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Home >> Chevrolet >> 2006 >> Malibu SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.9L - Introduction (2 Of 2) >> Component Locator >> Engine Control Module (ECM) Connectors >> Engine Control Module (ECM) C2
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Engine Control Module (ECM) C2

Fig 1: Engine Control Module (ECM) C2 Connector End Views
GM1335545Courtesy of GENERAL MOTORS CORP.

Connector Part Information 

Terminal Part Information 

ENGINE CONTROL MODULE (ECM) C2 TERMINAL IDENTIFICATION

Pin Wire Color Circuit No. Function
1 PU 2121 IC 1 Control
2 TN/WH 3111 HO2S Low Signal (Bank 1 Sensor 1)
3 PU/WH 3110 HO2S High Signal (Bank 1 Sensor 1)
4 PU 3120 HO2S Low Signal (Bank 2 Sensor 1)
5 TN/WH 3121 HO2S Low Signal (Bank 1 Sensor 2)
6 L-BU 1876 Knock Sensor 2 Signal
7 GY 2303 Low Reference
8 D-BU 496 Knock Sensor 1 Signal
9 GY 1716 Low Reference
10 GY/BK 1798 Drain Wire
11 YE 581 TAC Motor Control 1
12 BN 582 TAC Motor Control 2
13 PK/BK 5290 Ignition 1 Voltage
14 BN 2198 Camshaft Position Actuator Solenoid High Control
15-16 - - Not Used
17 OG/WH 2122 IC 2 Control
18-22 - - Not Used
23 PK/BK 632 Low Reference
24 BK 2755 Low Reference
25 - - Not Used
26 OG/BK 645 Low Reference
27 PU 574 Low Reference
28 - - Not Used
29 TN 2752 Low Reference
30-31 - - Not Used
32 L-BU/BK 844 Fuel Injector 4 Control
33 L-BU 2123 IC 3 Control
34 - - Not Used
35 YE 2174 Low Reference
36-38 - - Not Used
39 OG/WH 815 5-Volt Reference
40 GY 2705 5-Volt Reference
41 - - Not Used
42 TN/BK 2760 Low Reference
43 L-GN 1867 12-Volt Reference
44 GY 2701 5-Volt Reference B
45 OG/BK 1175 Low Reference
46 TN 2199 Low Reference
47 - - Not Used
48 L-GN/BK 1745 Fuel Injector 2 Control
49 YE/BK 846 Fuel Injector 6 Control
50-51 - - Not Used
52 TN/WH 845 Fuel Injector 5 Control
53-58 - - Not Used
59 BN/WH 633 CMP Sensor Signal
60 TN/WH 331 Oil Pressure Sensor Signal
61 - - Not Used
62 TN 472 IAT Sensor Signal
63 L-BU/BK 647 Medium Resolution Engine Speed Signal
64 D-GN 485 TP Sensor 1 Signal
65 - - Not Used
66 PU 486 TP Sensor 2 Signal
67 YE 492 MAF Sensor Signal
68 GY/WH 3113 HO2S Heater Low Control (Bank 1 Sensor 1)
69 GY/WH 3122 HO2S Heater Low Control (Bank 1 Sensor 2)
70 - - Not Used
71 PK/BK 1746 Fuel Injector 3 Control
72 TN 1744 Fuel Injector 1 Control
73 BK/WH 451 Ground