wiring diagram, 87 GT Headlight Switch
Arby500
it). He wants me to put a new one in for him. Does anyone have a wiring diagram
of this switch that can be emailed to me? Thanks in advance. Email the diagram
to: arb...@aol.com
Musttanguy
>My son's Mustang's headlight switch melted (probably loose connection caused
>it). He wants me to put a new one in for him. Does anyone have a wiring
>diagram
The reason the headlight switch melted is
the guage wire that was used at the factory
This is a very common occurance in the GT's due to the draw from the fog
lights.You need to replace switch and connector first and then take the load
off this switch by adding a relay for the fog lights and transfering the draw
to the battery instead.Why there was never a recall on these I will never
understand.
MUSTTANGUY@AOL
95 Mustang conv.v6,chrome17"s, dual exh,fogs
91 Mustang conv,95 run'n gear,GT40,orig.cobra body kit,modified
87 Mustang GT,for sale
82 Mustang GT,future BB
86 Ranger 4x4,9"lift,33's,91 5.0 going in
92 Bronco 4x4,7"lift,35's,winch,351
Rodney E Geraghty
-------------------------------------------------------------
Article No. 89-17-11
Lamps-Headlamps-Flash when fog lamps are on for extended period
Wiring-Headlamp circuit-inadequate gauge wire and terminals
FORD:
1983-89 Escort
1983-87 EXP
1987-89 Mustang GT
LINCOLN/MERCURY
1983-87 Lynx
Issue:
The headlamps may flicker on and off when the fog lamps are used for an
extended period. This may be caused by overheating of the headlamp
circuit #15.
Action:
Install new wiring, terminals, headlamp, and dimmer switches. Refer to
the following procedure for service details. Refer to the following
application charts for the correct parts usage.
1. Remove the headlamp switch. Refer to the appropriate car shop
manual, Section 32-02 for service details.
2. Inspect the switch and connector terminals of circuit #15 for any
heat damage such as discolored terminals or distorted connectors.
3. Perform normal diagnostic procedure if no heat damage is found.
4. Proceed as follows if heat damage is found:
A. Remove the terminals and wire (circuit #15, red/yellow)
from both the headlamp and the dimmer switch connectors.
B. Cut the wire as near as possible to the wire harness tape
wrap and throw away.
C. Crimp new terminals to the correct length of 12 gauge wire
and install them in the connectors.
D. Overlay the new wire along the existing wire harness and
tape wrap it.
E. Install new headlamp and dimmer multifunction switches.
Refer to the appropriate car shop manual, section 32-42
for Mustang and section 32-40 for Escort/Lynx/EXP for
dimmer switch removal and installation details.
5. Check the system for proper operation.
Mustang parts list:
1987-1989 Mustang GT
E7ZZ-11654-B Headlamp switch - 1
E8ZZ-13K359-A Dimmer switch - 1
E69Z-14489-B Connector-HSW - 1
E6DZ-14489-P Connector-DSW - 1
D8TZ-14474-A Terminal - 2
Obtain locally 12 gauge wire
--
Rodney E Geraghty
GERA-Tech
Ottawa, Canada
ger...@ibm.net
Arby500 <arb...@aol.com> wrote in article
<19990820221233...@ng-da1.aol.com>...
> My son's Mustang's headlight switch melted (probably loose connection
caused
> it). He wants me to put a new one in for him. Does anyone have a wiring
diagram
Musttanguy
>Ford TSB for headlight problems
>Action:
>Install new wiring, terminals, headlamp >switch
The TSB proceedure is fine for repairing the damage that has occured.But the
only real remedy to prevent future failures is to remove the fog light load off
of the headlight
switch and put it where it belongs, on a relay drawing its power load off the
battery.
The only additional draw other than the headlights should be the relays coil on
this switch.
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