What is this connector used for? 72 under dash,

Help Support 7173Mustangs.com:

71steed

Well-known member
Joined
Aug 28, 2011
Messages
333
Reaction score
4
Location
Coram, Long Island, NY
My Car
66 GT coupe
67 GTA convertible
69 Fastback, Boss 429 clone
69 GT coupe
71 Sports coupe
71 Mach 1
73 Mach 1
20141026_171001[1].jpg 20141026_170951[1].jpg I have this n72 underdash harness. Car has tach, ac, seat back release. This connector is above the glove box area where the relays are located.
 

c9zx

VIP Members
Joined
Sep 30, 2010
Messages
5,433
Reaction score
336
Location
Mustang, OK.
My Car
1972 Mach 1 Q code
2007 GT
1969 Cougar Eliminator B302
CSX 7000 Shelby Cobra FIA
2020 Edge ST
2002 F250 V10
I have this n72 underdash harness. Car has tach, ac, seat back release. This connector is above the glove box area where the relays are located.
It looks like C-41, headlamp on warning and key reminder buzzer, headlamp on relay, and left door jamb switch. Chuck

 

71steed

Well-known member
Joined
Aug 28, 2011
Messages
333
Reaction score
4
Location
Coram, Long Island, NY
My Car
66 GT coupe
67 GTA convertible
69 Fastback, Boss 429 clone
69 GT coupe
71 Sports coupe
71 Mach 1
73 Mach 1
I have this n72 underdash harness. Car has tach, ac, seat back release. This connector is above the glove box area where the relays are located.
It looks like C-41, headlamp on warning and key reminder buzzer, headlamp on relay, and left door jamb switch. Chuck
Chuck, does it connect to the convenience group harness as shown above? Is 72 convenience separate from dash harness? Is 71 and 73 separate?



For connection with this piece of wiring...
What year is that for? 72 or 73?

 
Last edited by a moderator:

c9zx

VIP Members
Joined
Sep 30, 2010
Messages
5,433
Reaction score
336
Location
Mustang, OK.
My Car
1972 Mach 1 Q code
2007 GT
1969 Cougar Eliminator B302
CSX 7000 Shelby Cobra FIA
2020 Edge ST
2002 F250 V10
I have this n72 underdash harness. Car has tach, ac, seat back release. This connector is above the glove box area where the relays are located.
It looks like C-41, headlamp on warning and key reminder buzzer, headlamp on relay, and left door jamb switch. Chuck
Chuck, does it connect to the convenience group harness as shown above? Is 72 convenience separate from dash harness? Is 71 and 73 separate?



For connection with this piece of wiring...
What year is that for? 72 or 73?
The drawing is dated 10/15/71 so 1972. Sorry I don't have 73 drawings. Chuck

 

midlife

Shorts checker
Joined
Jan 24, 2012
Messages
4,084
Reaction score
502
Location
Tucson, AZ
My Car
No Mustangs at the moment.
There's a similar plug on the headlight harness just beyond the connector to the fuse box, also on the 72. I've never figured out the purpose of either connector, as they both can accept the same plug. Anyone know what that one is for?

Hi 71Steed! I talked with you this evening!

 
Joined
Feb 1, 2013
Messages
3,752
Reaction score
37
Location
Richland, WA
My Car
1973 Mustang Mach 1 Q code C6 tranny
I have this n72 underdash harness. Car has tach, ac, seat back release. This connector is above the glove box area where the relays are located.
It looks like C-41, headlamp on warning and key reminder buzzer, headlamp on relay, and left door jamb switch. Chuck
+1

For a 72 it looks like its C-41. Looks like it also is used for the emergency brake warning light. The harness that Eddy shows has the Park indicator on it.

In a 73 it looks like its C-702, same functions and also looks like it's part of the seat back solenoids.

Hard to be sure though without tracing the lines and using a multi-meter though.

 
Top