Sable V6-232 3.8L (1988)
VEHICLE APPLICATION Continental.
DESCRIPTION AND OPERATION
The heated rear window defroster system consists of a switch assembly and a relay control assembly mounted to the instrument panel, and a series of grid
wires baked on the inside surface of the rear window, When the control switch is activated by the push button, current is directed to the grid wires on the
rear window. The heated grid wires keep the rear window clear of fog or ice.
The integral timer automatically turns off the heating after approximately 10 minutes of operation. If more than 10 minutes of use is needed, the grid can
be reactivated for another 10 minutes by pushing the push button to the ON position. This operation can be repeated as required. Power for the control
timer and relay coil comes from the RUN terminal of the ignition switch and from the high-current fuse panel.
1988 Continental
36-86-2
Window, Rear-Defroster
36-86-2
DESCRIPTION AND OPERATION (Continued)
The rear window defrost grid is fed through the relay contacts from the high current fuse panel. The input to the rear defrost control assembly from the
ignition switch determines if the relay contacts will stay closed when activated by the ON-OFF push button. When the ignition switch is in RUN position,
moving the button to ON closes the relay contacts and also activates the timing circuit. The relay contacts will remain closed until they are opened by the
timing circuit, the button is depressed to the OFF position, or the ignition switch is turned to the OFF position.
The circuit is protected by a fuse located in the highcurrent fuse panel.
The operating button is spring-loaded to return from ON or OFF to its center (normal) position.
As soon as the switch is depressed to the ON position, it electrically connects power to energize the timer relay coil, thereby causing the normally open
relay load contacts to close and provide power to the ON lamp and the rear window grid wires. The grid wires will continue to receive power for
approximately 10 minutes.
The control can be deactivated before automatic time out by momentarily depressing it to the OFF position, or by turning the ignition switch to the OFF
position.
For individual wiring harness applications, refer to Section 34-24.
MAJOR SERVICE OPERATIONS
Grid Wire Repair
NOTE:
A single break or any breaks that total more than 25 mm (1 inch) in one grid cannot be repaired. The rear window must be replaced. For breaks
less than 25 mm (1 inch) long, use the following procedure:
Surface Preparations
1.
The vehicle should be brought inside and permitted to come to room temperature of 16~C (60~F) or above.
2.
Clean entire grid line repair area with Ford Glass Cleaner E4AZ-19C507-A (ESR-M 1495- A) or equivalent, to remove all dirt, wax, grease, oil or
other foreign matter. It is important that repair area be clean and dry.
