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HOMESERVICE MANUALSGMC2011YUKON BASE, 5.3 0, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ELECTRONIC STEERING CONTROL MODULE X2 THROUGH MEMORY SEAT MODULECOMPONENT CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) X3 (HP2)
2011 GMC Yukon Base, 5.3 0, RWD

Engine Control Module (ECM) X3 (HP2)

2011 GMC Yukon Base, 5.3 0, RWDSECTION Engine Control Module (ECM) X3 (HP2)
Fig 1: Engine Control Module (ECM) X3 (HP2) Connector End View
GM1590596Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X3 (HP2)

Pin Wire Circuit Function
1-2 - - Not Used
3 0.5 TN 1667 HO2S Low Signal - Bank 2 Sensor 1
4 0.5 PU 1666 HO2S High Signal - Bank 2 Sensor 1
5 0.5 PU 1670 HO2S High Signal - Bank 2 Sensor 2
6 0.5 TN 1671 HO2S Low Signal - Bank 2 Sensor 2
7 - - Not Used
8 0.5 D-BU 941 Cooling Pump Relay Control
9 - - Not Used
10 0.35 GY 5493 Valve Lifter Oil Manifold (VLOM) Assembly Cylinder 6 Shutoff Solenoid
11 0.35 D-BU 5491 Valve Lifter Oil Manifold (VLOM) Assembly Cylinder 1 Shutoff Solenoid
12-14 - - Not Used
15 0.5 L-GN 3212 HO2S Heater Low Control - Bank 2 Sensor 1
16-20 - - Not Used
21 0.35 TN 5514 Low Reference
22 0.5 OG/BK 469 Low Reference
23 0.5 OG/BK 469 Low Reference
24-32 - - Not Used
33 0.5 L-BU 6106 PTLAN -
34 - - Not Used
35 0.5 TN 2761 Low Reference
36 0.5 TN 955 Low Reference
37 0.35 GY 2700 5-Volt Reference 1
38 0.8 GY 2704 5-Volt Reference
39 0.5 GY 2704 5-Volt Reference 1
40-46 - - Not Used
47 0.5 TN 2501 High Speed GMLAN Serial Data Bus -
48 0.5 D-GN/WH 428 EVAP Canister Purge Solenoid Control
49 0.35 D-BU 473 Low Speed Cooling Fan Relay Control
50 0.5 OG/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2
51 0.5 TN 2501 High Speed GMLAN Serial Data Bus -
52 0.5 TN 2501 High Speed GMLAN Serial Data Bus -
53 0.5 D-BU 6105 PTLAN +
54 - - Not Used
55 0.5 YE 410 Engine Coolant Temperature (ECT) Sensor Signal
56 0.5 YE 954 5-Volt Reference
57 0.35 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
58 0.5 L-GN 432 Barometric Pressure Sensor Signal
59 0.5 L-GN 432 Manifold Absolute Pressure (MAP) Sensor Signal
60-65 - - Not Used
66 0.35 OG/BK 6399 Vehicle Speed Signal (without NQH)
0.5 PU/WH 821 Vehicle Speed Sensor (VSS) High Signal (NQH)
67 0.5 L-GN/BK 822 Vehicle Speed Sensor (VSS) Low Signal (NQH)
68 0.35 L-GN 5492 Valve Lifter Oil Manifold (VLOM) Assembly Cylinder 7 Shutoff Solenoid
69 0.35 OG 5494 Valve Lifter Oil Manifold (VLOM) Assembly Cylinder 4 Shutoff Solenoid
70 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus +
71 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus +
72 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus +
73 3 BK/WH 451 Ground
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 15497996
  • Service Connector: 88988372
  • Description: 73-Way F 0.64 2.8 Series, Sealed (GY Encased in BK)
Terminal Part Information
  • Pins: 3-6, 8, 10, 11, 15, 21-23, 33, 35-39, 47-53, 55-59, 66-72
  • Terminated Lead: Pins 3-6, 8, 15, 22, 23, 33, 35, 36, 38, 39, 47, 48, 50-53, 55, 56, 58, 59, 66, 69, 70-72 - 13575575
  • Terminated Lead: Pins 10, 11, 21, 37, 49, 57, 66, 68, 69 - 13575811
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: Pins 3-6, 8, 15, 22, 23, 33, 35, 36, 38, 39, 47, 48, 50-53, 55, 56, 58, 59, 66, 69, 70-72 - J/J
  • Core/Insulation Crimp: Pins 10, 11, 21, 37, 49, 57, 66, 68, 69 - H/H
  • Pins: 73
  • Terminated Lead: Service by Terminal - 7116-4152-02
  • Release Tool: J-38125-11A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: A/5
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • 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.