Interior Dome Lamps - Will Not Operate
NO.: 08-34-92GROUP: Electrical
DATE: Dec. 14, 1992
SUBJECT:
Interior Dome Lamps Will Not Operate
MODELS:
1991 - 1992 (AS) Caravan/Grand Caravan/Caravan CV
Voyage/Grand Voyager/Town & Country
SYMPTOM/CONDITION:
Interior dome lamps will not operate when dash switch is actuated or when doors are opened. This condition may be caused by corrosion at the M2 splice.
DIAGNOSIS:
There are two courtesy lamp systems, one with a diode pack and one without a diode pack. The diode pack allows different lamps to come on when different doors open. The diode pack is on most vehicles, but is not on some lower line vehicles. The diagnosis will identify how the systems differ.
The chart shows which lamps come on with a failed (open) M2 splice. If the courtesy lamps operate (per chart), perform the repair procedure. If no lamps come on or the condition is with only one switch or lamp, this Technical Service Bulletin does not apply.
NOTE:
THE REAR OVERHEAD CONSOLE LAMPS REPLACE THE FRONT DOME LAMP ON VEHICLES EQUIPPED WITH OVERHEAD CONSOLES.
PARTS REQUIRED:
1 Tube, Shrink with Sealant 4419644
REPAIR PROCEDURE:
This bulletin involves the repair of the M2 splice located under the left side kick panel.
NOTE:
IF THE M2 SPLICE APPEARS TO BE GOOD OR AFTER THE REPAIR IS COMPLETED THE SYMPTOMS STILL OCCUR, CHECK FOR AN OPEN CIRCUIT BETWEEN THE M2 SPLICE AND THE DIODE PACK. REFER TO FIGURE 1 FOR DIODE PACK LOCATION AND FIGURE 2 FOR THE PROPER CAVITY OF THE DIODE PACK CONNECTOR FOR CHECKING CONTINUITY BACK TO THE M2 SPLICE.
1. Remove the left side sill trim plate.
2. Remove the left side kick panel.
3. Take the wiring harness out of clip "A" (refer to Figure 1).
4. Cut away the friction tape wrapping the harness to locate the M2 splice and then remove the splice covering.
5. Strip the insulation back on all of the wires in the splice until one inch of good conductive material is exposed.
6. Place the new shrink tube (pn 4419644) over one of the wires. Then twist all wires of the splice together.
7. Solder the splice. Heat the splice with a soldering iron until the solder flows through the strands of the wires. Use only rosin core solder. When cooled the joint should be smooth.
8. Slide the shrink tube over the entire non-insulated area of the spliced wires. Heat the tube with a heat gun until it is reduced to the diameter of the wires and sealant comes out of both ends of the tube.
9. Rewrap the wiring harness with friction tape.
10. Reinstall the wiring harness into clip "A".
11. Reinstall the left side kick panel and sill trim plate.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No. 08-90-64-90 0.4 Hrs.
FAILURE CODE: 21 - Connection Defect