Automotive Forums  Where Car Enthusiasts Go to Discuss Cars Online

  
 
 
Home | Active Posts | Search | Log In / Register | Terms | FAQs
Xml
Item Posts   

1998 Wragler Instrument Cluster Guages

 
 | 
cbarner cbarner
New User | Posts: 4 | Joined: 11/06
Posted: 11/26/06
01:00 AM

On my 1998 Wrangler the gauges on the instrument cluster will not work. All of the lights work fine. Just no gauges. I believe the gauges get their signal from the PCM (power train control module. Is there any way to troubleshoot this module. I checked the voltage of 5v at some of the sensors, so it is supplying power out. I have changed out the instrument cluster and tried another PCM from another wrangler, but no luck. What should the voltage on the bus be? If anyone has any insight , I would appreciate it.  

JEEPTECH JEEPTECH
User | Posts: 54 | Joined: 11/06
Posted: 11/27/06
02:54 PM

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.

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 IIIĀ®, 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.
POLICY:
Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:
Labor Op. No. Time
08-90-90-91 0.6 Hrs.


FAILURE CODE:
Code Description
P8 New Part  

cbarner cbarner
New User | Posts: 4 | Joined: 11/06
Posted: 11/28/06
10:35 AM

At first the gauges were intermittent. Now none of them work. Do all of the gauges come off of the CCD Bus? The Air Bag warning light did come on at times. As far as I can tell the only things on this bus are the gauges and the Air Bag control. Is there anything else that you know of? I will try cleaning the terminals to see if that helps.

Thanks  

JEEPTECH JEEPTECH
User | Posts: 54 | Joined: 11/06
Posted: 11/28/06
02:13 PM

this is a common problem with the wrangler,that is why the factory issued this TSB, replace the one connector and clean the other and this should fix your problem  

cbarner cbarner
New User | Posts: 4 | Joined: 11/06
Posted: 11/30/06
09:56 AM

I replaced the one connector and cleaned both terminals on the cluster. Still no gauges. I took the cluster and put it in a 97 Wrangler and it worked fine, so I know it is not the cluster. I also put the PCM in the 97 Wrangler and it worked fine. I took the PCM and the cluster from the 97 Wrangler and one at a time put them into the 98 and neither worked. The odometer does not work either in the 98. I thought maybe a failed sensor might be preventing the PCM from booting properly so I unplugged every sensor I could find but still no luck. Do you have any other suggestions? Please help!!!!!!!!!!!!!!!!!!!!!!  

JEEPTECH JEEPTECH
User | Posts: 54 | Joined: 11/06
Posted: 11/30/06
03:20 PM

here is the pinout on the cluster so you can check your wiring



INSTRUMENT CLUSTER - C1 CAV CIRCUIT FUNCTION
1 D2 20WT/BK CCD BUS (-)
2 D1 20VT/BR CCD BUS (+)
3 C81 20LB/WT* REAR WINDOW DEFOGGER RELAY CONTROL
4 C80 20DB/LG* REAR WINDOW *** SWITCH SENSE
5 G107 20BK/RD 4WD SENSE
6 L60 18TN RIGHT TURN SIGNAL
7 G106 20BK/WT FULL TIME 4WD INDICATOR
8 G26 20LB KEY-IN SWITCH SENSE
9 Z2 18BK/LG GROUND
10 G10 20LG/RD SEAT BELT SWITCH SENSE

INSTRUMENT CLUSTER - C2 CAV CIRCUIT FUNCTION
1 L7 18BK/YL TAIL, LICENSE, SIDE MARKER LAMPS
2 G99 20GY/WT RED BRAKE WARNING LAMP DRIVER
3 E2 20OR FUSED PANEL LAMP DIMMER SWITCH SIGNAL
4 G19 20LG/OR ABS WARNING LAMP DRIVER
5 G34 16RD/GY HIGH BEAM INDICATOR DRIVER
6 Z2 18BK/LG GROUND
7 - -
8 G5 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN/START)
9 M1 20PK/WT FUSED B (+)
10 L61 18GY LEFT TURN SIGNAL  

cbarner cbarner
New User | Posts: 4 | Joined: 11/06
Posted: 12/05/06
09:07 AM

I checked the pinout and the wiring is correct. I checked the grounds to ensure I had a good groung and it is fine also. I think I might have to take it to a mechanic unless someone has any more ideas. I have checked everything I could think of.

Thanks  

JEEPTECH JEEPTECH
User | Posts: 54 | Joined: 11/06
Posted: 12/05/06
03:26 PM

sounds like a wiring issue,check the bulk head connector at the firewall,check for a shorted or grounded wire, loose connection at the connector...  

Xml
Showbuyersguide Hide2
2014 Jeep Wrangler
Button Getmyprice
Body Style:
SUV
Rating:
Excellent Excellent

Research Categories:

Sponsored Links

 
 
  • Trade-in-Value.com