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K20 Engine Control Module X3 (LSY)

WARNING: This page is about a different car, the 2023 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
GM1650395Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine Wiring Harness
  • OEM Connector: 12672862
  • Service Connector: 19333091
  • Description: 73-Way F 0.64, 2.8 Series, Sealed (BK with GY Terminal Position Assurance)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I 13587518 J-35616-35 (VT) J-38125-11A
II 19354746 J-35616-64B (L-BU) J-38125-215A
Pin Size Color Circuit Function Terminal Type ID Option
1 - - - Not Occupied - -
2 0.5 GN 3060 Turbocharger Bypass Solenoid Valve Control Bank 1 II LSY
3 0.5 BN 25 Charge Indicator Control II LSY
4 0.5 VT/BU 6091 Crankshaft Position Sensor Replicated Signal II LSY
5 - - - Not Occupied - -
6 0.5 VT/BU 6270 Crankshaft Position Sensor Voltage II LSY
7 0.5 BN/RD 2701 Throttle Position Sensor 5V Reference II LSY
8 0.5 BU/WH 7446 Fuel Pressure Sensor Signal II LSY
9 0.5 GN/WH 432 Manifold Absolute Pressure Sensor Signal II LSY
10 0.5 VT/BU 3120 HO2S High Signal Bank 1 Sensor 2 II LSY
11 0.5 WH/YE 3121 HO2S Low Signal Bank 1 Sensor 2 II LSY
12 0.5 VT/BN 5284 Intake Camshaft Position Actuator Solenoid Valve 1 II LSY
13 0.5 GY/BU 5282 Exhaust Camshaft Position Actuator Solenoid Valve 1 II LSY
14 0.75 BU 2976 Coolant Diverter Valve Actuator Control Open II LSY
15 0.75 WH/BN 2591 Turbocharger Wastegate Motor Open Control II LSY
16 0.75 WH/BU 2592 Turbocharger Wastegate Motor Close Control II LSY
17 - 20 - - - Not Occupied - -
21 0.75 BK/YE 548 Engine Control Sensors Low Reference 1 II LSY
22 0.5 BK/VT 6272 Crankshaft Position Sensor Low Reference II LSY
23 0.5 BK/BN 2752 Throttle Position Sensor Low Reference II LSY
24 0.5 YE/BU 2408 Engine Inlet Coolant Temperature Signal II LSY
25 0.5 VT 2988 Engine Outlet Coolant Temperature Signal II LSY
26 0.5 BN 7348 Intake Air Temperature Sensor 2 Signal II LSY
27 0.5 GN/YE 37 Engine Block Temperature Sensor Signal II LSY
28 0.5 BK/BN 6753 Camshaft Position Actuator Solenoid Valve W Low Reference II LSY
29 0.5 BK/VT 6754 Camshaft Position Actuator Solenoid Valve X Low Reference II LSY
30 0.5 YE 581 Throttle Actuator Open Control II LSY
31 0.5 BN/WH 582 Throttle Actuator Close Control II LSY
32 0.75 BU/BN 2977 Coolant Diverter Valve Actuator Control Close II LSY
33 0.5 VT/GY 496 Knock Sensor 1 Signal II LSY
34 0.5 WH/GY 1876 Knock Sensor 2 Signal II LSY
35 0.5 BK/GN 469 Manifold Absolute Pressure Sensor Low Reference II LSY
36 0.5 GN/BU 428 EVAP Canister Purge Solenoid Control II LSY
37 - 38 - - - Not Occupied - -
39 0.5 BK/GN 5301 Intake Camshaft Position Sensor Low Reference 1 II LSY
40 0.5 BK/GY 5296 Exhaust Camshaft Position Sensor Low Reference 1 II LSY
41 - - - Not Occupied - -
42 0.5 VT/BK 5273 Exhaust Camshaft Position Sensor 1 II LSY
43 0.5 GN 6271 Crankshaft Position Sensor Signal II LSY
44 0.75 YE/BU 2124 Ignition Control 4 II LSY
45 0.75 BU/WH 2122 Ignition Control 2 II LSY
46 0.75 BK/BU 2129 Ignition Control Low Reference Bank 1 II LSY
47 0.75 GY/WH 3122 HO2S Heater Low Control Bank 1 Sensor 2 II LSY
48 0.5 BU/WH 3630 Throttle Position Sensor SENT 1 Signal II LSY
49 0.75 BU/WH 4904 Direct Fuel Injector High Voltage Supply Cylinder 4 II LSY
50 0.75 GY/BU 4804 Direct Fuel Injector High Voltage Control Cylinder 4 II LSY
51 0.75 BU/GY 4902 Direct Fuel Injector High Voltage Supply Cylinder 2 II LSY
52 0.75 BU 4802 Direct Fuel Injector High Voltage Control Cylinder 2 II LSY
53 0.5 BK/YE 1716 Knock Sensor Low Reference 1 II LSY
54 0.5 BK/GY 2303 Knock Sensor Low Reference 2 II LSY
55 0.5 GY/RD 2704 Manifold Absolute Pressure Sensor 5V Reference II LSY
56 0.75 YE/BN 106 Oil Pump Motor Control II LSY
57 0.75 BU 179 Engine Oil Pump Control II LSY
58 - - - Not Occupied - -
59 0.5 GY/BU 5300 Intake Camshaft Position Sensor 1 Voltage Reference II LSY
60 0.5 GY/YE 5297 Exhaust Camshaft Position Sensor 1 Voltage Reference II LSY
61 0.5 GY 23 Generator Field Duty Cycle Signal II LSY
62 - - - Not Occupied - -
63 0.5 YE/VT 5275 Intake Camshaft Position Sensor 1 II LSY
64 0.75 BU/VT 2121 Ignition Control 1 II LSY
65 0.75 GN/BU 2123 Ignition Control 3 II LSY
66 - - - Not Occupied - -
67 0.75 VT/BK 7300 High Pressure Fuel Pump Low Control II LSY
68 0.75 YE 7301 High Pressure Fuel Pump High Control II LSY
69 0.75 BN/WH 4901 Direct Fuel Injector High Voltage Supply Cylinder 1 II LSY
70 0.75 BN 4801 Direct Fuel Injector High Voltage Control Cylinder 1 II LSY
71 0.75 GN/GY 4903 Direct Fuel Injector High Voltage Supply Cylinder 3 II LSY
72 0.75 GN 4803 Direct Fuel Injector High Voltage Control Cylinder 3 II LSY
73 2 VT/BU 5290 Powertrain Main Relay Fused Supply Voltage 1 I LSY
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