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K20 Engine Control Module X2

GM1673472Courtesy of GENERAL MOTORS CORP.
Connector Part Information 
  • Harness Type: Engine
  • OEM Connector: 34566-0103
  • Service Connector: 88988931
  • Description: 73-Way F MX123 34566 Series (BK with BK Terminal Position Assurance Lock)
 Terminal Part Information 
  • Pins: 1-5, 10, 11, 14-17, 20, 21, 24, 28-31, 33, 35-37, 40, 43, 44, 47, 49, 53, 56, 57, 60, 63, 65, 67, 69, 72
  • Terminated Lead: 13575575
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: Pins 28, 31 - K/K
  • Core/Insulation Crimp: Pins 1-5, 10, 11, 14-17, 20, 21, 24, 29, 30, 33, 35-37, 40, 43, 44, 47, 49, 53, 56, 57, 60, 63, 65, 67, 69, 72 - J/J
  • Pins: 73
  • Terminated Lead: 13576392
  • Release Tool: J-38125-11A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: 2/5
K20 Engine Control Module X2

Pin Size Color Circuit Function Option
1 0.5 VT/L-BU 2121 Ignition Control (1) -
2 0.5 BN/VT 1744 Fuel Injector Control (1) -
3 0.5 BN/VT 1746 Fuel Injector Control (3) -
4 0.5 BN/YE 844 Fuel Injector Control (4) -
5 0.5 YE/WH 1745 Fuel Injector Control (2) -
6-9 - - - Not Used -
10 0.5 GY/L-BU 5282 Camshaft Phaser Exhaust Solenoid (1) -
11 0.5 VT/BN 5284 Camshaft Phaser Intake Solenoid (1) -
12-13 - - - Not Used -
14 0.5 L-BU 6814 Thermostat Engine Cool Control -
15 0.5 YE 581 Throttle Actuator Control Open -
16 0.5 BN/WH 582 Throttle Actuator Control Close -
17 0.5 L-GN/L-BU 2123 Ignition Control (3) -
18-19 - - - Not Used -
20 0.5 BK/VT 6272 Low Reference -
21 0.5 BK/GY 5296 Low Reference -
22-23 - - - Not Used -
24 0.5 BK/L-GN 5301 Low Reference -
25-27 - - - Not Used -
28 0.75 VT/L-BU 5290 Powertrain Main Relay Fused Supply (1) -
29 0.5 BK/BN 6753 Low Reference -
30 0.5 BK/VT 6754 Low Reference -
31 0.75 YE/L-BU 231 Oil Pressure Switch Signal -
32 - - - Not Used -
33 0.5 YE/L-BU 2124 Ignition Control (4) -
34 - - - Not Used -
35 0.5 BK/GY 453 Low Reference -
36 0.5 VT/L-BU 6270 Crankshaft 60X Sensor Voltage -
37 0.5 GY/YE 5297 Camshaft Position Exhaust Sensor Supply Voltage (1) -
38-39 - - - Not Used -
40 0.5 GY/L-BU 5300 Camshaft Position Intake Sensor Supply Voltage (1) -
41-42 - - - Not Used -
43 0.5 BN/RD 2701 5 Volt Reference -
44 0.5 BK/BN 2752 Low Reference -
45-46 - - - Not Used -
47 0.5 VT/GY 3110 Heated Oxygen Sensor High Signal Bank 1 Sensor (1) -
48 - - - Not Used -
49 0.5 BK/YE 1716 Low Reference -
50-52 - - - Not Used -
53 0.5 L-BU/WH 2122 Ignition Control (2) -
54-55 - - - Not Used -
56 0.5 L-GN 6271 Crankshaft 60X Sensor Signal -
57 0.5 VT/BK 5273 Camshaft Position Exhaust Sensor (1) -
56-59 - - - Not Used -
60 0.5 YE/VT 5275 Camshaft Position Intake Sensor (1) -
61-62 - - - Not Used -
63 0.5 BN/L-GN 485 Throttle Position Sensor Signal (1) -
64 - - - Not Used -
65 0.5 BN/L-BU 486 Throttle Position Sensor Signal (2) -
66 - - - Not Used -
67 0.5 WH/BK 3111 Heated Oxygen Sensor Low Signal Bank 1 Sensor (1) -
68 - - - Not Used -
69 0.5 VT/GY 496 Knock Sensor Signal (1) -
70-71 - - - Not Used -
72 0.5 GY/WH 3113 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (1) -
73 2 BK 250 Ground -
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