1987-89 Ford Mustang Classic Update Series 510547
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1987-89 Ford Mustang
Classic Update Series
www.americanautowire.com 856-933-0801
510547 © COPYRIGHT 2004 American Autowire / Factory-Fit
Used with express permission of
American Autowire / Factory-Fit
DESIGN ASSISTANCE PROVIDED BY:
Page 1 92970659 Rev 0.0 9/22/2014
START HERE !
The terminals that we supply in our kits, utilize what is known as an F crimp. The F crimp,
in a cross section, will look like the illustration below, when done correctly.
wire core
PLEASE READ THIS BEFORE STARTING INSTALLATION !
This wiring kit is designed for ease of installation. Please read the guidelines below,
BEFORE STARTING your installation, to guarantee a successful job. Use an appropri- end view of proper crimp
ate crimping tool, which folds the wings of the open barrell terminals down into the un-crimped terminal of terminal
wire, as shown on this page. ALL TERMINALS THAT YOU INSTALL SHOULD BE
PROPERLY SOLDERED. Our factory crimped terminations are installed by GM We carry the following crimping hand tools, to help with your terminal crimping.
approved five ton presses, and soldering these terminations is not necessary. These hand tools are available, for purchase or rental.
AAW p/n 500649 AAW p/n 500523
OEM small terminal crimping OEM large terminal crimping
tool (18-14 gauge) tool (12-8 gauge)
AAW offers a great terminal crimping video entitled “Proper Crimping Video”. It can
be viewed by visiting YouTube.
Type the following address into your web browser, to go directly to the video:
www.youtube.com/watch?v=8u_EkMsioMy
Youtube Channel: We carry many accessories for your 1987-89 Ford Mustang.
www.youtube.com/user/WiringHarness
p/n 500479 p/n 500802
GM “SI” series to Ford “3G” internal
Universal Relay Kit
regulated alternator
STEP 1: DISCONNECT YOUR BATTERY:
Disconnect the battery, before installing the wiring kit, to prevent any accidental shorting
caused by loose bare wire ends.
1987-89 Ford Mustang
If you have any questions concerning this or any of our products, Classic Update Series
Page 2 www.americanautowire.com 856-933-0801
please feel free to call us at 1-856-933-0801. 510547 92970659 Rev 0.0 9/22/2014
STEP 2: START INSTALLING KIT: Connector terminal removal instructions:
This kit is broken down into individual sections, that are identified by a letter printed on the enclosed
sheets, visible through each bag. The order of installation and the pages with their installation You will need to remove the terminals, from
instructions, are shown below: the connectors that are to be salvaged from
your original harnesses. Looking into the
openings in the mating end of the connector,
Table of Contents: you will need to push the small latches
inside, towards the outside of the connector
Bags: Pages: Sections: body, while gently pulling the wire and Latch
terminal, from the other end.
G 4 - 14 Dash Harness - This is the main harness in the kit and contains: Be careful not to break the latches.
- Starter solenoid connections. - Door jamb switches.
- Wiper motor connections - Wiper module and switch connections
- Brake light switch connection. - Defrost module and switch connections.
Push in latches here, to
- Neutral safety switch connection. - Headlight and fog light connections.
SC remove retaining strip.
H 15, 16 Gauge Cluster Harness - This Harness contains: The white Defrost Module connector
- Gauge connections for aftermarket gauges. to the right, needs to have the black
retaining strip removed, prior to
pushing the latches, to release
M 17, 18 Rear Body Harness - This Harness contains:
the terminals. This retaining strip
- Tail light, turn signal, reverse light, and running light connections.
will be replaced, after the new
- Hatch connections; third brake light, license plate lights, and rear defroster
terminals are installed. If the strip
connections.
should break, during removal, the
- Fuel pump connections.
connector will still work without it.
L 19 - 22 Front Light Harness - This Harness contains:
- Headlight, turn signal, running light connections.
- Fog lamp wiring. The two Wiper Motor connectors, have a retaining clip on the wire side, that must be
- Windshield washer connection. removed, prior to pushing the latches to release the terminals. These retaining clips
- Electric fan relay trigger. will be replaced, after the new terminals are installed. If the clips should break,
- Brake fluid level wiring. during removal, the connectors will still work without them.
J 23 - 25 Engine Harness - This Harness contains: retaining retaining
- Temperature, oil pressure, tachometer wiring. clip clip
- Ignition system / ECU power.
- A/C compressor connections.
- Alternator connections. SJ SL
1987-89 Ford Mustang
Classic Update Series
The terminals are not shown in these views, for clarity.
Page 3 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014
Dash/Main Harness installation instructions:
Shown below, are the connectors and grommets you will need to salvage/remove from your original Dash harness, that will be re-used (along
with the supplied parts, on the following page) to complete your Dash/Main harness connections. They are itemized and referred to on this
page, just as they are on the following pages of this Dash/Main instruction set (also see page 17, for parts salvaged from your original Rear
Body harness). Terminal removal instructions, are on page 3. The original “donor” harnesses, for these salvaged parts, are in years 1987-93.
Salvaged AC Mode selector
switch connector Salvaged Defrost Module (Black) Salvaged Defrost Module (White) Salvaged Defrost switch Salvaged Fog Lamp switch
SD SE
SA SB SC
Salvaged Wiper Module
Salvaged Illumination 5.00 (cut existing wires,
Lamp connector Salvaged Interior Dimmer to length shown) Salvaged Wiper Motor (Black)
SF
SG SJ
SH
Salvaged
ECU
Salvaged Main
firewall
Salvaged Blower Motor Salvaged Wiper Motor (Gray) firewall
grommet
grommet
(if required)
SK
SL SM SN
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1987-89 Ford Mustang
Classic Update Series
Page 4 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions:
Shown below, are the supplied misc. terminals, plastic connector bodies, hardware, and bracket, that will be used (along with the salvaged
parts that were removed from your original Dash harness, from the previous page) to complete your Dash/Main harness connections. They
are itemized and referred to on this page, just as they are on the following pages of this Dash/Main instruction set.
(single male
(Pack-con 2-way L PLEASE READ THIS HELPFUL INSTALLATION TIP,
B A
A male conn, 1 pc.)
terminal,3 pcs.)
BEFORE GOING ANY FURTHER!
(male flat Pack-con M (sleeve, 6 pcs.)
B terminal, 11 pcs.) Prior to installing the Dash/Main harness in your dashboard,
plug all of the fuses and circuit breakers (see detailed picture
below), Horn Relay, Hazard Flasher and Turn Flasher (see
(Pack-con 9-way male
C conn, 1 pc.)
detailed picture below), into this harness.
30 1 2 30
(56 series single female Trim leads of both Bussmann
D terminal, 7 pcs.) N 15 3 4 30
circuit breakers,
5
where shown, prior 6 20
E (10-32 nut, 1 pc.) to installing in fuse 20 7 8 30
box. 15 9 10 10
F (10-32 screw, 5 pcs.) 15 11 12 15
13 14
G
20 20
(large box terminal, 5 pcs.)
15 16 30
H (small box terminal, 3 pcs.) (Fuse box mounting
bracket, 1 pc.) Horn Relay
Hazard Fuse, Circuit Breaker
(56 series 2-way Turn Flash Flash
installation orientation.
J female conn, 2 pcs.) (56 series 3-way
P male conn, 2 pcs.)
(single female
K terminal, 3 pcs.) (56 series 3-way
R female conn, 1 pc.)
1987-89 Ford Mustang
(56 series single
T male terminal, 3 pc.) Classic Update Series
Page 5 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions:
Instrument
Rheostat
It is recommended that the connector terminations
and harness installations, on the following pages,
are performed in the order they are presented. either brown wire can
be plugged into either
of the center cavities
The connectors on this page, should have their SG
wires installed, on a bench or work area, prior
to installing the harness, in the dashboard.
Rear Defrost
Wiper Motor 1
Wiper Motor 2 SF SA
SD
Blower
SJ SL Fog Lamp
Motor A/C Panel
A/C Mode
Switch
Switch Illuminate
SE SK
either terminal can
be plugged into
either cavity
1987-89 Ford Mustang
www.americanautowire.com 856-933-0801 Classic Update Series
Page 6 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions:
The terminals and connectors on this page,
should be installed on a bench or work area,
‘87-’89 G
Salvaged Defrost
Module (Black)
prior to installing the harness in the dashboard.
SB
WARNING:
Rear Defroster Module Extension
G
Do not remove the Power Windows/
Locks/Mirrors harness, that runs along
the top of the firewall, behind the dash
‘90-’93
Salvaged Defrost
board, if you plan on using Power H Module (White)
Windows/Locks/Mirrors.
SC
Rear Defroster Module Extension G
C B Salvaged Wiper Module
yellow/red
black/pink brown/white black/pink
white
white (2) black/white
SH
red
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yellow/red black
orange
green orange
brown/white
red black (2) black/white
1987-89 Ford Mustang
green
Classic Update Series
B
Page 7 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions: Rear of Dashboard Horn Relay
Engine Turn
Flasher
Wiper
Module
Underdash
Courtesy
D C B A
Rear
Defrost
Module
Hazard
Flasher
Windows Door Locks A B
Fuse Box
and and
(90-93 mount)
Mirrors Releases
SK Ground NSS
Ground
Brake
Switch
Dome & Map Blower
F
E
D
Light Motor
C
B
Underdash
A
Courtesy Blower Front
Resistor Remove the dashboard from the car and Light
lay your new dashboard harness on the Rear
back of the dashboard, as shown. Body
Prior to installing the Dash Harness in the Wiper Door
back of the dashboard, see the next Motor 1 Jamb
Door
Jamb page, for those connectors and wires, to SL
www.americanautowire.com 856-933-0801
be routed out the front of the dashboard. Wiper
Motor 2
1987-89 Ford Mustang Connect the Ground ring terminals, to SJ
Classic Update Series a good chassis ground. Engine
Page 8 510547 Main Power Feed 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions: Front of Dashboard (instrument panel removed)
Instrument Instrument
Cluster 2 Cluster 1
A
B
C
D
Instrument
Rheostat
SG Horn
Switch
A
B
High
Beam
Turn
Headlight Signal
switch SF
Switch
A/C Panel
K J H Illuminate
Fog Lamp Cigar
Switch SE Wiper
Lighter A/C Mode
Switch
Ignition Switch
SD VSS SA
Hazard Rear
Defrost Blower
Radio
Switch
While installing the Dash Harness in the back
of the dashboard, route these connectors and
wires out the front of the dashboard, as shown. 1987-89 Ford Mustang
Classic Update Series
Page 9 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions:
1987-89 Fuse Box installation: 1990-93 Fuse Box installation:
Trim back dashboard, just enough
to avoid screw heads.
Trim back dashboard,
F F F just enough to avoid
Fuse Box. Leave
enough material, under
the screw head.
20
15
30
10
30
20
30
30
dashboard
Bussmann
15 16
13 14
11 12
10
8
6
4
2
9
7
5
3
1
15
20
15
20
15
30
Mount Fuse Box and mounting bracket “N”,
to metal rail in back of dashboard, where
original Fuse Box was mounted, using
F F original mounting hardware
dashboard
(remainder of Dash Harness, is not
shown in this view).
N
Front of dashboard, with Fuse Box access panel removed.
End view section of dashboard,
dashboard viewed from driver’s side.
N
N
E
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Mount Fuse Box and mounting bracket “N”,
to back of dashboard, with bent end of
bracket, angled away from dashboard 1987-89 Ford Mustang
(remainder of Dash Harness, is not
shown in this view). Classic Update Series
Looking up, at bottom edge of dashboard,
Page 10 with Fuse Box access panel removed. 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions: Plug these connectors into their mating connectors,
Original wires found on the blower plenum, under the dash.
Plug these connectors into their mating connectors, from Horn
found at the steering column. See the note at the B
Wiper Switch connector, for ‘90-’93 models.
Cut the original terminals, from the original Horn B
A
B
wires and terminate the wires as shown.
A
SK
A
Horn
B
Switch
Plug these connectors into their
respective switches, found under
the dashboard, above the pedals.
Blower
Motor
High-Beam
Turn switch
Signal
Blower
Resistor
‘87-’89 A B
NSS
Wiper (Dash Harness)
Ignition Switch
WARNING: Brake Optional for auto
The Wiper Switch connector, comes Switch transmissions.
wired for ‘87-’89 models, as shown
above. For ‘90-’93 models, remove Original wires
the orange, white and black/white from Neutral
wires and re-insert them, as shown Safety Switch
below.
Neutral Safety
‘90-’93
Switch Extension
1987-89 Ford Mustang
Classic Update Series
Page 11
www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions: Route the Engine, Front Light, Wiper, Ground and the
red Main Power Feed wires, through the driver side of
Plug the wiper connectors into the firewall, using the large circular grommet (SM)
the wiper motor. SM
salvaged from the original dash harness. Make sure
Wiper the Ground is connected to a good chassis ground.
Motor 1
Wiper SL
Motor 2
The Engine, Front Light, and red Main Power Feed can
SJ be routed in the engine compartment or in the inner
fender to hide the wires.
Engine
Front
Ground
Light Starter solenoid
Main Power
Feed
LITTLEFUSE
MEGA
175A
Mount the Mega Fuse (500689) included with this kit in a location close to the starter
solenoid. Route red main power feed to the Mega Fuse. Cut to length and install ring
terminal per the instructions included with the Mega Fuse. Use cut off portion of red
power feed wire, to connect the Mega Fuse to the battery side of the starter solenoid,
using the ring terminals supplied with the Mega Fuse kit.
1987-89 Ford Mustang
Classic Update Series
Page 12
www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions:
Use radio manufacturer’s instructions
to connect your radio.
Radio
The functions of the wire’s provided
in the dash harness are:
K J H
Cigar
Gray - Dash Lights Lighter
Tan - 12v battery feed for
Clock or memory back-up light VSS
Yellow - 12v accessory feed switch SF SA
for main radio power
Black - Ground see page 18
Blower A/C Panel A/C Mode
Switch Illuminate Switch
H J K
Aftermarket VSS P
connections:
LO
VSS Signal and VSS NORM
VENT OFF FLOOR
MIX
A/C
Ground wires, must HI MAX
VEHICLE SPEED SENSOR A/C
(16000 pulse) be twisted together,
their entire length
gasket
nut
sensor
shaft o-ring
VEHICLE SPEED SENSOR
(8000 pulse) T
VSS
M
Typical 2 wire Ground P
VSS VSS VSS connection
Typical 3 wire Autometer Ground Ground K
5291 VSS connection (black) (white) VSS
Signal
VSS VSS
VSS L
Signal Signal
VSS Power
(white) (black)
Ground www.americanautowire.com 856-933-0801
VSS Signal and VSS M
Ground wires, must R
be twisted together, cigar lighter 1987-89 Ford Mustang
their entire length
VSS D illumination Classic Update Series
Power parking brake
Page 13 (red) 510547 92970659 Rev 0.0 9/22/2014Dash/Main Harness installation instructions:
D J
original wires:
Windows
Door D black/ lt blue = dome
D Locks
original wires: and lt green/ yellow = map
and
black/white = power locks Mirrors
pink = power windows
Releases D
J
Disconnect the Door Jamb switch Dome & Map
disconnect so that the wires do Light
not become twisted while
threading the Door Jamb switch
Underdash in. Reconnect when switch is fully
Courtesy installed.
Disconnect switch from white
connector. Pass white connector
through the courtesy switch hole
from the inside. Reconnect to
the switch then thread switch in Underdash
from the outside. Courtesy
Door
Jamb
1987-89 Ford Mustang
Classic Update Series
Door
Page 14 www.americanautowire.com 856-933-0801 Jamb 510547 92970659 Rev 0.0 9/22/2014Gauge Cluster Harness (aftermarket gauges) installation instructions:
TURN SIGNAL AND HI-BEAM LAMP CONNECTIONS
LEFT TURN IND HIGH BEAM IND RIGHT TURN IND
33 lt blue lt green dk blue
(LH turn ind) (hign beam ind) (RH turn ind)
25
_ + S + + S + S +
S
33 TACH
VOLTS FUEL SPEEDO OIL TEMP
25
ALTERNATOR BRAKE WARNING
LIGHT LIGHT
Below are some general instructions for hooking up an electric speedometer.
This connector and these instructions will ONLY be used in the event that
you are utilizing an aftermarket electric speedometer. If your car does NOT
have an electric speedometer, this connection will NOT be used and should
not be plugged onto your dash harness. It is best to consult the speedometer
manufacturer’s instructions if you have any questions.
Yellow VSS Ground Connect to VSS neg. “--” on speedometer.
D C B A
139 402 Purple VSS Signal Connect to VSS input on speedometer.
139
401 Speedo power Purple/White VSS Power Connect to 12V power on speedometer.
400
400 VSS Ground Black/White Speedo Ground Connect to ground on speedometer.
401 Pink/White Speedo Power Connect to 12v power on speedometer.
VSS Signal NOTE: This wire will double onto the same
402 stud as the purple/white VSS power wire
from above.
VSS Power
See page 16. 1987-89 Ford Mustang
Classic Update Series
Page 15 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Gauge Cluster Harness (aftermarket gauges) installation instructions:
D C B A
Instrument
Cluster 1
Instrument
SG Cluster 2
Instrument
Rheostat
Rheostat
SE
See page 15.
D C B A
SD
Fog Lamp
Headlight Switch Hazard Rear
Switch
Defrost
www.americanautowire.com 856-933-0801
1987-89 Ford Mustang
Classic Update Series
Page 16
510547 92970659 Rev 0.0 9/22/2014Rear Body Harness installation instructions:
Shown below, is the side marker lamp socket you will need to salvage/remove from both sides of your original Rear Body harness, that
will be re-used (along with the supplied parts below) to complete your Rear Body harness connections. It is itemized and referred to on
this page, just as it is on the following pages of this Rear Body instruction set.
3.00
Salvaged side marker lamp socket (2);
cut 3” length of wire from original harness
SP
Shown below, are the supplied misc. terminals and plastic connector bodies, that will be used to complete your Rear Body harness con-
nections. They are itemized and referred to on this page, just as they are on the following pages of this Rear Body instruction set.
(56 series single male terminal,
H for smaller gauge wire, 7 pcs.)
A (56 series 6-way female conn, 1 pc.)
J (56 series 2-way female conn, 1 pc.)
B (56 series single female terminal, 14 pcs.)
C (56 series double female terminal, 3 pcs.)
K
(56 series 2-way male conn, 1 pc.)
D (56 series 2-way female conn, 2 pcs.)
(56 series 3-way
L male conn, 1 pc.)
E (56 series 1-way female conn, 3 pcs.)
M (small single female terminal, 3 pcs.)
F (56 series 3-way female conn, 2 pcs.)
(56 series single male terminal,
N for larger gauge wire, 1 pc.)
G (56 series 1-way male conn, 3 pcs.)
(ring terminal,
P 2 pcs.)
1987-89 Ford Mustang
Classic Update Series
Page 17 www.americanautowire.com 856-933-0801
510547 92970659 Rev 0.0 9/22/20143rd brake
light
license
lamp
rear
defrost
A B
C D
E F Rear
Body
Rear Body Harness installation instructions:
(Dash
Harness) back-up light
B
J switch
K from page 13
H
H H
H F
G
G
G
AAW universal relay kit
E 500479, is available, containing
E
E all parts and instructions needed,
C
B to wire your fuel pump.
B relay trigger to a fused
12V ignition source.
pink/85 AFTERMARKET FUEL
PUMP RELAY WIRING
red/30 orange/87
black/86 H
BBB B F H
C the Inertia Switch connector L
inertia
N
C M switch and the Brake Fluid Level
B connector (Engine), are the B
A same connectors and can be SP
SP salvaged from your original
D P D
harness, or purchased from
P a Mustang parts distributor. Ground
Ground Ground Ground Ground
Ground
1987-89 Ford Mustang
Classic Update Series
Page 18 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Front Light Harness installation instructions:
Shown below, are the supplied misc. terminals and plastic connector bodies, that will be used to complete your Front Light harness con-
nections. They are itemized and referred to on this page, just as they are on the following pages of this Front Light instruction set.
A (56 series 4-way female conn, 2 pcs.) H (sleeve, 4 pcs.)
J (single female terminal, 2 pcs.)
B (56 series single female terminal, 9 pcs.)
(56 series double female terminal, 5 pcs.) K (washer pump conn, 1 pc.)
C
D (56 series 3-way female conn, 1 pc.)
L (56 series 2-way female connector, 2 pcs.)
E (56 series 1-way female conn, 2 pcs.)
M (56 series 2-way male connector, 2 pcs.)
F (ring terminal, 5 pcs.)
(single male terminal, 2 pcs.) N (56 series single male terminal, 4 pcs.)
G
1987-89 Ford Mustang
Classic Update Series
Page 19 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Front Light Harness installation instructions:
To horn; see
next page.
CC
B
C
A
Ground
F Ground
B
A
F
B
1987-89 Ford Mustang
Classic Update Series
Page 20 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Front Light Harness installation instructions:
To fog lights;
D see next page.
H
K
G
J
H
H
G
J
H Use black Ground wire,
supplied with Front Light
harness, to make this
connection and the fog
F light connections, on the
next page.
Ground
electric relay trigger to a fused
fan pink 12 V ignition source. B
orange red
12 volt battery source.
Fused thru included
E C
in-line fuse.
black
E
Optional fan temp switch
ELECTRIC FAN RELAY WIRING sending unit
(self grounding or separate
ground terminal type)
AAW universal relay kit
500479, is available, containing
all parts and instructions needed,
to wire your electric fan. 1987-89 Ford Mustang
Classic Update Series
Page 21 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Front Light Harness installation instructions:
Ground Use black Ground wire, supplied with F
Front Light harness, to make these
F connections and the washer pump Ground
connection, on the previous page.
B B
C
B
L
L
M M
N
N N
N
Cut off the plugs, coming from the fog lights
and attach the N terminals to the wires, as shown.
1987-89 Ford Mustang
Classic Update Series
Page 22 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Engine Harness installation instructions:
Shown below, are the supplied misc. terminals, sleeves and plastic connector bodies, that will be used to complete your Engine harness
connections. They are itemized and referred to on this page, just as they are on the following pages of this Engine instruction set.
(small ring terminal for larger
A gauge wire, 1 pc.) L (10-32 nut, 1 pc.)
B (small rubber sleeve, 3 pcs.)
(56 series 2-way male
M connector, 1 pc.)
(56 series single female
C terminal, 4 pcs.)
(56 series 2-way female
(56 series single female N
D connector, 2 pcs.)
connector, 1 pc.)
(56 series single male
E terminal, 2 pcs.) P (rubber boot, 1 pc.)
F (large ring terminal, 1 pc.)
(A/C pressure switch
connector, 1 pc.)
(small ring terminal for smaller R
G gauge wire, 4 pcs.)
H (large rubber sleeve, 2 pcs.)
(large ring terminal,
T copper, 1 pc.)
J (single male terminal,1 pc.)
(small ring terminal
U for larger gauge wire,
copper, 1 pc.)
K (single female terminal, 1 pc.)
(small single female
V terminal, 3 pcs.)
1987-89 Ford Mustang
(ring terminal, Classic Update Series
W
www.americanautowire.com 856-933-0801
1 pc.) 510547
Page 23 92970659 Rev 0.0 9/22/2014Engine Harness brake
master
installation instructions: ECU
cylinder the Brake Fluid Level connector
and the Inertia Switch connector
see brake fluid (Rear Body), are the same connectors
plug in the green ignition page 25 level and can be salvaged from your
wire terminal, if feed original harness, or purchased from
you are using A/C
V a Mustang parts distributor.
W
SN * plug into A/C Ground
pressure switch
R
* tach - to negative (-)
side of coil
E
* white tach wire
C * G
to water
M*
E * temp sender
C * N * or
to oil pressure L H
A
sender
D C
*
B
* *J
see page 25
* K positive battery
B
* cable (not supplied)
a diode must be used here;
if one does not exist, AAW
has an optional inline diode
kit, p/n 500529, available
1987-89 Ford Mustang
Classic Update Series
* - if you arethese
not planning on using Air Conditioning,
items are not required.
Page 24 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014Engine Harness installation instructions: ECU power connections:
The following wires are supplied with this kit, for powering aftermarket
Alternator connections: ignition systems and fuel injection ECU’s.
Pink - 12v in run and crank key positions - This wire is already installed
3G in the Engine Kit 510560.
Grey - 12v in the run key position - This wire is supplied loose and
alternator needs to be plugged
into the location shown on
regulator page 24, if required.
Purple - 12v in crank key position - This wire is supplied loose and
can be connected
to the S terminals of the
rectifier starter solenoid and
connected to your ECU, if
bolt required.
Orange - 12v constant battery power - This wire is supplied loose and
needs to be connected to the
Main Power Feed side of the
Mega Fuse, if required.
optional alternator adapter Please refer to your ignition system or fuel injection manufacturer’s
kit, p/n 500802; see below instructions, for correctly connecting to the system that you are using.
F or U (this is not supplied with Pink - 12v in Orange - 12v Purple - 12v
G the Engine Harness) Grey - 12v in the run and crank constant battery in crank key
run key position key positions power position
P to fuse
box
H
Main B
p/n 500802 T
Power
Feed G
GM “SI” series to Ford “3G” internal
NOTE: regulated alternator
AAW recommends the use of Ford 3G
or other alternators, over the use of Mega
Ford 2G alternators, due to known
LITTLEFUSE
MEGA
Fuse
175A
failures in 2G alternator wiring.
from engine
kit, on page 24
1987-89 Ford Mustang
Classic Update Series
Page 25 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014STEP 3: RECONNECT YOUR BATTERY:
When you have completed the installation and are ready to reconnect the battery, make sure that the following
electrical system grounds are in place:
A. Battery is grounded to the ENGINE BLOCK.
B. Battery is grounded to the frame.
C. Engine block is grounded to the frame.
D. Body is grounded to the frame.
STEP 4: CHECK ALL ELECTRICAL FUNCTIONS:
Any non-functioning items should be checked for proper installation. Any problems with your wiring and electrical
circuit functions, should be addressed to American Autowire Systems, Inc. as soon as possible, to avoid any warranty problems.
If you have any questions concerning this or any of our products, please feel free to call us at 1-856-933-0801.
1987-89 Ford Mustang
Classic Update Series
Page 26 www.americanautowire.com 856-933-0801 510547 92970659 Rev 0.0 9/22/2014You can also read
