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HOMESERVICE MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 3 (COMPONENT CONNECTOR END VIEWS - K20 X3 LGZ TO K109)COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X3 (LGZ)
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol

K20 Engine Control Module X3 (LGZ)

2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION K20 Engine Control Module X3 (LGZ)
WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
GM1590596
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34566-0203
  • Service Connector: 88988372
  • Description: 73-Way F 0.64, 2.8 Series, Sealed (BK with GY 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 13576392 J-35616-4A (PU) J-38125-11A 7116-4152-02 Yazaki 9 A 5
II 19301532 J-35616-64B (LT BU) J-38125-213 Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 GN 5492 Cylinder Shutoff Solenoid Control 2 II -
2 0.5 BU 5491 Cylinder Shutoff Solenoid Control 1 II -
3 0.5 L-GN/BN 5298 Camshaft Position Exhaust Sensor Control 2 II -
4 0.5 YE 5276 Camshaft Position Intake Sensor 2 II -
5 0.5 WH/L-BU 5302 Camshaft Position Intake Sensor Control 2 II -
6 0.5 VT/L-BU 6270 Crankshaft 60X Sensor 5V Reference II -
7 0.5 L-GN 6271 Crankshaft 60X Sensor Signal II -
8 0.5 BN/RD 2701 Throttle Position Sensor 5V Reference II -
9 - 11 - - - Not Occupied - -
12 0.5 BN/L-BU 2126 Ignition Control 6 II -
13 0.5 L-BU/GY 2125 Ignition Control 5 II -
14 0.5 YE/L-BU 2124 Ignition Control 4 II -
15 0.5 BK/GY 2130 Ignition Control Low Reference Bank 2 II -
16 0.5 YE 7301 High Pressure Fuel Pump Actuator High - Control II -
17 0.5 GY/GN 587 Skip/Shift Solenoid Control II LGZ
18 0.5 YE/GN 4321 Park Phaser Lock Control I LGZ
19 0.5 BK/BN 5299 Camshaft Position Exhaust Sensor Low Reference 2 II -
20 0.5 VT/L-BU 5274 Camshaft Position Exhaust Sensor 2 II -
21 0.5 BK/VT 5303 Camshaft Position Intake Sensor Low Reference 2 II -
22 0.5 BK/VT 6272 Crankshaft 60X Sensor Low Reference II -
23 0.5 L-BU/WH 3630 Throttle Position Sensor (SENT1) Signal II -
24 0.5 BK/BN 2752 Throttle Position Sensor Low Reference II -
25 - - - Not Occupied - -
26 0.5 L-BU/WH 225 Generator Turn On Signal II -
27 - - - Not Occupied - -
28 0.5 L-GN/L-BU 2123 Ignition Control 3 II -
29 0.5 L-BU/WH 2122 Ignition Control 2 II -
30 0.5 L-BU/VT 2121 Ignition Control 1 II -
31 0.5 BK/L-BU 2129 Ignition Control Low Reference Bank 1 II -
32 0.5 VT/BK 7300 High Pressure Fuel Pump Actuator Low - Control II -
33 0.5 L-GN/L-BU 428 EVAP Canister Purge Solenoid Control II -
34 0.5 BU 179 Oil Pump Command Signal II -
35 0.5 GY/YE 5297 Camshaft Position Exhaust Sensor Control 1 II -
36 0.5 VT/BK 5273 Camshaft Position Exhaust Sensor 1 II -
37 0.5 BK/GY 5296 Camshaft Position Exhaust Sensor Low Reference 1 II -
38 0.5 L-BU 410 Engine Coolant Temperature Sensor Signal II -
39 0.5 BN/RD 7445 Fuel Line Pressure Sensor 5V Reference II -
40 0.5 BN/RD 2917 Fuel Rail Pressure Sensor 5V Reference II -
41 0.5 BK/L-GN 2919 Fuel Rail Pressure Sensor Low Reference II -
42 - - - Not Occupied - -
43 0.5 BK/L-BU 6755 Cam Phaser Y Low Reference II -
44 0.5 L-GN 5272 Camshaft Phaser Intake Solenoid 2 II -
45 0.5 VT/BN 5284 Camshaft Phaser Intake Solenoid 1 II -
46 0.5 BK/BN 6753 Cam Phaser W Low Reference II -
47 0.75 WH/L-GN 4805 Direct Fuel Injector (DFI) High Voltage Control Cylinder 5 II -
48 0.75 L-BU 4802 Direct Fuel Injector (DFI) High Voltage Control Cylinder 2 II -
49 0.75 BN 4801 Direct Fuel Injector (DFI) High Voltage Control Cylinder 1 II -
50 0.75 GY/L-BU 4804 Direct Fuel Injector (DFI) High Voltage Control Cylinder 4 II -
51 0.75 VT/L-GN 4806 Direct Fuel Injector (DFI) High Voltage Control Cylinder 6 II -
52 0.75 GN 4803 Direct Fuel Injector (DFI) High Voltage Control Cylinder 3 II -
53 - 54 - - - Not Occupied - -
55 0.5 GY/L-BU 5300 Camshaft Position Intake Sensor Control 1 II -
56 0.5 YE/VT 5275 Camshaft Position Intake Sensor 1 II -
57 0.5 BK/L-GN 5301 Camshaft Position Intake Sensor Low Reference 1 II -
58 - - - Not Occupied - -
59 0.5 L-BU/WH 7446 Fuel Line Pressure Sensor Signal II -
60 0.5 BU/WH 2918 Fuel Rail Pressure Sensor Signal II -
61 0.5 GY 23 Generator Field Duty Cycle Signal II -
62 - - - Not Occupied - -
63 0.5 BK/GY 6756 Cam Phaser Z Low Reference II -
64 0.5 L-GN/BN 5283 Camshaft Phaser Exhaust Solenoid 2 II -
65 0.5 GY/L-BU 5282 Camshaft Phaser Exhaust Solenoid 1 II -
66 0.5 BK/VT 6754 Cam Phaser X Low Reference II -
67 0.75 L-GN/WH 4905 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 5 II -
68 0.75 L-BU/GY 4902 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 2 II -
69 0.75 BN/WH 4901 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 1 II -
70 0.75 L-BU/WH 4904 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 4 II -
71 0.75 VT/GY 4906 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 6 II -
72 0.75 L-GN/GY 4903 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3 II -
73 2.5 BK/WH 151 Signal Ground I -
RENDER: 1.0x

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  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.