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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 790 (Component Connector End Views (K9 (X3)-K20)) >> Component Connector End Views (K9 (X3)-K20) >> K20 Engine Control Module X3 (L5P)

K20 Engine Control Module X3 (L5P)

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
GM2474736Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine Wiring Harness
  • OEM Connector: 35386296
  • Service Connector: 13577545
  • Description: 80-Way F MX123 Series, Sealed (BK with BU 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
Pin Size Color Circuit Function Terminal Type ID Option
1 0.75 BN 3099 Diesel Exhaust Fluid Dosing Valve High Control I -
2 - - - Not Occupied - -
3 0.5 GN/BU 3889 Powertrain Sensor Bus Relay Control I -
4 - 11 - - - Not Occupied - -
12 0.5 YE/BK 3682 Charge Air Cooler Inlet Temperature Sensor Low Reference I -
13 0.5 YE/BU 3680 Charge Air Cooler Outlet Temperature Sensor Low Reference I -
14 0.5 BK/YE 6275 Exhaust Gas Recirculation Temperature Sensor 2 Low Reference I -
15 0.5 BK/BU 6274 Exhaust Gas Recirculation Temperature Sensor Low Reference I -
16 0.5 BK/VT 3661 Exhaust Gas Temperature Sensor 5 Low Reference I -
17 0.5 BK/GY 3659 Exhaust Gas Temperature Sensor 4 Low Reference I -
18 0.5 BK/GN 3657 Exhaust Gas Temperature Sensor 3 Low Reference I -
19 0.5 BK/BU 6783 Exhaust Gas Temperature Sensor 2 Low Reference I -
20 0.5 BK/BN 6782 Exhaust Gas Temperature Sensor 1 Low Reference I -
21 0.75 BN/WH 3100 Diesel Exhaust Fluid Dosing Valve Low Control I -
22 0.5 YE/BU 1465 Secondary Fuel Pump Relay Control I -
23 - 24 - - - Not Occupied - -
25 0.5 WH/GN 6142 Power Take-Off Engine Shutdown Signal I -
26 - 27 - - - Not Occupied - -
28 0.5 WH/RD 3201 Throttle Inlet Absolute Pressure Sensor 5V Reference I -
29 0.5 YE/WH 3200 Throttle Inlet Absolute Pressure Sensor Signal I -
30 - 31 - - - Not Occupied - -
32 0.5 GN 3683 Charge Air Cooler Inlet Temperature Sensor Signal I -
33 0.5 BN 3681 Charge Air Cooler Outlet Temperature Sensor Signal I -
34 0.5 YE/GN 3236 Exhaust Gas Recirculation Temperature Sensor 2 Signal I -
35 0.5 WH/BN 3237 Exhaust Gas Recirculation Temperature Sensor Signal I -
36 0.5 BU/GY 3660 Exhaust Gas Temperature Sensor 5 Signal I -
37 0.5 VT/BN 3658 Exhaust Gas Temperature Sensor 4 Signal I -
38 0.5 GY/GN 5378 Exhaust Gas Temperature Sensor 3 Signal I -
39 0.5 BU/GN 5377 Exhaust Gas Temperature Sensor 2 Signal I -
40 0.5 BU/WH 5277 Exhaust Gas Temperature Sensor 1 Signal I -
41 - 44 - - - Not Occupied - -
45 0.5 BK/GY 3927 Transmission Internal Mode Switch Feedback Signal I -
46 - - - Not Occupied - -
47 0.5 YE/BU 3992 Internal Mode Switch Voltage Supply A I -
48 - 54 - - - Not Occupied - -
55 0.5 WH/BU 5726 Ignition Mode Switch Mode Control Backup I -
56 - 64 - - - Not Occupied - -
65 0.5 BK/BN 6141 Cooling Fan Speed Sensor Low Reference I -
66 0.5 BU/VT 2364 Cooling Fan Speed Signal I -
67 0.5 GY/RD 2365 Cooling Fan Speed Sensor 5V Reference I -
68 - 75 - - - Not Occupied - -
76 0.5 BK/YE 6055 Exhaust Pressure Sensor 1 Low Reference I -
77 0.5 BU 6053 Exhaust Pressure Sensor 1 Signal I -
78 0.5 WH/RD 6054 Exhaust Pressure Sensor 1 5V Reference I -
79 - 80 - - - Not Occupied - -
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