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Fox 1993 LX 2.3 Wiring

  • Thread starter Thread starter Coyoteswap93
  • Start date Start date Monday at 10:12 AM
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Coyoteswap93

New Member
Jul 13, 2026
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Florida
Monday at 10:12 AM
#1
  • Monday at 10:12 AM
  • #1
Hello, I have a 93 LX that was a previous 2.3 car, now it’s coyote swapped, i’m looking for help identifying some wiring to see what I can clean up and what’s needed for basic functionality.
 

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Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,247
17,927
224
Massachusetts
Monday at 12:24 PM
#2
  • Monday at 12:24 PM
  • #2


Left to right

ECU ground. Circuit breaker for power windows/locks. Red wire is the starter solenoid trigger wire.

Yellow feeds power to bunch of stuff

 
C

Coyoteswap93

New Member
Jul 13, 2026
2
0
1
Florida
Monday at 12:30 PM
#3
  • Monday at 12:30 PM
  • #3
Mustang5L5 said:


Left to right

ECU ground. Circuit breaker for power windows/locks. Red wire is the starter solenoid trigger wire.

Yellow feeds power to bunch of stuff

Click to expand...
Appreciate that! So for that portion I only need the yellow power wire then, car has manual windows and manual locks. Thanks!
 

keel

Active Member
Aug 23, 2020
221
77
38
Seattle, Wa
Monday at 12:37 PM
#4
  • Monday at 12:37 PM
  • #4
Brown 8-pin plug in the first pic connects the engine harness and body harness I believe for signals to the gauges. Usually this is routed through the firewall and into the engine bay and not out into the fenderwell so maybe the previous owner did a wire tuck? Same goes for all the wires shown in the second pic.

Third pic it's hard for me to tell if those wires belong in the bay or in the fenderwell. I think the flat looking black 2 pin connector is for the windshield washer motor but that is all I can say with any confidence.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,247
17,927
224
Massachusetts
Monday at 1:13 PM
#5
  • Monday at 1:13 PM
  • #5
Coyoteswap93 said:
Appreciate that! So for that portion I only need the yellow power wire then, car has manual windows and manual locks. Thanks!
Click to expand...

The circuit breaker also does the plug under the seats that would send power to the power lumbar or drivers seat track


 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,247
17,927
224
Massachusetts
Monday at 1:18 PM
#6
  • Monday at 1:18 PM
  • #6


Big one at top left corner is the DRL shorting plug. On canadian cars, there is a module here. On US cars they get a shorting plug, which is what you have. You can likely cut it out provided you ID what wires short to what and keep those connections intact in the harness. I would just leave it alone and tuck it.

2pin plug at 3 o-clock is windshield washer pump motor.

I believe all air-bag related plugs on the 90-93 cars are blue which would be the one at 12 o-clock.




 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,247
17,927
224
Massachusetts
Monday at 1:22 PM
#7
  • Monday at 1:22 PM
  • #7


Little three pin connector is the low fluid plug for the master cylinder reservoir. The other plug i believe connects to the original engine harness and go across the firewall pinch weld. You prob don't need that now.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,848
3,979
183
Claremore, OK
Monday at 2:08 PM
#8
  • Monday at 2:08 PM
  • #8
I think Mustang5L5 has you covered but the complete wiring diagrams for the 1993 are here:

Resource icon

1993 Mustang Complete Electrical Wiring Diagrams

Dec 22, 2025
OEM Wiring Diagrams
  • AeroCoupe
  • Mustang Reference Material
 
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