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    bstwilliams's Avatar
    bstwilliams Posts: 14, Reputation: 1
    New Member
    		  
    #1

    Jan 7, 2011, 09:03 PM
    OBD-1 jumper
    How can I make a jumper to get the obd-1 codes from my jeep grand cherokee laredo 5.2?
    I found the obd plug after looking for about an hour but I don't have a code reader and I have heard that I can make a jumper and watch the check engine light flash and count it to get the codes.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Jan 8, 2011, 08:35 AM

    Try a paper clip, as explained in the link below:

    https://www.askmehelpdesk.com/cars-t...tml#post832012
    bstwilliams's Avatar
    bstwilliams Posts: 14, Reputation: 1
    New Member
    		  
    #3

    Jan 8, 2011, 08:36 PM
    Comment on TxGreaseMonkey's post
    Ok, but which terminals?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #4

    Jan 8, 2011, 08:39 PM

    Check with a Haynes Manual.
    bstwilliams's Avatar
    bstwilliams Posts: 14, Reputation: 1
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    #5

    Jan 9, 2011, 09:28 AM
    Comment on TxGreaseMonkey's post
    Thanks
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #6

    Jan 10, 2011, 12:58 PM

    Terminal's A and B.
    Here's the OBD-I connector view:

    Name: DLC.JPG Views: 940 Size: 10.0 KB

    Insert jumper and cycle key to the RUN position. Count the Check Engine Light pulses and write down the sequence.
    If you let us know what diagnostic trouble code (DTC) is stored, as well as what your symptoms are, we will be able to assist in diagnosis and make recommendations.
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