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Home >> Cadillac >> 2006 >> CTS V >> Repair and Diagnosis >> Quick Lookups >> Wiring Diagrams >> OEM Connector End Views >> Connector End Views >> Engine Control Module (ECM) Connector End View - C2 (6.0L)
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Engine Control Module (ECM) Connector End View - C2 (6.0L)

Engine Control Module (ECM) Connector End View - C2

GM1581643Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12582677
  • 73-Way F Micro-Pack 64 Sealed (BK)
Pin Wire Color Circuit No. Function
1 PU 2121 IC 1 Control
2 TN 1664 HO2S Low Signal - Bank 1 Sensor 1
3 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1
4 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2
5 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2
6 L-BU 1876 Knock Sensor 2 Signal
7 TN 407 Low Reference
8 D-BU 496 Knock Sensor/Signal
9 GY 1716 Low Reference
10 - - Not Used
11 YE 581 TAC Motor Control - 1
12 BN 582 TAC Motor Control - 2
13 PK/BK 5290 Powertrain Main Relay Fused Supply
14-15 - - Not Used
16 L-BU/BK 1746 Fuel Injector 3 Control
17 PU/WH 2128 IC 8 Control
18 D-GN/WH 2124 IC 4 Control
19 BN/WH 2130 Low Reference
20-22 - - Not Used
23 PK/BK 632 Low Reference
24 BK 2755 Low Reference
25-26 - - Not Used
27 YE/BK 1868 Low Reference
28 PK/BK 5290 Powertrain Main Relay Fused Supply
29 TN/WH 1704 Low Reference
30-31 - - Not Used
32 L-GN/BK 1745 Fuel Injector 2 Control
33 OG 2127 IC 7 Control
34 D-GN 2125 IC 5 Control
35 BN 2129 Low Reference
36-38 - - Not Used
39 OG 631 12-Volt Reference
40 GY 2705 5-Volt Reference
41 - - Not Used
42 TN 552 Low Reference
43 L-GN 1867 12-Volt Reference
44 L-BU/WH 1688 5-Volt Reference
45-47 - - Not Used
48 D-BU/WH 878 Fuel Injector 7 Control
49 TN/WH 845 Fuel Injector 5 Control
50-51 - - Not Used
52 YE/BK 846 Fuel Injector 6 Control
53 OG/WH 2122 IC 2 Control
54 L-BU/WH 2126 IC 6 Control
55 L-BU 2123 IC 3 Control
56-58 - - Not Used
59 BN/WH 633 CMP Sensor
60 TN/WH 331 Oil Pressure Sensor Signal
61 - - Not Used
62 TN 472 IAT Sensor Signal
63 D-BU/WH 1869 CKP Sensor 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 BN 2391 HO2S Heater Low Control - Bank 1 Sensor 2
70 L-BU/BK 844 Fuel Injector 4 Control
71 OG/BK 877 Fuel Injector 7 Control
72 TN 1744 Fuel Injector 1 Control
73 BK 750 Ground