Engine Control Module Connector End Views
Engine Control Module (ECM)
61 75 46 76 90
60
31
1 15 45 16 30
Connector Part Information
OEM: FC1
Service: N/A
Description: 90-Way F (BK)
Engine Control Module (ECM)
Pin Wire Circuit Function
1–2 — — Not Used
3 BK 750 Ground
4 — — Not Used
5 WH 257 Exhaust Gas Recirculation (EGR) Valve Control (EC2000/EC2500)
6 D-GN/WH 465 Fuel Pump Relay Control
7 GY/BK 1029 Main Relay Control
8 D-GN/WH 135 Temperature Gauge Signal
9 D-BU 473 High Speed Cooling Fan Control
10 D-GN 335 Low Speed Cooling Fan Control
11 BK/WH 951 Shield Ground
12 YE/BK 457 Knock Sensor (KS) Signal
13 GY/BK 720 Low Reference
14 PU/D-GN 1980 Heated Oxygen Sensor (HO2S) 2 Signal (EC2000/EC2500)
15 — — Not Used
16 BN/D-BU 718 Low Reference
17 BN 808 Low Reference
18 — — Not Used
19 PK/BK 632 Low Reference
Pin Wire Circuit Function
20–21 — — Not Used
22 BN/WH 633 Camshaft Position (CMP) Sensor Signal
23 — — Not Used
24 BK 750 Ground
25 BK/WH 1451 Shield Ground
26 — — Not Used
GY 2642 Octane Selection Switch Signal (w/Octane Selection Switch)
27
BK 750 Ground (w/o Octane Selection Switch)
28 BK 750 Ground
29 PK/RD 339 Ignition 1 Voltage
30 RD/BK 1240 Camshaft Position (CMP) Sensor Signal
31 OG 406 Ignition Coil and 2 and 3 Control
32 WH 423 Ignition Coil and 1 and 4 Control
33 BK 750 Ground
34 — — Not Used
35 D-BU/WH 1677 Heated Oxygen Sensor (HO2S) 1 Heater Control (Euro Emissions and EC2000/EC2500)
36–38 — — Not Used
39 BN/WH 419 Malfunction Indicator Lamp (MIL) Control
40 PU 30 Fuel Gauge Signal
41 D-GN/WH 459 A/C Clutch Relay Control
42 D-BU 496 Knock Sensor (KS) Signal
43 D-GN 534 Idle Motor Position Signal
44 D-GN/PK 412 Heated Oxygen Sensor (HO2S) 1 Signal
45 BN 1456 Exhaust Gas Recirculation (EGR) Valve Position Signal
46 GY/YE 596 Fuel Sender Signal
47–48 — — Not Used
49 D-BU 732 Evaporator Temperature Sensor Signal
50 GY 474 5-Volt Reference
51 BN/D-GN 437 Vehicle Speed Sensor (VSS) Signal
52 D-GN/WH 762 A/C Request Signal
53 WH 1909 Rough Road Signal (w/ABS)
Pin Wire Circuit Function
WH 1909 Rough Road Signal (w/o ABS)
54 D-BU/WH 1869 Crankshaft Position (CKP) Sensor Signal High
55 PK 427 Idle Switch Position Signal
56 PU 1319 Serial Data
57–58 — — Not Used
59 BN 1744 Fuel Injector 1 Control
60 PK/BK 1746 Fuel Injector 3 Control
61 L-BU 425 Idle Speed Motor Return
62 D-BU 426 Idle Speed Motor Feed
63 — — Not Used
64 D-GN 676 Heated Oxygen Sensor (HO2S) 2 Heater Signal (EC2000/EC2500)
65 D-GN/WH 428 EVAP Canister Purge Valve Solenoid Control
66 OG/BK 1733 Ignition 1 Voltage
67 BK 750 Ground
68 WH 121 Tachometer Signal
69–73 — — Not Used
74 D-BU 417 Throttle Position (TP) Sensor Signal
75 L-GN 432 Manifold Absolute Pressure (MAP) Sensor Signal
76 YE 410 Engine Coolant Temperature (ECT) Sensor Signal
77 — — Not Used
78 BN 472 Intake Air Temperature (IAT) Sensor Signal
79 GY 2702 5-Volt Reference
80 — — Not Used
81 YE 2643 Octane Switch Signal (Euro 96 and US83 Emissions)
82 — — Not Used
83 OG/BK 495 Power Steering Pressure Switch Signal
84 — — Not Used
85 YE/BK 1868 Low Reference
86 BN/WH 312 Headlamp Relay Control
87–88 — — Not Used
89 L-BU 844 Fuel Injector 4 Control
Pin Wire Circuit Function
90 L-GN/BK 1745 Fuel Injector 2 Control
