Rear Defroster Schematic - Manual Revision

89Ford15

SHOP MANUAL-1988-SECTION 36-86- WINDOW-REAR-DEFROSTER SCHEMATIC REVISED

SHOP MANUAL-1989-SECTION 36-86- WINDOW-REAR-DEFROSTER SCHEMATIC REVISED

Article No. 89-12A-6

FORD: 1988-89 TEMPO

LINCOLN-MERCURY: 1988-89 TOPAZ


ISSUE: The rear window defroster schematic on page 36-86-2 of the 1988 and 1989 Tempo/Topaz/Escort Shop Manual is incorrect.

ACTION: Refer to the page following this TSB article for the revised rear window defroster schematic. This information should be put in your 1988 and 1989 Tempo/Topaz/Escort Shop Manual, page 36-86-2.

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 2800

1988/1989
36-86-1 Window, Rear-Defroster


SECTION 36-86 Window, Rear-Defroster

SUBJECT PAGE

DESCRIPTION AND OPERATION
Window, Rear-Defroster 36-86-4
MAJOR SERVICE OPERATIONS
Grid Wire Repair 36-86-6
Application 36-86-6
Curing 36-86-7
Mixing 36-86-6
Surface Preparation 36-86-6
Lead Window Terminal Service 36-86-7

SUBJECT PAGE

REMOVAL AND INSTALLATION
Control Assembly 36-86-7
Window 36-86-9
Special Service Tools 36-86-10
TESTING
Grid Wire Test 36-86-10
Relay Tests 36-86-9
VEHICLE APPLICATION 36-86-1

VEHICLE APPLICATION Tempo/Topaz, Escort.


DESCRIPTION AND OPERATION

The heated rear window defroster system consists of a switch mounted to the climate control and a relay control assembly mounted inside the instrument panel (Tempo/Topaz), or a switch and relay control assembly mounted on the instrument panel (Escort), and a series of grid wires baked on the inside surface of the rear window. When the control button is pushed to the ON position, 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 grid 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 control lever 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 a wire containing a fuse link connected to the starter relay.

1988/1989
36-86-2 Window, Rear-Defroster




DESCRIPTION AND OPERATION (Continued)


Tempo/Topaz

1988/1989
36-86-2A Window, Rear-Defroster




DESCRIPTION AND OPERATION (Continued)


Escort