Question about 1994 Jeep Grand Cherokee

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1994 grand cherokee check engine lite doesn't come on and car wont start

Having problem with anti theft at same time. remote doesn't help nor using key in door' drivers or pasenger

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  • Jeep Master
  • 17,970 Answers

You will need scanned the computer car or re-synchronized your theft system.

Posted on Jan 14, 2013

  • 2 more comments 
  • James Brune Jan 16, 2013

    how do i re-synchronized my theft system.on a1994 grand cherokee

  • James Brune Jan 16, 2013

    what type of skaner will a basic unit work

  • ZJ Limited
    ZJ Limited Jan 16, 2013

    OBD I scanner reader, or try truning the ignition key (without start engine); Turn the ignition key On - Off - On - Off - On within 5 seconds Count the number of times the check engine lamp on the dash flashes on and off. The number of flashes represents the trouble code. There is a slight pause between the flashes representing the first and second digits of the code. Longer pauses separate individual two digit trouble codes.

  • ZJ Limited
    ZJ Limited Jan 16, 2013

    Example: Lamp flashes 5 times, pauses, and flashes 5 more times. This indicates a code number 55. A code 55 will always be the last code to be displayed. This will indicate the end of all stored codes. Also, the code numbers will be displayed on the vehicle's odometer. Each number will be displayed with a slight delay between numbers. Again, code 55 will always be the last code to be displayed.

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Posted on Jan 02, 2017

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  • 41 Answers

SOURCE: Starting Problem with 1994 Jeep Grand Cherokee

Assuming I understand your problem correctly, it sounds as if the car will only start once the check engine light comes on.  The check engine light is controlled by the PCM (powertrain control module; or computer) which is also responsible for basically all engine operations including fuel delivery, ignition, emissions, and so on.  If this light is not coming on, it means that the computer is not getting power.  If the computer is not getting power then it won't start.  The fact that you hear the relays click on when the light comes on is another indicator the the computer is not getting power as it also supplies power to the ASD (Automatic Shutdown Relay) which in turn supplies the power to the fuel and ignition systems.  Check the ASD relay located in the power distribution center, if it is the same relay number as another un-important system, then swap it out to see if that helps.  Make sure the plugs going into the computer are tight.  The delay in the power going to the PCM sounds like a stuck relay, have someone tap the relays when the light is off to see if comes on.  It is also possible that the PCM itself is failing.

Posted on Dec 16, 2008

  • 7 Answers

SOURCE: 1999 jeep grand cherokee / 4.0 L.

I had a skim module go out in mine in the ignition, and I have a 2001. It's a 100 part, and now it starts fine.

Posted on Sep 10, 2008

goalie39
  • 469 Answers

SOURCE: check engine lite is on. how can I turn it off?

You will need an OBD (onboard diagnostics) handset to read and or reset the codes. It would be good to know why the lamp came on to aviod and break downs possible in your future. They are available in any automotive store or even the auto section of many major Dept. stores. they generally include a code book or sheet to decode the reason for the light coming on. you may not be able to reset the light with out resolving the issue causing it to come on.

Posted on Apr 13, 2009

  • 1 Answer

SOURCE: 1994 Grand Cherokee Jeep wont start

It is likely one of your battery cables loose. Same thing just happened to me today. What you need to do is first lock the doors, and close them. Then you need to disconnect, and reconnect the battery cable, then if the security lights still blink you must use your key to unlock the door, then it should stop blinking, and start just fine.

Posted on Jun 02, 2009

  • 159 Answers

SOURCE: 2000 Jeep Grand cherokee Laredo

sounds alot the the pcm it controls the fuel pump and ign system but the anti theft would keep it from starting because the key has a transponder in it programmed for that vehicle and that would kill all ign if triggered

Posted on Sep 27, 2009

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The following wiring diagram and electronics circuit contains detail schematics of The 1994 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

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Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

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Hope this helps. Your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

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The following wiring diagram and electronics circuit contains detail schematics of The 1996 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Try HERE.

Also, remember that here can find the Jeep Grand Cherokee Service & Repair Manual.
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Como desativar o anti furto da cherokee zj 1994


Oi meu amigo, eu espero que você pode me entender em Inglês, sugiro verificar este procedimento para resolver o seu problema, o trabalho em modelos Grand Cherokee: Jeep-Grad-Cherokee-Anti-Theft-System

Boa sorte (lembre-se avaliado esta resposta).


My friend, I hope thast you'll can understand me in english; I suggest check this procedure for solve your problem, work in Grand Cherokee models: Jeep-Grad-Cherokee-Anti-Theft-System

Good luck.

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