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K20 Engine Control Module X2 (LV1)

WARNING: This page is about a different car, the 2023 GMC Savana 3500, 2023 GMC Savana 2500, 2023 Chevrolet Express 3500, and 2023 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
GM1673472Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine Wiring Harness
  • OEM Connector: 35386331
  • Service Connector: 19333090
  • 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
I 19354746 J-35616-64B (L-BU) J-38125-215A
II Not Available J-35616-35 (VT) J-38125-11A
Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 GN/YE 3212 HO2S Heater Low Control Bank 2 Sensor 1 I -
2 - - - Not Occupied - -
3 0.5 BK/YE 548 Engine Control Sensors Low Reference 1 I -
4 - 6 - - - Not Occupied - -
7 0.5 GN/WH 4622 Engine Control Module LIN Bus 2 I -
8 - 9 - - - Not Occupied - -
10 0.5 VT/GY 3110 HO2S High Signal Bank 1 Sensor 1 I -
11 0.5 WH/BK 3111 HO2S Low Signal Bank 1 Sensor 1 I -
12 - - - Not Occupied - -
13 0.5 GN/BU 2123 Ignition Control 3 I -
14 - 15 - - - Not Occupied - -
16 0.75 VT/BU 5291 Powertrain Main Relay Fused Supply Voltage 2 I -
17 0.5 GY/WH 3113 HO2S Heater Low Control Bank 1 Sensor 1 I -
18 - 25 - - - Not Occupied - -
26 0.5 VT/WH 3210 HO2S High Signal Bank 2 Sensor 1 I -
27 0.5 YE/WH 3211 HO2S Low Signal Bank 2 Sensor 1 I -
28 - - - Not Occupied - -
29 0.5 BU/WH 2122 Ignition Control 2 I -
30 0.5 BK/GY 2130 Ignition Control Low Reference Bank 2 I -
31 - 32 - - - Not Occupied - -
33 0.5 WH/BN 3223 HO2S Heater Low Control Bank 2 Sensor 2 I -
34 - 36 - - - Not Occupied - -
37 0.5 VT/BU 5293 Powertrain Main Relay Fused Supply Voltage 4 I -
38 - - - Not Occupied - -
39 0.5 WH/RD 480 Engine Control Vehicle Sensors 5 Volt Reference 1 I -
40 - 45 - - - Not Occupied - -
46 0.5 YE/BU 3221 HO2S Low Signal Bank 2 Sensor 2 I -
47 0.5 VT/GN 3220 HO2S High Signal Bank 2 Sensor 2 I -
48 - 49 - - - Not Occupied - -
50 0.75 BK/GY 2303 Knock Sensor Low Reference 2 I -
51 0.75 BK/YE 1716 Knock Sensor Low Reference 1 I -
52 0.5 BN/WH 582 Throttle Actuator Close Control I -
53 0.5 GY/WH 3122 HO2S Heater Low Control Bank 1 Sensor 2 I -
54 - 58 - - - Not Occupied - -
59 0.5 BU/RD 460 Engine Control Sensors 5 Volt Reference 1 I -
60 - 65 - - - Not Occupied - -
66 0.5 WH/YE 3121 HO2S Low Signal Bank 1 Sensor 2 I -
67 0.5 VT/BU 3120 HO2S High Signal Bank 1 Sensor 2 I -
68 - 69 - - - Not Occupied - -
70 0.75 WH/GY 1876 Knock Sensor 2 Signal I -
71 0.75 VT/GY 496 Knock Sensor 1 Signal I -
72 0.5 YE 581 Throttle Actuator Open Control I -
73 3 BK/WH 1551 Signal Ground II -
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