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Unread 01-16-2014, 08:04 PM   #16
T-Mav
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1999 TJ Wrangler 
 
Join Date: Apr 2013
Location: Genoa, Nebraska
Posts: 127
Same happened to me once don't no the number but there was a gauge cluster fuse behind glove box blown that's all it was. Fine ever since, same year of jeep as yours also.

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Unread 02-11-2014, 07:08 PM   #17
BABrax
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1999 TJ Wrangler 
 
Join Date: Jul 2011
Location: Broken Arrow, OK
Posts: 55
Gonna try to revive this thread because i really need this fixed.
Really not sure what to do next, and don't want to have to resort to getting a new cluster with tons of miles on it.
Any advice would be greatly appreciated, really not sure what to do at this point.

Also if someone has their hands on a wiring schematic/diagram for the cluster wiring (Colors/grounds etc….) i really need that to try to diagnose the problem.

Also how does one properly "Test" a ground? any way to test it other than just looking to see if its screwed into the body? Thanks in advance
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Unread 02-11-2014, 08:23 PM   #18
Troutfly304
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1998 TJ Wrangler 
 
Join Date: Jan 2014
Location: DAVISVILLE, West Virginia
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I have a 98 with the same problem.. I've also tried the same things as you. I plan to follow the advice above, and take it to the dealer.
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Unread 02-11-2014, 09:06 PM   #19
BABrax
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Quote:
Originally Posted by Troutfly304 View Post
I have a 98 with the same problem.. I've also tried the same things as you. I plan to follow the advice above, and take it to the dealer.
Seems like it may be the only option at this point. Just don't want it to break the bank
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Unread 02-12-2014, 06:29 AM   #20
Jeeper5
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Location: New Jersey
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It wasn't an expensive fix at dealer, think it was like $100 bucks. I'm sorry I will look up the tsb # tonight. Easiest for this fix to take to dealer.
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Unread 02-12-2014, 06:36 AM   #21
Azzy
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Your cluster (same as XJ) houses the mileage info in the ECU, not the cluster. So you could swap it out and never be the wiser. Just make sure you dotn get a 05-06 TJ one, they are not interchangeable.

You can test your gauges by holding down the odometer reset and turning the key to run. it will chime and run through a diagnostic mode. From the sound of it, either your 2 main connectors behind the cluster are loose, you have a dead fuse, or you have a busted ground in the dash.
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Unread 02-13-2014, 06:24 PM   #22
BABrax
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Quote:
Originally Posted by Azzy View Post
Your cluster (same as XJ) houses the mileage info in the ECU, not the cluster. So you could swap it out and never be the wiser. Just make sure you dotn get a 05-06 TJ one, they are not interchangeable.

You can test your gauges by holding down the odometer reset and turning the key to run. it will chime and run through a diagnostic mode. From the sound of it, either your 2 main connectors behind the cluster are loose, you have a dead fuse, or you have a busted ground in the dash.
Thank you very much! If its the buster ground, how would i go about fixing?
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Unread 02-13-2014, 11:58 PM   #23
LRod
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I have an 06 Rubicon with a bad speedo, I ended up punching the plugs going into the computer with the palm of my hand, fixed it up so far. I also cleaned the plugs on the back of the cluster, cleaned the Silver contacts on the circuit board, and screws, replaced oil press sending unit, crank position sensor cleaned ground wires under LH speaker cover. It may be a grounding problem at the block by the OPDA, or the computer itself.
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Unread 02-14-2014, 08:10 AM   #24
BABrax
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Quote:
Originally Posted by LRod View Post
I have an 06 Rubicon with a bad speedo, I ended up punching the plugs going into the computer with the palm of my hand, fixed it up so far. I also cleaned the plugs on the back of the cluster, cleaned the Silver contacts on the circuit board, and screws, replaced oil press sending unit, crank position sensor cleaned ground wires under LH speaker cover. It may be a grounding problem at the block by the OPDA, or the computer itself.
Thank you! Just did the gauge tests and all the lights blinked and flashed but no speedo. All my contacts are cleaned up, and connectors look fine to me. I'll check my grounds later today.
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Unread 02-14-2014, 07:28 PM   #25
LRod
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I cleaned the contacts on the circuit board with elect. contact cleaner and Q tips, when I was done the Q tips were black and gray! They originaly looked clean, and screw the Silver screws in tight!! I also "Jiggled" the harness down by the Crank Position Sensor, add a temporary ground wire to the computer to see if that makes a difference.
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Unread 02-14-2014, 09:18 PM   #26
goodwrenchdave
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**** this may not be your problem. The proper diagnosis is the most important part of any repair!****
since you asked for the TSB


BULLETIN NO: 08-15-99
SUBJECT: Erratic, Intermittent Cluster Operation/Intermittent Air Bag Warning light.
DATE: May 21, 1999
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN NUMBER 08-20-98 REV. A, DATED OCTOBER 2, 1998, WHICH SHOULD BE REMOVED FROM YOUR FILES AND NOTED IN THE BOUND TECHNICAL SERVICE BULLETIN BOOK, PUBLICATION NUMBER 81-699-99003. THIS IS A COMPLETE REVISION TO THE PROCEDURE.

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

MODELS:
1998 - 1999 (TJ) Wrangler
1998 - 1999 (XJ) Cherokee

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:
Using the DRB III?, read and record all active and stored fault codes in the AECM. 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 condition will set a "NO CLUSTER CCD BUS" message. The fault code will usually be stored and not active. THIS TECHNICAL SERVICE BULLETIN WILL NOT ADDRESS FUEL OR OIL PRESSURE GAUGE ISSUES. If this fault code is present, either active or stored perform the Repair Procedure.

PARTS REQUIRED:
Qty Part No. Description
1 05016261AA Cluster Connector Patch Harness
1 04856975 Electric Contact Cleaner
2 04778570 Heat Shrink Tubing


REPAIR PROCEDURE:
THIS REPAIR IS COMPATIBLE WITH DAIMLERCHRYSLER'S MOBILE SERVICE PROGRAM AND DOES NOT REQUIRE HOISTS OR OTHER FULL SERVICE FACILITY SPECIAL EQUIPMENT.


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 (See Figure 1). 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 (See Figure 2). 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 (See Figure 1). 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.
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Unread 02-15-2014, 03:23 PM   #27
Wagtag7
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1997 TJ Wrangler 
 
Join Date: Feb 2014
Location: Devon, PA
Posts: 13
Same thing just happened to me I have a 97 Tj and Turned on my jeep the yesterday to find that my instrument cluster (speedometer, oil pressure gauge, fuel gauge ect.) is not working at all. I also found that my radio and some light aren't working. All me exterior lights are working and the dash lights (check engine, gas lights) are working. I've checked the fuses and non of those seem blown. Also non of the wires seem disconnected anywhere under the glove box. I can't figure out what it is.
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Unread 02-17-2014, 07:03 AM   #28
bigman7878
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2000 TJ Wrangler 
 
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Location: Eugene, OR
Posts: 306
Check the "iod" fuse under the hood again. That is exactly what mine did. After replacing the fuse all was good.
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Unread 02-17-2014, 07:20 AM   #29
TJ_Tim
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I believe there was a recall on the cluster not long after these came out. Not sure if the 99s were in with that recall or not. I know the 97s and 98s were.

That may be your issue. Mine slipped through somehow and after seraching and searching... even getting another cluster I took the Jeep to the dealer who solved the issue by performing the recall.


EDIT: See post above.
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Unread 02-17-2014, 08:47 AM   #30
Jeeper5
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That's it goodwrenchdave! This is what my dealer fixed for me early on. I had same issue but couldn't find the TSB#. This fixed my problem of gauges dropping off. Definitely the culprit here.
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