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Thread: 1997 Jeep Wrangler All Guages Dead

  1. #11
    SUPPORTER 97TJGUZZY's Avatar
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    Here are some additional links and info I have found...

    https://www.jeepforum.com/forum/f9/9.../#post11337607

    https://www.jeepforum.com/forum/f9/0...k-etc-4328547/

    https://www.jeepforum.com/forum/f9/s...issue-4292833/

    https://www.jeepforum.com/forum/f9/9...solved-595954/

    https://www.wranglerforum.com/f210/1...p-2040874.html

    https://www.jeepforum.com/forum/f9/i...-luck-4311003/

    https://www.jeepforum.com/forum/f9/t...blems-4327015/

    https://www.wranglerforum.com/f210/1...ent-33995.html

    https://www.pirate4x4.com/forum/jeep...r-problem.html

    https://www.pirate4x4.com/forum/jeep...t-working.html

    https://www.pirate4x4.com/forum/jeep...al-issues.html

    https://www.jeepforum.com/forum/f9/9...rking-2647218/

    This happened in my 99 TJ, caused by a poor connection in the back of the cluster. I took out the cluster, slipped down both connectors from the metal part they are attached to and left them in front of it. Then replaced the cluster trying to catch both connectors. They make a little pressure against the cluster improving connection. No problem since then, all gauges working OK!!


    Pasted from <https://www.wranglerforum.com/f282/guages-quit-working-148287.html>



    Few things I have found that I plan to try or check:

    Twisted wire to gauge cluster
    Short between motor and firewall at back of the motor
    Plug in the plugs directly into the cluster without putting them in the holder.

    Hey dude this just happened to me a month ago check the wire that runs up to the speakers on your rollbars i pinched mine on accident. And i got in my jeep and started driving and nothing worked(Radio, guages, Dome light) just check that cluster of wires that runs up to the rollbar speakers.

    Pasted from <https://www.pirate4x4.com/forum/jeep-non-hardcore/894696-98-tj-gauges-radio-interior-light-not-working.html>




    When the indicator lamps work but the gauges don't, the most likely cause is a bad fused battery supply to the cluster -- C2 (blue connector) pin 9 (PK/WT) should have a constant 12.6v/battery voltage present.

    Pasted from <https://www.jeepforum.com/forum/f9/tj-cluster-problems-4327015/>


    Power for the instrument cluster fused B+ input comes from PDC fuse 25 (10a), passes through connector C108 pin 12, then connector C203 pin B7, then on into the cluster connector C2. If PDC fuse 25 is bad, you'll also notice the under hood light and your dome light will be inoperative.

    Pasted from <https://www.jeepforum.com/forum/f9/tj-cluster-problems-4327015/>


    Instrument cluster problems solved!!!
    Without going into all the details of what I did prior to my fix, let me preface my comments by saying I did everything listed on every thread, TSB and video suggestions across the net. Still no luck, intermittent gauges, dashlights drop out, funky intermittent operation. Worked when cold, worked when hot, hitting bumps, whacking dash and etc. Almost made me get rid of my Jeep altogether.

    Obviously frustrated beyond comprehension I tried a new attack on this issue. I pulled my cluster out for the millionth time, pulled the board (remove 28 screws) and approached the problem from an electronics perspective. I took my soldering iron at 701 degrees and re-flowed each pin with a tiny amount of silver solder where it is soldered to the board from the back side. All pins on each male socket on the back side of the circuit board. Then, I carefully “tinned” each male pin where it mates with the female plugs behind the cluster. This insured a good reflow of solder on both sides of the board. Problem solved. Now, I will say you need some expirence with a good high quality soldering iron or you could permanently ruin your board. I did not care at this point, dash didn’t work anyway. The problem is age, vibration, temperature extremes and cheap China Mopar parts.

    Couldn’t believe this was the fix. If you can solder wires you can do this.

    Pasted from <https://www.jeepforum.com/forum/f9/instrument-cluster-issues-tried-few-things-no-luck-4311003/>

    NO: 08-15-99
    SUBJECT: Erratic, Intermittent Cluster Operation/Intermittent Air Bag Warning light.
    DATE: May 21, 1999

    OVERVIEW:
    This bulletin involves installing a repair harness containing a revised instrument cluster connector.

    SYMPTOM/CONDITION:
    Some vehicles may exhibit an intermittent illumination of the air bag warning light or an intermittent tachometer or speedometer drop out. An Airbag Electronic Control Module (AECM) fault code -"No Cluster CCD BUS " message will be present.

    DIAGNOSIS:
    This condition is caused by minor oxidation of the BUS circuit terminals at the instrument cluster connector. Electrical terminals will show signs of oxidation, which will appear as darkened lines or marks on the cluster male terminals. These often appear as gray or black marks rather than the appearance of oxidation or corrosion usually associated with higher current carrying circuits. THIS TECHNICAL SERVICE BULLETIN WILL NOT ADDRESS FUEL OR OIL PRESSURE GAUGE ISSUES.

    PARTS REQUIRED:
    Part No. Description
    105016261AA Cluster Connector Patch Harness
    104856975 Electric Contact Cleaner
    204778570 Heat Shrink Tubing


    REPAIR PROCEDURE:
    Disconnect the negative battery cable.
    Remove the instrument cluster using the procedures outlined in the appropriate servicemanual.
    Inspect the male terminals of pins 1 & 2 on the instrument cluster connector labeled CNB. The oxidation will appear as gray or black lines or marks on the terminals. If any signs of oxidation are present, remove them by gently scraping the terminals with a small flat bladed screw driver until the oxidation is gone. Use of a magnifying glass may be helpful. Use caution when performing this operation. Do not apply excessive force to the terminals to avoid bending them or damaging the cluster or terminals. Do not use a sharp tool, knife or sand paper, which could remove the protective plating from the terminals. Do not use any cleaner other than p/n 04856975. Other chemical cleaners could damage the instrument cluster.
    Clean the male terminals with Electrical Contact cleaner, p/n 04856975. Apply the cleaner sparingly holding the cluster with the connector facing down to avoid excessive amount of cleaner from entering the cluster.
    Remove the green cluster connector from the bracket.
    Using wire cutters, remove the instrument cluster harness connector from the harness. Remove only the connector containing the BUS circuit This connector is labeled CBA on the cluster. Cut the wires as close to the insulator as possible.
    The new connector must be soldered onto the harness. This operation requires a technician who is skilled at soldering to avoid a cold solder joint. Position the harness and align the wires with the patch harness, matching the color codes match the main wire colors. NOTE: THE XJ INSTRUMENT PANEL CONTAINS ONE MORE CIRCUIT IN THIS CONNECTOR THAN THE TJ. CUT THE UNUSED WIRE CLOSE TO THE CONNECTOR ON TJ MODELS.
    Stagger cut the main harness and patch harness wires so that the solder joints will be 1/2 inch apart. Remove 1/2 inch of insulation from the wires. The new harness will have a dark blue with no tracer. This will mate with a dark blue wire with a green tracer on TJ and with a dark blue wire with a white tracer on XJ.
    Slide a piece of heat shrink tubing over the wires and twist the wires together for each respective circuit.
    Solder each circuit using rosin core solder. Be sure to heat the wire enough to allow the solder to melt when it comes in contact with wire. Do not use acid core solder.
    Position the heat shrink tubing over the solder joints and shrink the tubing using a heat gun.
    Install the connector to the bracket.
    Install the instrument cluster.
    Connect the battery cable.
    Verify correct operation of the cluster.
    POLICY:
    Reimbursable within the provisions of the warranty.

    TIME ALLOWANCE:
    Labor Op. No.Time08-90-90-910.6 Hrs.

    FAILURE CODE:
    CodeDescriptionP8New Part

    Pasted from <https://www.pirate4x4.com/forum/jeep-non-hardcore/623878-97-tj-electrical-issues.html>


    did you check the fuses in the engine compartment too?

    theres a mini fuse up there that, if blown, allows the lights to work but not the guages. let me know if thats the prob.

    It's called the IOD, or Igniton Off Draw fuse. Basically, it's the stuff that draws juice and would be used in delivery of the vehicle. DC shipps them with the IOD fuse not installed, so that the battery won't go dead in transit. Then when the dealer preps them, they install the fuse and everything works. I remember when I used to work at the dealership and couldn't believe we got Jeeps that the gauges were dead on till one of the techs laughed, then explained it to me.

    Pasted from <https://www.pirate4x4.com/forum/jeep-non-hardcore/623878-97-tj-electrical-issues.html>
    --Brooks

  2. #12
    SUPPORTER 97TJGUZZY's Avatar
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    I haven't gotten a No Buss code. Last night I removed the plugs from the dash and plugged them directly into the cluster manually, and I get all lights, but no needles move. except for the twitching...
    --Brooks

  3. #13
    SUPPORTER 97TJGUZZY's Avatar
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    with the help of tripp on the phone I found last night that the signal voltage purple/brown and white/black from the computer is inconsistent and incorrect at both the Plug for the gauge cluster plug and the obd2 port. It looks like the computer is not sending the correct signal. Im hoping to borrow a computer from miller that I plan to try tonight.
    --Brooks

  4. #14

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    Wink

    Maybe the new computer will make the Knocking sound go away

  5. #15
    SUPPORTER LBarr2002's Avatar
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    Quote Originally Posted by DanStew View Post
    Maybe the new computer will make the Knocking sound go away
    From our FB message conversation:

    Dont need no stinking gauges. Too cold to overheat, already knocks so oil pressure is optional, just make sure it has fuel ;)
    '04 LJ Sleeper

  6. #16
    SUPPORTER 97TJGUZZY's Avatar
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    Quote Originally Posted by LBarr2002 View Post
    From our FB message conversation:

    Dont need no stinking gauges. Too cold to overheat, already knocks so oil pressure is optional, just make sure it has fuel ;)
    agreed, see yall tonight!
    --Brooks

  7. #17
    SUPPORTER 97TJGUZZY's Avatar
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    So i picked up a bluetooth code reader that has a Live Data option just to see what it would do and eliminate the cluster from my troubles. This should tell me if the computer was sending the correct signals or not. Well, I installed it friday before the uwharrie trip and it is reading live data for temperature, speed, and RPM, so the computer is not the problem... Now back to the drawing board. Looks like i have a bad cluster?
    --Brooks

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