Attachment III - Technical Information
HEATER BLOWER SWITCH AND CONNECTOR REPLACEMENTOVERVIEW
When performing this service procedure, you will:
^ replace the existing blower switch wire harness connector with a redesigned connector
^ replace the existing blower switch
^ verify the repair
SERVICE PROCEDURE
CAUTION:
Do not use excessive force when installing the Radio Removing Tool. This may damage the retaining clips, making radio chassis removal difficult.
1. Remove the radio.
^ Record the radio stations.
^ Install the Radio Removing Tool T87 P-19061-A into the radio face plate.
^ Push the tool in approximately 25.4 mm (1 inch) to release the retaining clips.
^ Apply a slight spreading force on the tool and pull the radio out.
^ Disconnect the radio connectors.
2. Remove the A/C control finish panel. See Figure 1.
^ Contour: Gently pull the finish panel away from the instrument panel to disengage the retaining clips and disconnect the dimmer switch electrical connector.
^ Mystique: Open the ash receptacle and remove the two (2) retaining screws and disconnect the dimmer switch electrical connector.
3. Remove the A/C control retaining screws and remove the A/C control.
CAUTION:
Cut and splice only one wire at a time. The wire colors on the new blower switch connector do not match the existing wiring harness colors.
4. Install the new blower switch connector kit.
A. Obtain Blower Switch Connector Repair kit # F5RZ-14A411-AA.
B. Select the first wire to be spliced from the switch wire harness and cut it as close as possible to the blower switch connector. See Figure 2.
C. Select the corresponding wire from the new blower switch connector.
D. Strip 1/4 inch insulation from the selected wires.
E. Install the appropriate splice connector using crimp tool # AD1522 or equivalent ratchet action crimp tool.
F. Test the integrity of all splices after crimping. Grasp the wires at each splice and pull gently. If any wire is not attached securely, replace the splice connector and crimp firmly.
G. Repeat steps B through F for the remaining wires, one at a time.
H. Heat each splice connector thoroughly until the tubing shrinks and adhesive flows from each end. Use Rotunda Heat Gun R07-10300 or equivalent. See Figure 3.
5. Remove the old blower switch.
^ Pull the switch knob off.
^ Remove the switch retaining screw.
6. Install the new blower switch.
^ Install the new switch and the retaining screw.
^ Install the switch knob.
7. Connect the new blower switch connector to the new blower switch.
8. Check operation of the blower motor.
9. Install the A/C control and retaining screws.
10. Install the A/C control finish panel.
^ Contour: Push the finish panel retaining clip into place in the instrument panel.
^ Mystique: Position the finish panel on the instrument panel and install the two (2) retaining screws through the ash receptacle.
11. Connect the radio connectors and install the radio.
12. Program the radio stations.