years and this is the most common issue for the ECM fuse to blow.

Nov 24, 2008 | 2000 Chevrolet Venture

Not finding what you are looking for?
2002 Jeep Wrangler Logo

115 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

81400 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22359 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides