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Home >> GMC >> 2021 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 74 (Component Connector End Views (K20 (X3)-K33 (X4))) >> Component Connector End Views >> K20 Engine Control Module X3 (LH7)

K20 Engine Control Module X3 (LH7)

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
GM784851Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34576-0703
  • Service Connector: 88988373
  • Description: 56-Way F 0.64 Series, Sealed (BU with BU Terminal Position Assurance)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Name Core Crimp Insulation Crimp
I 19330179 J-35616-64B (LT BU) J-38125-215A Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 BN/WH 3100 Diesel Exhaust Fluid Dosing Valve Low Control I -
2 - 5 - - - Not Occupied - -
6 0.5 YE/WH 3200 Throttle Inlet Absolute Pressure Sensor Signal I -
7 0.5 WH/RD 3201 Throttle Inlet Absolute Pressure Sensor 5V Reference I -
8 0.5 BK/GN 580 Engine Control Sensors Low Reference 2 I -
9 - - - Not Occupied - -
10 0.5 BK/BU 6274 Exhaust Gas Recirculation Temperature Sensor Low Reference I -
11 - - - Not Occupied - -
12 0.5 BK/GN 3657 Exhaust Gas Temperature Sensor 3 Low Reference I -
13 0.5 BK/BU 6783 Exhaust Gas Temperature Sensor 2 Low Reference I -
14 0.5 BU/WH 5277 Exhaust Gas Temperature Sensor 1 Signal I -
15 0.5 BN 3099 Diesel Exhaust Fluid Dosing Valve High Control I -
16 0.5 GY/WH 3113 HO2S Heater Low Control Bank 1 Sensor 1 I -
17 - 18 - - - Not Occupied - -
19 0.5 BK/YE 6275 Exhaust Gas Recirculation Temperature Sensor 2 Low Reference I -
20 0.5 YE/GN 3236 Exhaust Gas Recirculation Temperature Sensor 2 Signal I -
21 - - - Not Occupied - -
22 0.5 BU/GY 636 Ambient Air Temperature Sensor Signal I -
23 - - - Not Occupied - -
24 0.5 WH/BN 3237 Exhaust Gas Recirculation Temperature Sensor Signal I -
25 - - - Not Occupied - -
26 0.5 GY/GN 5378 Exhaust Gas Temperature Sensor 3 Signal I -
27 0.5 BK/BN 6782 Exhaust Gas Temperature Sensor 1 Low Reference I -
28 0.5 BU/GN 5377 Exhaust Gas Temperature Sensor 2 Signal I -
29 - - - Not Occupied - -
30 0.5 YE/BU 1497 Positive Crankcase Ventilation Heater Control I -
31 - - - Not Occupied - -
32 0.5 BN/GY 4008 Humidity Sensor Signal I -
33 0.5 BK/YE 6032 Brake Vacuum Sensor Low Reference I -
34 0.5 YE/VT 6030 Brake Vacuum Sensor Signal I -
35 0.5 YE/RD 6031 Brake Vacuum Sensor 5V Reference I -
36 0.5 GY 4109 Driver Mode Switch 5V Reference I -
37 0.5 WH/VT 4108 Driver Mode Switch Signal I -
38 - 40 - - - Not Occupied - -
41 0.5 YE/GY 6936 HO2S Signal I -
42 0.5 BN 6934 HO2S Ground I -
43 0.5 GN/BU 3889 Powertrain Sensor Bus Relay Control I -
44 0.5 VT/BU 6091 Crankshaft Position Sensor Replicated Signal I -
45 0.5 BU 3017 Fuel Heater Relay 1 Control I -
46 0.5 GY/VT 7368 Intake Manifold Runner Valve Actuator Position Signal I -
47 - 49 - - - Not Occupied - -
50 0.5 WH/RD 6054 Exhaust Pressure Sensor 1 5V Reference I -
51 0.5 BU 6053 Exhaust Pressure Sensor 1 Signal I -
52 0.5 BK/YE 6055 Exhaust Pressure Sensor 1 Low Reference I -
53 - 54 - - - Not Occupied - -
55 0.5 BN/WH 6933 HO2S Pump Current Signal I -
56 0.5 GN 6935 HO2S Pump Current Trim Signal I -
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