Section 07-05: Transmission, Automatic—External Controls
1994 Mustang Workshop Manual
DIAGNOSIS AND TESTING

Electrical Schematics



Shift Lock






Transmission Control Indicator Lamp (TCIL) and Transmission Control Switch (TCS), 3.8L Engine






Transmission Control Indicator Lamp (TCIL) and Transmission Control Switch (TCS), 5.0L Engine






Connector End Views


3.8L Engine






Pin Number Circuit Circuit Function
1 315 (P/O Shift Solenoid #2 Output
2 658 (PK/LG) Malfunction Indicator Lamp
3 Not Used
4 229 (R/O) Low Fan Control Monitor Input
5 Not Used
6 Not Used
7 Not Used
8 Not Used
9 Not Used
10 Not Used
11 Not Used
12 Not Used
13 107 (P) Flash EEPROM Power Supply Pin
14 Not Used
15 915 (PK/LB) Data Link Connector (DLC) Bus (-)
16 914 (T/O) Data Link Connector (DLC) Bus (+)
17 639 (LG/P) High Fan Control Output
18 Not Used
19 Not Used
20 Not Used
21 Not Used
22 Not Used
23 259 (O/R) Ignition Ground
24 136 (DB/Y) Power Ground
25 57 (BK) Case Ground
26 Not Used
27 237 (O/Y) SHift Solenoid #1 Output
28 Not Used
29 224 (T/W) Transmission Control Switch Input
30 242 (DG) Octane Adjustment
31 Not Used
32 Not Used
33 676 (PK/O) Vehicle Speed Sensor (VSS) Input (-)
34 Not Used
35 392 (R/LG) Right Rear Heated Oxygen Sensor (HO2S) Input
36 968 (T/LB) Mass Air Flow Sensor Return
37 923 (O/BK) Transmission Oil Temperature Sensor Input
38 354 (LG/R) Engine Coolant Temperature Sensor Input
39 743 (GY) Inlet Air Temperature Sensor Input
40 238 (DG/Y) Fuel Pump Monitor Input
41 198 (DG/O) Air Conditioning Cycling Switch Input
42 Not Used
43 Not Used
44 Not Used
45 Not Used
46 Not Used
47 360 BR/PK) EGR Vacuum Regulator (EVR) Output
48 659 (O/W) Ignition Diagnostic Monitor Input
49 395 (GY/O) Profile Ignition Pickup (PIP) Input
50 929 (PK) Spark (SPOUT) Output
51 570 (BK/W) Power Ground
52 Not Used
53 Not Used
54 Not Used
55 37 (Y) Keep Alive Power
56 Not Used
57 Not Used
58 679 (GY/BK) Vehicle Speed Sensor (VSS) Input (+)
59 Not Used
60 74 (GY/LB) Right Front Heated Oxygen Sensor (HO2S) Input
61 393 (P/LG) Left Rear Heated Oxygen Sensor (HO2S) Input
62 Not Used
63 Not Used
64 199 (LB/Y) Manual Lever Position Sensor Input
65 352 (BR/LG) Delta Pressure Feedback EGR Sensor Input
66 209 (W/P) Data Link Connector (DIC)
67 101 (GY/Y) Canister Purge Solenoid Output
68 Not Used
69 331 (PK/Y) A/C WOT Cutout Relay Output
70 Not Used
71 361 (R) Power (VPWR)
72 Not Used
73 559 (T/BR) Fuel Injector #5 Output
74 557 (BR/Y) Fuel Injector #3 Output
75 555 (T) Fuel Injector #1 Output
76 570 (BK/W) Power Ground
77 570 (BK/W) Power Ground
78 Not Used
79 911 (W/LG) Transmission Control Indicator Lamp Output
80 926 (LB/O) Fuel Pump Relay Output
81 925 (W/Y) Electronic Pressure Control Output
82 125 (DB/W) Transmission Converter Clutch Solenoid Output
83 264 (W/LB) Idle Air Control (IAC) Valve Output
84 970 (DG/W) Transmission Speed Sensor Input
85 (DB/O) Cylinder Identification (CID) Sensor Input
86 439 (T/LG) A/C Head Pressure Switch Input
87 94 (R/BK) Left Front Heated Oxygen Sensor (HO2S) Input
88 967 (LB/R) Mass Air Flow (MAF) Sensor Input
89 355 (GY/R) Throttle Position Sensor Input
90 351 (BR/W) Reference Voltage
91 359 (GY/R) Signal Return
92 511 (LG) Brake Switch Input
93 387 (R/W) Right Front Heated Oxygen Sensor (HO2S) Output
94 388 (Y/LB) Left Front Heated Oxygen Sensor (HO2S) Output
95 389 (W/BK) Right Rear Heated Oxygen Sensor (HO2S) Output
96 390 (T/Y) Left Rear Heated Oxygen Sensor (HO2S) Output
97 361(R) Power (VPWR)
98 228 (DB) Low Fan Control Output
99 560 (LG/O) Fuel Injector #6 Output
100 558 (BR/LB) Fuel Injector #4 Output
101 556 (W) Fuel Injector #2 Output
102 Not Used
103 570 (BK/W) Power Ground
104 Not Used



5.0L Engine






Pin Number Circuit Circuit Function
1 37 (Y) Keep Alive Power
2 511 (LG) Brake ON/OFF Input (Automatic Only)
3 679 (GY/BK) Vehicle Speed Sensor (VSS) Input (+)
4 648 (W/PK) Ignition Diagnostic Monitor
5 970 (DG/W) Transmission Speed Sensor (TSS) (Automatic Only)
6 676 (PK/O) Vehicle Speed Sensor (VSS) Ground (-)
7 354 LG/R) Engine Coolant Temperature
8 238 (DG/Y) Fuel Pump Monitor
9 968 (T/LB) Mass Air Flow (MAF) Sensor Return
10 198 (DG/O) A/C Clutch Signal (ACCS)
11 101 (GY/Y) Canister Purge (CANP) Solenoid Output
12 560 (LG/O) Fuel Injector #6 Output
13 561 (T/R) Fuel Injector #7 Output
14 562 (LB) Fuel Injector #8 Output
15 559 (T/BK) Fuel Injector #5 Output
16 259 (O/R) Ignition Control Module
17 658 (PK/LG) Self-Test Output/Malfunction Indicator Light
18 914 (T/O) Data (+)
19 915 (PK/LB) Data (-)
20 57 (BK) Case Ground
21 264 (W/LB) Idle Air Control (IAC) Solenoid Output
22 926 (LB/O) Fuel Pump Output
23 Not Used
24 Not Used
25 743 (GY) Intake Air Temperature (IAT) Sensor
26 351 (BR/W) Reference Voltage (VREF)
27 352 (BR/LG) EGR Valve Position Sensor
28 Not Used
29 Not Used
30 199 (LB/Y) Manual Lever Position Sensor (Automatic Only)
31 190 (W/O) Secondary Air Injection Bypass (AIRB) Solenoid
32 639 (LG/P0 High Fan Control
33 360 (BR/PK) EGR Vacuum Regulator (EVR) Solenoid
34 200 (BR) Secondary Air Injection Diverter (AIRD) Solenoid
35 558 (BR/LB) Fuel Injector #4 Output
36 929 (PK) Spark Output (SPOUT)
37 361 (R) Vehicle Power
38 925 (W/Y) Electronic Pressure Control Output
39 557 (BR/Y) Fuel Injector #3 Output
40 570 (BK/W) Ground
41 224 (T/W) Transmission Control Switch (TCS) (Automatic Only)
42 883 (PK/LB) A/C High Pressure Switch
43 94 (R/BK) Left Heated Oxygen Sensor (HO2S)
44 74 (GY/LB) Right Heated Oxygen Sensor (HO2S)
45 Not Used
46 359 (GY/R) Sensor Signal Return (SIG RTN)
47 355 (GY/W) Throttle Position (TP) Sensor Feed
48 209 (W/P) Self-Test Input (STI)
49 923 O/BK) Transmission Oil Temperature Sensor (Automatic Only)
50 967 (LB/R) Mass Air Flow (MAF) Sensor
51 237 (O/Y) Shift Solenoid #1 (Automatic Only)
52 315 (P/O) Shift Solenoid #2 (Automatic Only)
53 924 (BR/O) Torque Converter Clutch (Automatic Only)
54 331 (PK/Y) Wide Open Throttle (WOC) A/C Cutoff (WAC)
55 228 DB) Low Fan Control
56 395 (GY/O) Profile Ignition Pickup (PIP)
57 361 (R) Vehicle Power
58 555 (T) Fuel Injector #1 Output
59 556 (W) Fuel Injector #2 Output
60 570 (BK/W) Ground



3.8L and 5.0L Engine






Pin Number Circuit Circuit Function
1 237 (O/Y) Shift Solenoid #1
2 361 (R) Vehicle Power
3 924 (BR/O) Torque Converter Clutch Solenoid
4 Not Used
5 923 (O/BK) Transmission Oil Temperature (TOT)
6 315 (P/O) Shift Solenoid #2
7 361 (R) Vehicle Power
8 361 (R) Vehicle Power
9 359 (GY/R) Signal Return
10 925 (W/Y) Electronic Pressure Control (EPC) Solenoid



5.0L Engine






Pin Number Circuit Circuit Function
1 1012 (O/BK) Powertrain Control Module
2 224 (T/W) Transmission Control Switch
3 570 (BK/W) Ground
4 Not Used
5 16 (R/LG) Instrument Panel Fuse Panel
6 911 (W/LG) Transmission Control Indicator Lamp