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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Component Connector End Views (E37LR-K20 (X3))) >> Component Connector End Views >> K20 Engine Control Module X1 (LGX)
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K20 Engine Control Module X1 (LGX)

WARNING: This page is about a different car, the 2020 Cadillac XT5. However, it is still accessible from the selected car via links, so may be relevant.
GM2470482Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34566-0303
  • Service Connector: 13574782
  • Description: 73-Way F 0.64, 2.8 Series, Sealed (BK 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 13579770 J-35616-35 (VT) J-38125-11A 7116-4152-02 Yazaki 9 A 5
II 19354746 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 - 3 - - - Not Occupied - -
4 0.5 WH 4499 High Speed GMLAN Serial Data [-] 7 II LGX
5 0.5 BK/PU 1272 Accelerator Pedal Position Low Reference 2 II LGX
6 0.5 YE/WH 1161 Accelerator Pedal Position Signal 1 II LGX
7 0.5 BK/BU 1271 Accelerator Pedal Position Low Reference 1 II LGX
8 0.5 WH 7494 High Speed GMLAN Serial Data [-] 3 II LGX
9 0.5 BK/YE 5382 Brake Position Sensor Low Reference II LGX
10 - 11 - - - Not Occupied - -
12 0.5 WH 2501 High Speed GMLAN Serial Data [-] 1 II LGX
13 0.5 WH/BU 6311 Cruise/ETC/TCC Brake Signal II LGX
14 0.5 WH/GY 459 A/C Compressor Clutch Relay Control II LXG
15 0.5 YE 5991 Powertrain Relay Coil Control II LGX
16 0.5 BN/WH 419 Check Engine Indicator Control II LGX
17 - 19 - - - Not Occupied - -
20 0.5 BU/BN 4498 High Speed GMLAN Serial Data [+] 7 II LGX
21 0.5 BN/RD 1274 Accelerator Pedal Position 5V Reference 2 II LGX
22 0.5 GN/WH 1162 Accelerator Pedal Position Signal 2 II LGX
23 0.5 WH/RD 1164 Accelerator Pedal Position 5 Volt Reference 1 II LGX
24 0.5 BU/BK 7493 High Speed GMLAN Serial Data [+] 3 II LGX
25 0.5 WH/RD 5381 Brake Position Sensor 5V Reference II LGX
26 0.5 WH/GN 5380 Brake Position Sensor Signal II LGX
27 - - - Not Occupied - -
28 0.5 BU 2500 High Speed GMLAN Serial Data [+] 1 II LGX
29 - - - Not Occupied - -
30 0.5 GN/WH 492 Mass Air Flow Sensor Signal II LGX
31 0.5 YE/BK 625 Starter Enable Relay Control II KL9+LGX
32 - 33 - - - Not Occupied - -
34 0.5 GY 5127 Turbocharger Coolant Pump Relay Control II KL9+LGX
35 - 38 - - - Not Occupied - -
39 0.5 GY/BU 7564 Humidity Sensor Signal 2 II LGX
40 - 43 - - - Not Occupied - -
44 0.5 BK/WH 2151 Ground 21 II LGX
45 0.5 YE/RD 6031 Brake Vacuum Sensor 5V Reference II LGX
46 0.5 GY 4109 Driver Mode Switch 5V Reference II LGX+URC
47 0.5 BN/RD 2700 A/C Pressure Sensor 5V Reference II LGX
48 - - - Not Occupied - -
49 0.5 PU/BU 5292 Powertrain Main Relay Fused Supply 3 II LGX
50 0.5 PU/BU 5291 Powertrain Main Relay Fused Supply 2 II LGX
51 0.5 PU/YE 5985 Accessory Wake-Up Serial Data II LGX
52 0.5 RD/WH 140 Secondary Fused Battery Positive Voltage 1 II LGX
53 - 55 - - - Not Occupied - -
56 0.5 YE 4063 Hood Status A Signal II LGX
57 - 63 - - - Not Occupied - -
64 0.5 BU/GY 636 Ambient Air Temperature Sensor Signal II LGX
65 0.5 YE/PU 6030 Brake Vacuum Sensor Signal II LGX
66 0.5 WH/PU 4108 Driver Mode Switch Signal II LGX+URC
67 0.5 GN 380 A/C Refrigerant Pressure Sensor Signal II LGX
68 - - - Not Occupied - -
69 0.5 GN/GY 465 Fuel Pump Primary Relay Control II LGX
70 0.5 YE/PU 4325 Starter Pinion Solenoid Actuator Relay Control II KL9+LGX
71 0.5 PU/GY 139 Run/Crank Ignition 1 Voltage 1 II LGX
72 0.5 PU/BU 5291 Powertrain Main Relay Fused Supply 2 II LGX
73 2.5 PU/BU 5290 Powertrain Main Relay Fused Supply 1 I LGX
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