Question about 2000 Jeep Grand Cherokee

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How to bypass the SECURITY system key, so my key will work

My jeep dies and wont start reads there is no key and I reset it to factory settings and it runs for a while then does it again I need to know how to bypass the sensor

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  • _-__-___-_
    _-__-___-_ Aug 07, 2015

    This system can NOT be bypassed, that dream ended in 1999. (poof gone).
    the key must work or it ill NEVER stay running. (ASD relay drops and stalls it will)
    if you lost both keys, (as you get with new car)
    you can not make a 2nd, it takes 2 to make a 3rd, (the FSM and oper. guide covers this)
    the rules are clear in the books.
    call the dealer and ask.
    or call a locksmith that does new cars.
    some can do this, call them first.

    does this help?
    the real show stopper is the 3 key rule.
    read that ...."to make a 3rd key" you.....

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2 Answers

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  • Jeep Master
  • 20,706 Answers

So that key is dead.
so you lost the 2nd key that car came with new?
that it? oops. that means you can not DIY a 2nd key.
oops.
dies parked or running?
Hacking post (sorry you will never hack this SKIM ,eva) so we go to FIX car.... now...
the cars IMMO lamp (SKIM) will glow or flash
if the IMMO kills the engine.
but you have a bad key, and all bad keys drop the ASD relay. even if driving, it can do that.

You can't fix modern cars if you dont have a scan tool. the Innova 3160 can do all jeep codes.
(zero affiliations !!!)
it does all jeep factory codes too and full streaming data.
buy ,barrow, beg, rent one, or ask a shop to..
try scanning it.
post the DTCs you get.
or it's all guess work. $$$$


my guess (wild) is the Transponder part of key is dead. on both keys? lost the 2nd key, sure..
is that it?>
skim facts?
http://www.fixkick.com/Jeeps/SKIM.html

Posted on Jul 30, 2015

  • 5 more comments 
  • haley williams
    haley williams Jul 30, 2015

    on my dash reads a key symbol with a slash in it meaning no key. I can unhook the battery and pull the fuse out and let it set 15 min then hook it up and then press the two buttons in the jeep and turn my key on till it reads system pass self test and that works for a while but it dies in the middle of the road after a while and have to do it all again.

  • Anonymous Jul 30, 2015

    great come back, !
    that battery trick only hides the truth.
    no need do do that. at all.
    key warn, ICON. (is not fibbing!)
    (means skim is not happy, there or other reasons for skim to fail, not scanning the PCM, you miss the facts.

    there can be, key bad (are both?)
    and PCM cant talk to the SKIM module
    or gross communication errors,

    the Pcm works like that.
    the ASD relay drops for 8 reasons
    1 is SKIM goes unhappy mid stride.
    if that happens the PCM drops the ASD
    and all spark and fuel END NOW.

    why no scan it.?
    if you drive and scan at same time
    it will in fact tell why the ASD relay
    dropped out. 8 codes for that
    http://www.fixkick.com/Jeeps/ASD.html

    you can not diagnose modern car lacking a scan too.
    cant. (unless super lucky,) like a lottery win.
    i uses an Innova 3160 to scan at home.

    good luck to you!

  • _-__-___-_
    _-__-___-_ Jul 30, 2015

    does the lamp flash or just glow before cranking????
    flash means.bad key
    solid means gross system faults. scan it.

    it cant be bypassed, in fact, that is the top design goal of this skim system.
    if you need the full FSM page on that system, can post it,
    or you can log into alldata.com and read it.

    scan it. the book shows them all.
    P1685 , invalid key,(use the other key or get a new one at jeep, and program it.)
    P1686 No SKIM BUS Messages Received
    and other PCI bus errors.
    not scanning it , you must work blinds
    (impossible place to be)

  • Anonymous Jul 30, 2015

    ill paste the what you can do page.
    from the FSM. (yes you can scan)

    PROGRAMMING THE SKIM
    (1) Turn the ignition switch to the On position
    (transmission in Park/Neutral).
    (2) Use the DRBIIIt and select THEFT ALARM,
    SKIM, then MISCELLANEOUS.
    (3) Select PCM REPLACED (GAS ENGINE).
    (4) Program the vehicle four-digit PIN into SKIM.
    (5) Select COUNTRY CODE and enter the correct
    country.
    NOTE: Be sure to enter the correct country code. If
    the incorrect country code is programmed into
    SKIM, it cannot be changed and the SKIM must be
    replaced.
    (6) Select YES to update VIN (the SKIM will learn
    the VIN from the PCM).
    (7) Press ENTER to transfer the secret key (the
    PCM will send the secret key to the SKIM).
    (8) Program ignition keys to the SKIM.
    NOTE: If the PCM and the SKIM are replaced at the
    same time, all vehicle ignition keys will need to be
    replaced and programmed to the new SKIM.
    PROGRAMMING IGNITION KEYS TO THE SKIM
    (1) Turn the ignition switch to the On position
    (transmission in Park/Neutral).
    (2) Use the DRBIIIt and select THEFT ALARM,
    SKIM, then MISCELLANEOUS.
    (3) Select PROGRAM IGNITION KEY’S.
    (4) Enter secured access mode by entering the
    vehicle four-digit PIN.
    NOTE: A maximum of eight keys can be learned to
    each SKIM. Once a key is learned to a SKIM it (the
    key) cannot be transferred to another vehicle.
    (5) Obtain ignition keys to be programmed from
    the customer (8 keys maximum).
    (6) Using the DRBIIIt, erase all ignition keys by
    selecting MISCELLANEOUS, and ERASE ALL CURRENT
    IGN. KEYS.
    (7) Program all of the ignition keys.
    If ignition key programming is unsuccessful, the
    DRBIIIt will display one of the following messages:
    ² Programming Not Attempted - The DRBIIIt
    attempts to read the programmed key status and
    there are no keys programmed into SKIM memory.
    ² Programming Key Failed (Possible Used
    Key From Wrong Vehicle) - SKIM is unable to program
    an ignition key transponder due to one of the
    following:
    ² The ignition key transponder is faulty.
    ² The ignition key transponder is or has been
    already programmed to another vehicle.
    ² 8 Keys Already Learned, Programming Not
    Done - The SKIM transponder ID memory is full.
    ² Learned Key In Ignition - The ID for the ignition
    key transponder currently in the ignition lock
    cylinder is already programmed in SKIM memory.

    now you know why not having spare keys
    you will fail.
    keep 3 good keys at all times or fail.(sooner or later)

  • Anonymous Aug 06, 2015

    reads there is no key!
    this is all we need to know.
    and if both keys fail, I run 4 at all times
    2 orig. 1 real spare and 1,fob-less. key.

  • Anonymous Aug 06, 2015

    a key costs way less than any,
    $500 tow job, and $500 stealership labor...

  • Anonymous Aug 06, 2015

    really on modern cars that stall.
    you can pay $500 for a tow or buy a scan tool for about $100.
    (note earning $400+ first use, and more later)
    be a Boy Scout( be prepared)
    have the 2nd key at all times.
    and a scan tool .
    and WIN.

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  • Jeep Master
  • 22,486 Answers

No by pass------if key worn down or switch bad or worn it will read as no key will either need new key or tumbler in ignition switch

Posted on Jul 30, 2015

  • 4 more comments 
  • Anonymous Aug 06, 2015

    x2 no bypass after 1998 (93 to 98 yes)
    that is why I told him to scan it,
    no scans , no joy,
    if intermittent , it needs to be scanned as it fails. or you miss the boat.

    the 93 bypass is herehttp://www.fixkick.com/Jeeps/jeeps.html
    for those landing here, googling bypass.

    answer 3,
    the KEY , so you lost the spare key from day1?.opps
    that is bad news, as you need 2 keys at all times ,unless $500 tows are ok, and dealer wait util monday to fix car is ok.

    of the scan tool shows the key is bad, it is.
    end of road.
    if you follow the rules in your missing operator guide it tells you how to DIY make a key, and you need more than 1 to do that.
    on my jeep it takes 2 key to DIY the 3rd on up , max is 8 keys.

  • Anonymous Aug 07, 2015

    and if the scan tools SHOW COMM errors to SKIM
    that be something else
    no scan tool , no joy..

  • Anonymous Aug 08, 2015

    you said "reads" (do say what reads)?
    and all dash cluster lights. what dto those do.all warning lights.

  • _-__-___-_
    _-__-___-_ Aug 08, 2015

    see SKIM h3LL
    www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

    on the new jeeps, the lamp skip is not ICON'd
    nor has it words, its just a red lamp.
    plain. stealthy to foil thieves.
    here is the 99-04 cluster
    see this light>?

  • _-__-___-_
    _-__-___-_ Aug 08, 2015

    try both keys, if both fail
    then scan it.
    it's that simple.

  • Anonymous Aug 08, 2015

    free fsm covers this , under security
    http://www.jeep4x4center.com/knowledge-b...

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