• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Loar Resistor For Parking Light/turn Signal

  • Thread starter Thread starter EGULL64
  • Start date Start date Jun 12, 2014

EGULL64

New Member
Nov 16, 2013
27
0
2
Jun 12, 2014
#1
  • Jun 12, 2014
  • #1
95 Mustang gt

Need to ad a 6 ohm 50w load resistor so I can put some led bulbs in my parking/turn signal. It's a 3157 dual filament bulb.

1) Here is what I read: there are typically three (3) wires which are the two (2) positive wires for the turn signal and parking light function and one common negative. (you might need to guess which ones to connect? Most of the time, the common ground wire is Black and the turn signal light wire is Red)

2.) Remove the factory bulb socket assembly from the housing. For dual filament bulbs, identify the positive turn signal wire using a multi-meter and mark it

That being said would my brown wire be my positive TUEN SIGNAL?
I used a multi meter & only get juice to the upper right (piece of metal) in the socket.

Here is a picture of the socket. http://s1174.photobucket.com/user/eg...?sort=3&page=1

Thanks in advance if you can help me.
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Jun 13, 2014
#2
  • Jun 13, 2014
  • #2
Did you check the voltage with the ignition switch on and the turn signal selected?

Normally one wire is ground and the other two are for the filaments.
Turn the parking lights on and then look for ground and one wire that has voltage on it. By process of elimination, the other wire is for the turn signal.
 

EGULL64

New Member
Nov 16, 2013
27
0
2
Jun 13, 2014
#3
  • Jun 13, 2014
  • #3
No, I just turned on the parking lights. Makes sense now that you said to turn on the ignition & blinker. I'm assuming the black is the ground just don't know what the brown & green & white wires are. Should I touch the metal tabs in the socket to determine which is the blinker? I have a multi meter that I can use
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Jun 13, 2014
#4
  • Jun 13, 2014
  • #4
EGULL64 said:
No, I just turned on the parking lights. Makes sense now that you said to turn on the ignition & blinker. I'm assuming the black is the ground just don't know what the brown & green & white wires are. Should I touch the metal tabs in the socket to determine which is the blinker? I have a multi meter that I can use
Click to expand...
That would work. Use the a bare (clean, shiny bare metal) spot on the body for a meter ground if you have any doubts about which wire is ground.
 

EGULL64

New Member
Nov 16, 2013
27
0
2
Jun 13, 2014
#5
  • Jun 13, 2014
  • #5
Being were the socket is I just use the battery ground. Should the multi meter move when I find the blinker circuit?
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Jun 13, 2014
#6
  • Jun 13, 2014
  • #6
EGULL64 said:
Being were the socket is I just use the battery ground. Should the multi meter move when I find the blinker circuit?
Click to expand...
With the bulb removed, it will either swing from 12 volts to 0 at a slow repetition rate or stay at 12 volts all the time.
 

EGULL64

New Member
Nov 16, 2013
27
0
2
Jun 16, 2014
#7
  • Jun 16, 2014
  • #7
OK, got everything hooked up & it works!!! Thanks for the help

I bought the test light & used it on the metal tabs in the socket to determine which wire was which!!!

Passenger side has a green/white, brown, & black wire----the green/white is the blinker, brown is the parking light & black is ground

Drivers side has a blue/white, brown, & black wire--- the blue/white wire is the blinker, brown in parking light & black is ground

So I used scotch locks to connect the 6 ohm load resistor......connect the green/white to one end & the black to the other end of the load resistor (Passenger side)

Connect the blue/white and the black wires to the load resistor (Drivers side) Make sure the connections are good & your finished.

THIS IS ON A 95 MUSTANG GT VERT

Here is a link to my photos http://s1174.photobucket.com/user/egull64/library/?sort=3&page=1
 
You must log in or register to reply here.

Similar threads

Fox Turn signal flasher keeps failing
  • keel
  • Jul 9, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
10
Views
144
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 9, 2026
Noobz347
A
1966 Mustang coupe / Brake lights and left rear turn signal not working.
  • ArizonaRob1966
  • Nov 3, 2025
  • Classic Mustang Specific Tech
Replies
2
Views
365
Classic Mustang Specific Tech Dec 24, 2025
Mcmahst
1
Electrical 1985 mustang gt Led conversion trouble
  • 1985fox
  • Jan 5, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
633
Fox 5.0 Mustang Tech Jan 15, 2026
1985fox
1
G
68 Mustang - Cluster and turning signal lights intermittent after upgrading to LED
  • grantosmond
  • Jun 14, 2025
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
0
Views
182
1965 - 1973 Classic Mustangs -General/Talk- Jun 14, 2025
grantosmond
G
O
Getting things to work and display correctly on my cluster. I would appreciate anyone's two cent's worth.
  • OfflineHomestead
  • May 7, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
29
Views
3K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 11, 2024
OfflineHomestead
O
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?