Question about 2001 Jeep Grand Cherokee

4 Answers

No start no power on fuses relays and fuses underhood good fuses and relays inside good have power to fuse panel inside jumper wire from power to fuses and powers up and runs dies out when removed

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  • 7 more comments 
  • r_wendel_463 Apr 03, 2011

    do not have a jeep scanner have access to snapon trans shift cable fine

  • r_wendel_463 Apr 04, 2011

    i do not work at jeep and do not have there scanner

  • r_wendel_463 Apr 09, 2011

    no comunication no power and when power panel jumped out and motor running unable to preform any test

  • r_wendel_463 Apr 10, 2011

    jeep still starts when you jump power to fuses and ran as long as the pumper wire stays conected with orwith out the fuse panel pumped scanner gets no comunication

  • r_wendel_463 Apr 11, 2011

    have checked plugs and pins and exposed wiring

  • r_wendel_463 Apr 14, 2011

    i think it is the pcm but not sure

  • r_wendel_463 Apr 14, 2011

    fuse panel inside from hot bottom left spade plug to any fuse in center row that will then power up dash cluster and will start with key turn key off and stays running till you remove jumper wire

  • r_wendel_463 May 09, 2011

    no power to asd relay fuse good and power at fuse

  • r_wendel_463 May 12, 2011

    fuse is good and has power to it no power at relay and relay was changed

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4 Answers

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  • Master
  • 1,702 Answers

Sounds like the auto shut down relay is not powering up, remove the relay and test for power to two of the terminals with the key on if not check the asd relay fuse under the hood ( 30 amp) if the relay has power to both terminals then swap the relay with the a/c relay and see if everything works, if it does replace the relay. if not then get back with me and we will run a test on the power relay circuit, but i bet you will find the relay is not working.

Posted on Apr 14, 2011

  • john nail
    john nail May 12, 2011

    if there is no power to the asd relay but the asd fuse is good then there has to be an open circuit betwine the fuse and the relay trace the wiring harness and look for a rub spot where the wire must be broken.

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  • Jeep Master
  • 7,689 Answers

Hi, if I understand you correctly, you have power to the instrument panel fuse box. And when you run a jumper across the fuse box the car will run. Can you tell me specifically where you are placing the jumper wire to make it run? I'm assuming it will not crank without the jumper, true?

Posted on Apr 14, 2011

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  • Master
  • 5,081 Answers

Most auto zone does the scanning for free.. Check that out.

Also check whether the PCM is working properly.It might be the culprit in your case.

Posted on Apr 04, 2011

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  • INDIRA KUMAR
    INDIRA KUMAR Apr 10, 2011

    Have you checked the battery first?

  • INDIRA KUMAR
    INDIRA KUMAR Apr 11, 2011

    Then there must be some connection problem. Check the wires for any loose contacts or broken wires.

  • INDIRA KUMAR
    INDIRA KUMAR Apr 12, 2011

    Then the only way around is try replacing it with another wiring set and then check it.

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  • Jeep Master
  • 17,970 Answers

Are you check fpr ANTITHEFT system? You need to inspect with DRB3 Jeep Scanner, it is possible you have SKIM module on this system, if so, need to reprogram key to system.

Also, I suggest check the shift cable. Disconnect cable at tranny and move linkage by hand then reconnect cable and see if the cable moves the linkage the same amount.

Keep us updated.

Posted on Apr 03, 2011

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  • ZJ Limited
    ZJ Limited Apr 03, 2011

    Them you need to visit some autozone or autoshop with reader DRB codes to know it.

  • ZJ Limited
    ZJ Limited Apr 14, 2011



    I would have the fuel system pressure tested if it does, if not you got
    some electrical problem. Also I would look at coil, CKP (Crankshaft
    Position) sensor.

    Additionally, check if when your try to start
    the gauges works (fuel gauge and voltimeter); if not, then the engine
    controller (PCM or Powertrain Control Module) is down. It could be the
    controller itself or an outside electrical problem that is taking it
    down. A lost power or ground feed to the module, a sensor ground circuit
    shorted to voltage or a reference voltage circuit shorted to ground
    will all cause the engine controller to go down.

    You will have no
    spark, no fuel pressure, the fuel gauge and voltmeter on the dash won't
    come up with the key on. There won't be any communication with a scan
    tool because the PCM is dead to the world. A common cause for this is an
    internally shorted crank position sensor. This is mounted at about the
    11:00 position on the bellhousing as viewed from behind, and the
    electrical connector comes up to the back of the intake.

    Start by
    unplugging the crank sensor and see if the fuel gauge and voltmeter
    come up. If they do, replace the crank sensor with a Mopar part. If
    unplugging it doesn't make the gauges come alive you'll need to do some
    deeper electrical testing to see why the controller is down. I would
    start with the powers and grounds, then move on to the reference voltage
    and sensor ground circuits. I can help you with that if you've got a
    voltmeter and want to get into some testing while it's acting up.

    Keep us updated.

  • ZJ Limited
    ZJ Limited Apr 14, 2011

    Then definitively you has some electrcal problem there, some borke wire or bad connections; I suggtes check the Jeep WJ Electrical Wiring Diagram Section to look details.

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Underhood Fuse Block 4.2L Engine Except Saab Underhood Fuse Block (2002 - 2005 Early Production) gm-06-42-1628.gif

Underhood Fuse Block (2005 Late Production - 2007) gm-06-42-1629.gif

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