Major Electrical Issues

Asked by 95ZJMan May 24, 2018 at 11:06 PM about the 1995 Jeep Grand Cherokee Limited

Question type: Maintenance & Repair

I need help figuring out whats wrong with my Jeep. Its a 95 ZJ 4.0l 4x2 Auto Limited. I have been having issues with my CEL coming on and giving me codes for voltage too high and too low. When the light comes on the gauge will fluctuate between 1/4 and full over charge. Recently I went out and started the truck, all was well. Came out to leave and the found that most of the electrical components didn't work. I only have dash lights, headlights,  running lights, front wipers, and the instrument cluster does work. I have no heat/ac, no VIC, no radio, no interior lights, no turn signals, no flashers, no brake lights, and no rear wiper. I have no idea where to start in diagnosing this. Jeep isn't legally driveable at the moment and I need it to be.

1 Answer
43,890

Hornet_2497 answered 6 years ago

Voltage dropping makes me think of a short. Voltage spikes make me think of an over charging alternator. You may have to disconnect the battery to reset the computer. I would start by testing the voltage at the battery with engine running. If it's much over 14 volts, there's the problem. Some Jeeps have an ambient temperature sensor near the battery that tells the alternator how much voltage is enough, based on air temp. That may be defective if it has one. Not sure.

Mark helpful

Your Answer:

Related Questions

  • Major Electrical Issues 1 Answer

    I need help figuring out whats wrong with my Jeep. Its a 95 ZJ 4.0l 4x2 Auto Limited. I have been having issues with my CEL coming on and giving me codes for voltage too high and too low. When the lig...

    1995 Jeep Grand Cherokee Limited

    -

    Maintenance & Repair

  • Electrical issues 3 Answers

    My 2004 jeep grand Cherokees electric components won't stop working. When the key is out the engine for hours you can still roll windows up and down and windshield wipers stay on if not turned off ...

    2004 Jeep Grand Cherokee Columbia Edition 4WD

    -

    Maintenance & Repair

  • Electrical issues 1 Answer

    The interior overhead lights aren't working, the power door locks aren't working, the front windows won't work, and the radio doesn't turn off when I exit the vehicle. What can cause this? I checke...

    2007 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • Electrical issues 3 Answers

    So I'm going to lost off the problems and hope someone in this wj community is semi active 1. A while ago my cruise stopped working, I can hit the power switch to energize the module and the light o...

    2004 Jeep Grand Cherokee Freedom Edition

    -

    Maintenance & Repair

  • 1999 jeep grand Cherokee stalling rough idol now won't start. PCM? Fuel pump? Electrical issues. HELP! 2 Answers

    Please help! I have a 1999 Jeep Grand Cherokee V8 4.7L. I bought it at and auction in Sacramento California couple months back. They said it had an electrical issue possibly. As soon as I hit the fi...

    1999 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

Shortcuts

Search Jeep Grand Cherokee Questions

CarGurus Experts

  • #1
    Hornet_2497
    Reputation
    8,960
  • #2
    Gene Arnett
    Reputation
    7,010
  • #3
    thejeepdoctor
    Reputation
    6,560
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Jeep Wrangler
133 Great Deals out of 5,096 listings starting at $3,081
Used Jeep Cherokee
90 Great Deals out of 1,663 listings starting at $3,950
Used Ford F-150
303 Great Deals out of 15,101 listings starting at $1,712
Used Toyota 4Runner
9 Great Deals out of 313 listings starting at $9,700
Used Ford Explorer
83 Great Deals out of 2,027 listings starting at $2,999
Used Chevrolet Tahoe
20 Great Deals out of 879 listings starting at $5,995
Used Chevrolet Corvette
27 Great Deals out of 1,034 listings starting at $15,871

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.