LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Component Connector End Views (K9 - K29F)) >> Component Connector End Views >> K20 Engine Control Module X3 (LYX)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

K20 Engine Control Module X3 (LYX)

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
GM1590596
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 12582678
  • 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 13579770 J-35616-4A (PU) J-38125-11A 7116-4152-02 Yazaki 9 2 5
II 19330179 J-35616-64B (LT BU) J-38125-12A Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1 - 3 - - - Not Occupied - -
4 0.5 GN/BU 428 EVAP Canister Purge Solenoid Control II LYX
5 - - - Not Occupied - -
6 0.5 BN/RD 2917 Fuel Rail Pressure Sensor 5V Reference II LYX
7 - - - Not Occupied - -
8 0.35 YE/RD 2709 Fuel Tank Pressure Sensor 5V Reference II LYX+NTB/NUB
9 - 13 - - - Not Occupied - -
14 0.5 WH/RD 3201 Throttle Inlet Absolute Pressure Sensor 5V Reference II LYX
15 0.35 YE/RD 6031 Brake Vacuum Sensor 5V Reference II KL9+LYX
16 0.5 VT/BU 5294 Powertrain Main Relay Fused Supply 5 II LYX
17 0.5 WH/GY 4578 Surge Accumulator Solenoid Low Side Control II KL9+LYX-M3D-M3H-M3U
18 0.5 BN 25 Charge Indicator Control II LYX
19 0.5 GY 23 Generator Field Duty Cycle Signal II LYX
20 0.5 BK/GN 580 Engine Control Sensors Low Reference (2) II LYX
21 0.5 BU/WH 2918 Fuel Rail Pressure Sensor Signal II LYX
22 0.5 BK/GN 2919 Fuel Rail Pressure Sensor Low Reference II LYX
23 - 29 - - - Not Occupied - -
30 0.5 WH/YE 3202 Throttle Inlet Absolute Pressure Sensor Low Reference II LYX
31 - 32 - - - Not Occupied - -
33 0.5 YE/GN 4321 Park Phaser Lock Control II LYX
34 - 39 - - - Not Occupied - -
40 0.5 VT/BU 7330 Pre Throttle Air Temp and Press (TMAP) Air Pressure Signal II LYX
41 - 42 - - - Not Occupied - -
43 0.35 BU/VT 1589 Primary Fuel Level Sensor Signal II LYX
44 0.35 BU/WH 1937 Secondary Fuel Level Sensor Signal II F48+LYX
45 - - - Not Occupied - -
46 0.5 YE/WH 3200 Throttle Inlet Absolute Pressure Sensor Signal II LYX
47 0.5 WH/BU 7329 Pre-Throttle Air Temp and Press (TMAP) Temperature Signal II LYX
48 0.5 YE 3054 Turbo Intake Pressure Sensor Signal Bank 1 II LYX
49 - 51 - - - Not Occupied - -
52 0.5 VT/BK 7300 High Pressure Fuel Pump Actuator Low - Control II LYX
53 - 54 - - - Not Occupied - -
55 0.35 GN/VT 4621 Local Interconnect Network Serial Data Bus 21 II -
56 - 58 - - - Not Occupied - -
59 0.5 BK/GY 2303 Knock Sensor Low Reference 2 II LYX
60 0.5 WH/GY 1876 Knock Sensor Signal 2 II LYX
61 0.5 BK/YE 1716 Knock Sensor Low Reference 1 II LYX
62 0.5 VT/GY 496 Knock Sensor Signal 1 II LYX
63 - 67 - - - Not Occupied - -
68 0.35 BU/WH 890 Fuel Tank Pressure Sensor Signal II LYX+NTB/NUB
69 - 71 - - - Not Occupied - -
72 0.5 YE 7301 High Pressure Fuel Pump Actuator High - Control II LYX
73 2 BK/WH 151 Signal Ground I LYX