87-90 Mustang and 87-88 Turbo Coupe Computer
Pin-Out Comparison Chart

PIN

Mustang Computer

Wire Color Name

Turbo Coupe Computers

Wire Color Name

1(?)

Keep Alive Power

Black/Pink KAPWR

Keep Alive Power

Yellow KAPWR

2(?)

Brake On/Off

Red/Lt-Green BOO

Brake On/Off

Lt-Green BOO

3

PS Pressure Switch

Yellow/Dk-Green PSPS

 Ride Ctrl Instrument Cluster

Dk-Green/White VSS DIF

4

Ignition Diagnostic Monitor

Dk-Green/Yellow IDM

Ignition Diagnostic Monitor

Dk-Green/Yellow IDM

5

 

   

 

   
6      

Cruise Control

Orange/Yellow VSS DIF

7

ECT Sensor

Lt-Green/Yellow ECT

ECT Sensor

Lt-Green/Yellow ECT

8

 

   

 

   

9

 

   

 

   

10

A/C Clutch

Black/Yellow ACC

A/C Clutch

Black/Yellow A/C Clutch

11

 

   

 

   

12

 

   

 

   

13

 

   

 

   

14

 

   

 

   

15

 

   

 

   

16

 Ignition Ground

Black/Orange IGN GND

Ignition Ground

Black/Orange IGN GND

17(?)

Self Test Output

Tan (?) STO/MIL

Self Test Output

Yellow/Black STO

18

 

   

 

   

19

 

   

 

   

20(?)

Case Ground

Black CASE GND

Case Ground

Black/Lt-Green CASE GND

21(?)

Idle Speed Control

Tan/Dk-Green ISC

Idle Speed Control

Orange/Black ISC

22

Fuel Pump Control

Tan/Lt-Green FP

Fuel Pump Control

Tan/Lt-Green FP

23

Knock Sensor

Yellow/Red KS

Knock Sensor

Yellow/Red KS

24

Thermo AC Switch

White/Blue ACD

Premium Fuel Switch

Red/Yellow OCTANE SW

25(?)

ACT Sensor

Lt-Green/Black ACT

ACT Sensor

Pink/Black ACT

26

Voltage Reference

Orange/White VREF

Voltage Reference

Orange/White VREF

27

EGR Valve Position Sensor

Brown/Lt-Green now Back White EVP

Vane Air Flow Meter

White/Black VAF

28

 

   

 

   

29

EGO Sensor

Dk-Green/Purple HEGO

EGO Sensor

Dk-Green/Purple HEGO

30(?)

Neutral Input

Black/Yellow NDS/NGS CES

Neutral Input

Brown/White NDS/NGS CES

31

 

   

Boost Control Solenoid

Black/Pink BOOST

32

 

   

 

   

33

EGR Vent Solenoid

Dk-Green EGRV

EGR Control Solenoid

Yellow EGR S/O

34

 

   

 Data Output Link

Lt-Blue/Purple DOL

35

 

   

 Ride Control Module

Orange/White ACL

36

Spark Output

Yellow/Lt-Green SPOUT

Spark Output

Yellow/Lt-Green SPOUT

37

Vehicle Sensor Power

Red VPWR

Vehicle Sensor Power

Red V  PWR

38

 

   

 

   

39

 

   

 

   

40

Battery Ground

Black/Lt-Green PWRGND

Battery Ground

Black/Lt-Green PWR GND

41

 

   

 

   

42

 

   

 Kick Down Solenoid

Yellow/Lt-Blue KDS

43

 

   

Vane Air Temperature Sensor

Lt-Green/Purple VAT

44

 

   

 

   

45

MAP Sensor

Lt-Green/Black MAP

BAP Sensor

Lt-Blue/Black BP

46

Signal Return

Black/White SIG RTN

Signal Return

Black/White SIG RNT

47

TPS Sensor

Dk-Green/Lt-Green TP

TPS Sensor

Dk-Green/Lt-Green TP

48

Self Test Input

White/Red STI

Self Test Input

White/Red STI

49

EGO Sensor Ground

Orange HEGO GND

EGO Sensor Ground

Orange HEGOG

50

 

   

 

   

51

 

   

 

   

52

EGR Control Solenoid

Yellow EGRC

High Electro Drive Fan

Pink HEDF

53(?)