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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Component Connector End Views (K17-K71 (LV1))) >> Component Connector End Views >> K20 Engine Control Module X1 (LWN)

K20 Engine Control Module X1 (LWN)

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
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 Service Terminal Tray Name Core Crimp Insulation Crimp
I 13579752 J-35616-4A (PU) J-38125-215A Not Available Not Available Not Available Not Available
II 13584448 J-35616-64B (LT BU) J-38125-215A 1719532-5 Lear 7 J J
III 13584530 J-35616-4A (PU) J-38125-215A 4-964273-1 Yazaki 15 C 5
IV 19369848 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 2.5 VT/GY 1439 Run/Crank Ignition 1 Voltage III -
2 0.5 VT/D-BU 5291 Powertrain Main Relay Fused Supply 2 I -
3 0.5 VT/D-BU 5292 Powertrain Main Relay Fused Supply 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 Wakeup 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 L-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 Control Relay Speed Signal II -
18 0.5 BN/WH 419 Check Engine Indicator Control II -
19 0.5 L-GN/BN 507 Wait To Start Indicator Control II -
20 - - - Not Occupied - -
21 0.5 YE 2928 Fuel Metering Valve High Control II -
22 0.5 VT/L-GN 439 Run/Crank Ignition 1 Voltage II -
23 0.5 WH/D-BU 6311 Cruise/ETC/TCC Brake Signal II -
24 0.5 WH/GY 1786 Transmission Park/Neutral Signal 1 II -
25 0.5 L-GN/WH 492 Mass Air Flow Sensor Signal II -
26 0.5 BU/VT 2364 Cooling Fan Speed Signal II -
27 0.5 BK/D-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 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/D-BU 6289 Induction Air Temperature Sensor Signal II -
46 0.5 BN/RD 2700 A/C Pressure Sensor 5V Reference II -
47 0.5 L-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 L-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 D-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 D-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 Hydrocarbon Injector Low Control II -
65 - - - Not Occupied - -
66 0.5 YE/BK 625 Starter Enable Relay Control II -
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