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Home >> GMC >> 2014 >> Terrain SLE, 4D Utility >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (Wiring Systems And Power Management - Component Connector End Views - A3L Sunshade To K20 ECM X3 (Lea)) >> Component Connector End Views >> K20 Engine Control Module X1 (LEA)

K20 Engine Control Module X1 (LEA)

WARNING: This page is about a different car, the 2012 GMC Terrain and 2012 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
GM2470482Courtesy of
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34566-1893
  • Service Connector: 13574782
  • Description: 73-Way F 0.64 2.8 Series, Sealed (BU with BK Case)
Terminal Part Information
  • Pins: 6, 9, 10, 14, 15, 21, 22, 25-27, 30, 32-34, 42, 44, 46, 51-53, 57, 59, 62, 63, 66, 70, 72
  • Terminated Lead: 13575575
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: Pin: 6, 9, 10, 14, 15, 21, 22, 25-27, 30, 32-34, 42, 44, 46, 51-53, 57, 59, 63, 66, 70, 72 - J/J
  • Core/Insulation Crimp: Pin 62 - K/K
  • Pins: 39, 40
  • Terminated Lead: 13575811
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Pins: 73
  • Terminated Lead: 13576375
  • Release Tool: J-38125-11A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: Not Available
K20 Engine Control Module X1 (LEA)

Pin Wire Circuit Function
1-3 - - Not Available
4 0.5 YE/WH 3200 Throttle Inlet Absolute Pressure Sensor Signal
5 0.5 GY/WH 3202 Throttle Inlet Absolute Pressure Sensor 5V Return
6 0.5 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
7-8 - - Not Available
9 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal
10 0.5 GY 2709 5-Volt 1 Reference
11-13 - - Not Available
14 0.5 WH/BK 1164 5-Volt 4 Reference
15 0.5 D-BU 1161 APP Sensor 1 Signal
16-20 - - Not Available
21 0.5 GY 2700 5-Volt 1 Reference
22 0.5 TN 5514 Low Reference
23-24 - - Not Available
25 0.5 D-BU 1936 Fuel Level Sensor Signal
26 0.5 BN/WH 6281 Sensor Low Reference
27 0.5 L-BU 1937 Fuel Level Sensor Signal - Secondary
28-29 - - Not Available
30 0.5 BN 1271 Low Reference
31 - - Not Available
32 0.5 D-GN/WH 459 A/C Compressor Clutch Relay Control
33 0.5 TN 1274 5-Volt 3 Reference
34 0.5 L-BU 1162 APP Sensor 2 Signal
35-37 - - Not Available
38 0.5 WH 1579 Fuel Temperature/Composition Signal (FHS)
39 0.35 TN/BK 2500 High Speed GMLAN Serial Data Bus +
40 0.35 TN 2501 High Speed GMLAN Serial Data Bus -
41 - - Not Available
42 0.5 D-BU 473 High Speed Cooling Fan Relay Control
43 - - Not Available
44 0.5 D-GN/WH 465 Fuel Pump Relay Control
45 - - Not Available
46 0.5 BN/WH 419 MIL Control
47 0.5 GY 5381 Brake Position Sensor 5 Volt Reference
48 0.5 TN 5380 Brake Position Sensor Signal
49-50 - - Not Available
51 0.5 PK 439 Ignition Voltage
52 0.5 RD/WH 440 Battery Positive Voltage
53 0.5 PU 1272 Low Reference
54-56 - - Not Available
57 0.5 L-BU/WH 6311 Brake Pedal Switch Signal
58 - - Not Available
59 0.5 D-GN 335 Low Speed Cooling Fan Relay Control
60-61 - - Not Available
62 0.8 PK/BK 5291 Ignition Voltage
63 0.5 PU/WH 6386 Starter Relay Control
64-65 - - Not Available
66 0.5 WH 1310 EVAP Canister Vent Solenoid Control
67 - - Not Available
68 0.5 BN/WH 5382 Brake Position Sensor Low Reference
69 - - Not Available
70 0.5 D-BU 5985 Serial Data Wake-Up Signal
71 - - Not Available
72 0.5 YE 5991 Powertrain Relay Control
73 1 PK/BK 5290 Ignition Voltage
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