For 1990-2009 cars

#### Engine Control Module (ECM) - Sirius D4

Connector Part Information |

• | FC1

• | 90-Way Connector (BK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1-2 | -- | -- | Not Used
3 | BK/WH | 51 | Ground
4 | -- | -- | Not Used
5 | D-BU | 436 | Exhaust Gas Recirculation (EGR) Valve Control
6 | YE/D-BU | 497 | Fuel Pump Relay Control
7 | BN | 1741 | Ignition 3 Voltage
8 | WH | 135 | Engine Coolant Temperature (ECT) Gage Control
9 | D-BU | 473 | High Speed Cooling Fan Relay Control
10 | D-GN | 335 | Low Speed Cooling Fan Relay Control
11 | BK | 51 | Ground
12 | D-BU/WH | 1876 | Low Reference
13 | BK | 808 | Low Reference
14 | PU | 1670 | Heated Oxygen Sensor (HO2S) 2 Low Reference
15 | -- | -- | Not Used
16 | L-BU | 733 | Heated Oxygen Sensor (HO2S) 2 Heater Control
17 | L-BU/BK | 1748 | Camshaft Position (CMP) Sensor Signal
18 | -- | -- | Not Used
19 | BK | 808 | Low Reference
20 | BN/OG | 380 | A/C Pressure Sensor Signal
21 | GY | 1936 | Fuel Level Sensor Signal
22 | L-GN/WH | 1749 | Low Reference
23 | WH/BK | 448 | Serial Data
24 | BK/WH | 51 | Ground
25 | BK/WH | 51 | Ground
26 | -- | -- | Not Used
27 | BN | 1456 | Exhaust Gas Recirculation (EGR) Valve Position Sensor Signal
28 | BK/WH | 51 | Ground
29 | PK | 1739 | Ignition 1 Voltage
30 | OG | 440 | Battery Positive Voltage
31 | WH | 423 | Ignition Coil and 2 and 3 Control
32 | OG | 406 | Ignition Coil and 1 and 4 Control
33 | BK/WH | 51 | Ground
34 | -- | -- | Not Used
35 | BN/WH | 50 | Heated Oxygen Sensor (HO2S) 1 Signal
36-38 | -- | -- | Not Used
39 | PU/WH | 1035 | Malfunction Indicator Lamp (MIL) Control
40 | WH | 30 | Fuel Gage Control
41 | D-GN | 67 | A/C Clutch Relay Control
42 | YE/BK | 496 | Knock Sensor (KS) Signal
43 | L-GN/WH | 534 | Idle Motor Position Signal
44 | D-GN/WH | 428 | Heated Oxygen Sensor (HO2S) 1 Low Reference
45 | D-GN | 435 | Exhaust Gas Recirculation (EGR) Valve Control
46 | L-BU | 1937 | Low Reference
47-48 | -- | -- | Not Used
49 | D-BU | 732 | Evaporator Temperature Sensor Signal
50 | L-BU/WH | 432 | Manifold Absolute Pressure (MAP) Sensor Signal
51 | D-GN | 817 | Vehicle Speed Signal
52 | D-GN/WH | 762 | A/C Request Signal
53 | L-BU | 832 | Rough Road Signal w/ABS
53 | D-GN | 872 | Rough Road Signal w/o ABS
54 | BK/WH | 1869 | Crankshaft Position (CKP) Sensor Signal
55 | PU | 427 | Idle Switch Position Signal
56 | PU | 2000 | Serial Data
57 | YE | 710 | CAN Serial Data Low
58 | -- | -- | Not Used
59 | BN/BK | 1747 | Fuel Injector 1 Control
60 | BN/WH | 1745 | Fuel Injector 3 Control
61 | WH/BN | 425 | Idle Speed Motor Return
62 | D-BU | 426 | Idle Speed Motor Feed
63 | -- | -- | Not Used
64 | PU | 1671 | Heated Oxygen Sensor (HO2S) 2 Signal
65 | BK | 452 | EVAP Canister Purge Valve Solenoid Control
66 | BN | 1541 | Ignition 3 Voltage
67 | BK/WH | 51 | Ground
68 | GY | 121 | Engine Speed Signal
69-73 | -- | -- | Not Used
74 | L-GN | 417 | Throttle Position (TP) Sensor Signal
75 | GY/BK | 433 | Manifold Absolute Pressure (MAP) Sensor Signal
76 | L-GN | 410 | Engine Coolant Temperature (ECT) Sensor Signal
77 | -- | -- | Not Used
78 | L-BU | 468 | Intake Air Temperature (IAT) Sensor Signal
79 | D-GN/WH | 416 | 5-Volt Reference
80 | -- | -- | Not Used
81 | D-GN | 890 | Octane Selection Switch
82 | -- | -- | Not Used
83 | YE/D-BU | 1056 | Power Steering Pressure Switch Signal
84 | PU | 833 | Rough Road Sensor Return
85 | D-BU/WH | 1868 | Low Reference
86-87 | -- | -- | Not Used
88 | PU | 1807 | CAN Serial Data High
89 | YE/D-BU | 1744 | Fuel Injector 4 Control
90 | L-GN/BK | 1746 | Fuel Injector 2 Control