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kennyb28
kennyb28, Service Manager
Category: Jeep
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Experience:  Service Manager with many years of hands on experience
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99 jeep cherokee sport: the gauges (speedometer, rpm..head lights

Resolved Question:

On the 99 jeep cherokee sport, was there ever problems with the gauges (speedometer, rpm's, oil, gas, etc) all going out at once. Also, sometimes my head lights stay on after I push in the switch ad shut the car off.
Submitted: 5 years ago.
Category: Jeep
Expert:  kennyb28 replied 5 years ago.

Yes, there is a technical service bulletin for your gauge cluster issue.

NUMBER: 08-15-99

GROUP: Electrical

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.

SUBJECT:
Erratic, Intermittent Cluster Operation/Intermittent Air Bag Warning light.

 

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(R), 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:

1 05016261AA Cluster Connector Patch Harness 1 04856975 Electric Contact Cleaner 2 04778570 Heat Shrink Tubing

 

POLICY: Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:

Labor Operation No: 08-90-90-91 0.6 Hrs. FAILURE CODE: P8 - New Part

 

repair procedure:

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

1.Disconnect the negative battery cable.

 

2.Remove the instrument cluster using the procedures outlined in the appropriate service manual.

 


 

3.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.

 

4.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.

 

5.Remove the green cluster connector from the bracket.

 

6.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.

 

7.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.

 

8.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.

 

9.Slide a piece of heat shrink tubing over the wires and twist the wires together for each respective circuit.

 

10.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.

 

11.Position the heat shrink tubing over the solder joints and shrink the tubing using a heat gun.

 

12.Install the connector to the bracket;

 

13.Install the instrument cluster.

 

14.Connect the battery cable.

 

15.Verify correct operation of the cluster.

 

 

Your headlight issue sounds like a separate issue. possible bad switch. please hit the green accept button.

 

kennyb28, Service Manager
Category: Jeep
Satisfied Customers: 355
Experience: Service Manager with many years of hands on experience
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