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Home >> Cadillac >> 2016 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Wiring Systems And Power Management - Component Connector End Views - E37LR To K20 X3 (Coupe)) >> Component Connector End Views >> K20 Engine Control Module X2
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K20 Engine Control Module X2

WARNING: This page is about a different car, the 2015 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
GM1673472
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34566-0103
  • Service Connector: 88988931
  • Description: 73-Way F 0.64, 2.8 Series, Sealed (BK with BK Terminal Position Assurance)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Core Crimp Insulation Crimp
I 19301532 J-35616-16 (LT GN) J-38125-213 Not Available Not Available Not Available Not Available
II 13579770 J-35616-35 (VT) J-38125-11A Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 VT 2121 Ignition Control (1) I LSA
2 0.5 TN 1664 Heated Oxygen Sensor Low Signal Bank 1 Sensor (1) I LSA
3 0.5 VT/WH 1665 Heated Oxygen Sensor High Signal Bank 1 Sensor (1) I LSA
4 0.5 VT/WH 1668 Heated Oxygen Sensor High Signal Bank 1 Sensor (2) I LSA
5 0.5 TN/WH 1669 Heated Oxygen Sensor Low Signal Bank 1 Sensor (2) I LSA
6 0.5 L-BU 1876 Knock Sensor Signal (2) I LSA
7 0.5 GY 2303 Knock Sensor Low Reference (2) I LSA
8 0.5 D-BU 496 Knock Sensor Signal (1) I LSA
9 0.5 GY 1716 Knock Sensor Low Reference (1) I LSA
10 - - - Not Occupied - -
11 0.5 YE 581 Throttle Actuator Control Open I LSA
12 0.5 BN 582 Throttle Actuator Control Close I LSA
13 0.8 PK/BK 5290 Powertrain Main Relay Fused Supply (1) I LSA
14-15 - - - Not Occupied - -
16 0.5 PK/BK 1746 Fuel Injector Control (3) I LSA
17 0.5 VT/WH 2128 Ignition Control (8) I LSA
18 0.5 D-GN/WH 2124 Ignition Control (4) I LSA
19 0.8 BN/WH 2130 Ignition Control Low Reference Bank 2 I LSA
20-22 - - - Not Occupied - -
23 0.5 BN 6266 Camshaft CAM W Ground I LSA
24 0.8 BK 2755 Oil Pressure Sensor Low Reference I LSA
25 0.8 D-GN 7125 Super Charger Inlet Air Pressure Sensor Return I LSA
26 - - - Not Occupied - -
27 0.5 GY/BK 6272 Crankshaft 60X Sensor Low Reference I LSA
28 0.8 PK/BK 5290 Powertrain Main Relay Fused Supply (1) I LSA
29 0.5 TN 2752 Throttle Position Sensor Low Reference I LSA
30-31 - - - Not Occupied - -
32 0.5 L-GN/BK 1745 Fuel Injector Control (2) I LSA
33 0.5 OG 2127 Ignition Control (7) I LSA
34 0.5 D-GN 2125 Ignition Control (5) I LSA
35 0.8 BN 2129 Ignition Control Low Reference Bank 1 I LSA
36-38 - - - Not Occupied - -
39 0.5 D-BU 6259 Camshaft CAM W Supply Voltage I LSA
40 0.8 GY 2705 Oil Pressure Sensor 5 Volt Reference I LSA
41 0.8 YE/BK 7124 Super Charger Inlet Air Pressure Sensor Supply Voltage 5V I LSA
42 0.5 TN 2760 Intake Air Temperature Sensor Low Reference I LSA
43 0.5 VT/WH 6270 Crankshaft 60X Sensor Voltage I LSA
44 0.5 GY 2701 Throttle Position Sensor 5 Volt Reference I LSA
45 0.5 OG/BK 586 Transmission Oil Temperature Sensor Low Reference I LSA and MG9
46-47 - - - Not Occupied - -
48 0.5 D-BU/WH 878 Fuel Injector Control (8) I LSA
49 0.5 TN/WH 845 Fuel Injector Control (5) I LSA
50-51 - - - Not Occupied - -
52 0.5 YE/BK 846 Fuel Injector Control (6) I LSA
53 0.5 OG/WH 2122 Ignition Control (2) I LSA
54 0.5 L-BU/WH 2126 Ignition Control (6) I LSA
55 0.5 L-BU 2123 Ignition Control (3) I LSA
56-58 - - - Not Occupied - -
59 0.5 D-BU/WH 6265 Camshaft CAM W Signal I LSA
60 0.8 TN/WH 331 Oil Pressure Sensor Signal I LSA
61 - - - Not Occupied - -
62 0.5 TN 472 Intake Air Temperature Sensor Signal I LSA
63 0.5 WH/BK 6271 Crankshaft 60X Sensor Signal I LSA
64 0.5 D-GN 485 Throttle Position Sensor Signal (1) I LSA
65 0.5 TN/WH 585 Transmission Oil Temperature Sensor Signal I LSA and MG9
66 0.5 VT 486 Throttle Position Sensor Signal (2) I LSA
67 0.5 YE 492 Mass Air Flow Sensor Signal I LSA
68 0.5 GY/WH 3113 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (1) I LSA
69 0.5 GY/WH 3122 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (2) I LSA
70 0.5 L-BU/BK 844 Fuel Injector Control (4) I LSA
71 0.5 OG/BK 877 Fuel Injector Control (7) I LSA
72 0.5 TN 1744 Fuel Injector Control (1) I LSA
73 3 BK 1550 Ground II LSA