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Home >> GMC >> 2021 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 74 (Component Connector End Views (K20 (X3)-K33 (X4))) >> Component Connector End Views >> K20 Engine Control Module X1 (LYX-NTM)

K20 Engine Control Module X1 (LYX-NTM)

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
GM4596458Courtesy 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 2 5
II 19330179 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 0.5 GN/WH 492 Mass Air Flow Sensor Signal II -
2 0.5 WH/BU 6289 Intake Air Temperature Sensor Signal II -
3 0.5 WH 4499 High Speed GMLAN Serial Data [-] 7 II (LTG/LYX)+NUG
4 0.5 WH 2501 High Speed GMLAN Serial Data [-] 1 II LYX+M3U
5 0.5
0.5
WH
WH
7494
7494
High Speed GMLAN Serial Data [-] 3
High Speed GMLAN Serial Data [-] 3
II
II
(LTG/LYX)+(NUG)-EPH
EPH+LYX+NUG
6 0.5 WH/BU 6311 Cruise/ETC/TCC Brake Signal II -
7 0.5 WH 2501 High Speed GMLAN Serial Data [-] 1 II (LYX+NUG)-M3U
8 0.5 BN/WH 419 Check Engine Indicator Control II -
9 0.5 YE 5991 Powertrain Relay Coil Control II -
10 - - - Not Occupied - -
11 0.5 BU 2500 High Speed GMLAN Serial Data [+] 1 II LYX+M3U
12 0.5 BU/GY 636 Ambient Air Temperature Sensor Signal II -
13 0.5 BU/BN 4498 High Speed GMLAN Serial Data [+] 7 II (LTG/LYX)+NUG
14 0.5 WH/GN 5380 Brake Position Sensor Signal II -
15 0.5
0.5
BU/BK
BU/BK
7493
7493
High Speed GMLAN Serial Data [+] 3
High Speed GMLAN Serial Data [+] 3
II
II
(LTG/LYX)+(NUG)-EPH
EPH+LYX+NUG
16 0.5 WH/GY 1786 Transmission Park/Neutral Signal 1 II -
17 0.5 BU 2500 High Speed GMLAN Serial Data [+] 1 II (LYX+NUG)-M3U
18 0.5 WH/GY 459 A/C Compressor Clutch Relay Control II -
19 - 20 - - - Not Occupied - -
21 0.5 GN/BU 428 EVAP Purge Solenoid Valve Control II -
22 - - - Not Occupied - -
23 0.5 BK/GN 580 Engine Oil Pressure Sensor Low Reference II -
24 0.5 BK/BU 1271 Accelerator Pedal Position Low Reference 1 II -
25 - 29 - - - Not Occupied - -
30 0.5 BK/VT 1272 Accelerator Pedal Position Low Reference 2 II -
31 - - - Not Occupied - -
32 0.5 VT/BU 5291 Powertrain Main Relay Fused Supply 2 II -
33 0.5 VT/YE 5985 Accessory Wake-Up Serial Data II -
34 0.5 RD/WH 140 Secondary Fused Battery Positive Voltage 1 II -
35 - - - Not Occupied - -
36 0.5 YE/VT 4325 Starter Pinion Solenoid Actuator Relay Control II -
37 0.5 GN/GY 465 Fuel Pump Primary Relay Control II -
38 0.5 WH/RD 1164 Accelerator Pedal Position 5 Volt Reference 1 II -
39 0.5 YE/WH 1161 Accelerator Pedal Position Signal 1 II -
40 0.5 YE/BN 331 Engine Oil Pressure Sensor Signal II -
41 0.5 GN 380 A/C Refrigerant Pressure Sensor Signal II -
42 - 43 - - - Not Occupied - -
44 0.5 GN/WH 1162 Accelerator Pedal Position Signal 2 II -
45 0.5 BN/RD 1274 Accelerator Pedal Position 5V Reference 2 II -
46 0.5 YE 5530 Hood Open Switch Signal II -
47 0.5 VT/GN 439 Run/Crank Ignition 1 Voltage 4 II -
48 0.5 VT 5292 Powertrain Main Relay Fused Supply 3 II -
49 2 VT/BU 5290 Powertrain Main Relay Fused Supply 1 I -
50 - 73 - - - Not Occupied - -