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Home >> Chevrolet >> 2021 >> Express 2500 Base, Van Cargo Extended, 2.8L Eng VIN 1 >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> Component Connector End Views (K18-K64) >> Component Connector End Views >> K20 Engine Control Module X1 (LWN)

K20 Engine Control Module X1 (LWN)

GM2498868Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 35059716
  • Service Connector: 19370822
  • Description: 66 - Way F 0.64 MTS-B, 2.8 ATS, 6.3 Ducon Series, Sealed (BK)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I 13579752 J-35616-4A (PU) J-38125-215A
II 13584448 J-35616-64B (LT BU) J-38125-215A
III 13584530 J-35616-4A (PU) J-38125-215A
IV 19369848 J-35616-64B (LT BU) J-38125-215A
Pin Size Color Circuit Function Terminal Type ID Option
1 2.5 VT/GY 1439 Run/Crank Ignition 1 Voltage III -
2 0.5 VT/BU 5291 Powertrain Main Relay Fused Supply Voltage 2 I -
3 0.5 VT/BU 5292 Powertrain Main Relay Fused Supply Voltage 3 I -
4 0.5 RD/BN 440 Battery Positive Voltage I -
5 6 RD/YE 2 Battery Positive Voltage IV -
6 6 BK/WH 451 Signal Ground IV -
7 0.5 VT/YE 5985 Accessory Wake-Up Serial Data II -
8 - 10 - - - Not Occupied - -
11 0.5 BU/YE 6861 Water In Fuel Sensor Signal II -
12 - - - Not Occupied - -
13 0.5 WH/RD 1164 Accelerator Pedal Position 5V Reference 1 II -
14 0.5 BN/RD 1274 Accelerator Pedal Position 5V Reference 2 II -
15 0.5 GN/WH 1162 Accelerator Pedal Position Signal 2 II -
16 0.5 BK/VT 1272 Accelerator Pedal Position Low Reference 2 II -
17 0.5 WH/BK 2366 Cooling Fan Speed Control Signal II -
18 0.5 BN/WH 419 Check Engine Indicator Control II -
19 0.5 GN/BN 507 Wait To Start Indicator Control II -
20 - - - Not Occupied - -
21 0.5 YE 2928 Fuel Metering Solenoid Valve High Control II -
22 0.5 VT/GN 439 Run/Crank Ignition 1 Voltage II -
23 0.5 WH/BU 6311 Cruise/ETC/TCC Brake Signal II -
24 - - - Not Occupied - -
25 0.5 GN/WH 492 Mass Air Flow Sensor Signal II -
26 0.5 BU/VT 2364 Cooling Fan Speed Signal II -
27 0.5 BK/BU 1271 Accelerator Pedal Position Low Reference 1 II -
28 0.5 YE/WH 1161 Accelerator Pedal Position Signal 1 II -
29 - 32 - - - Not Occupied - -
33 0.5 WH/GY 459 A/C Compressor Clutch Relay Control II -
34 - 35 - - - Not Occupied - -
36 0.5 BN/BK 2929 Fuel Metering Solenoid Valve Low Control II -
37 - 38 - - - Not Occupied - -
39 0.5 WH 7494 High Speed GMLAN Serial Data [-] 3 II -
40 0.5 WH 2501 High Speed GMLAN Serial Data [-] 1 II -
41 - 42 - - - Not Occupied - -
43 0.5 BK/BN 5360 Brake Apply Sensor Low Reference II -
44 0.5 WH 5359 Brake Apply Sensor Control II -
45 0.5 WH/BU 6289 Intake Air Temperature Sensor Signal II -
46 0.5 BN/RD 2700 A/C Pressure Sensor 5V Reference II -
47 0.5 GN 380 A/C Refrigerant Pressure Sensor Signal II -
48 0.5 BK/BN 5514 A/C Refrigerant Pressure Sensor Low Reference II -
49 - - - Not Occupied - -
50 0.5 GN/GY 465 Fuel Pump Primary Relay Control II -
51 0.5 YE 5991 Powertrain Relay Coil Control II -
52 - 53 - - - Not Occupied - -
54 0.5 BU/BK 7493 High Speed GMLAN Serial Data [+] 3 II -
55 0.5 BU 2500 High Speed GMLAN Serial Data [+] 1 II -
56 - 58 - - - Not Occupied - -
59 0.5 BU/YE 5361 Brake Apply Sensor Signal II -
60 0.5 BK/VT 2760 Intake Air Temperature Sensor Low Reference II -
61 - 63 - - - Not Occupied - -
64 0.75 VT/BN 2927 Exhaust Aftertreatment Fuel Injector Low Control II -
65 - - - Not Occupied - -
66 0.5 YE/BK 625 Starter Enable Relay Control II -
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