LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2012 >> Enclave AWD >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Wiring Diagrams >> Wiring Systems And Power Management - Component Connector End Views - A/C Clutch To Engine Cooling Fan (Left) >> Component Connector End Views >> Engine Control Module (ECM) X2

Engine Control Module (ECM) X2

GM1590592Courtesy of
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 12582677
  • Service Connector: 88988931
  • Description: 73-Way F 0.64 2.8 Series, Sealed (BK)
Terminal Part Information
  • Pins: 1-72
  • Terminated Lead: 13575575
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Pins: 73
  • Terminated Lead: 13576392
  • Release Tool: J-38125-11A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: 2/5
Engine Control Module (ECM) X2

Pin Wire Circuit Function
1-2 - - Not Available
3 0.5 TN 808 Low Reference
4-9 - - Not Available
10 0.5 PU/WH 3110 Reference Voltage - Bank 1 Sensor 1
11 0.5 PU/WH 3210 HO2S Reference Voltage - Bank 2 Sensor 1
12 0.5 PU 3120 HO2S High Signal - Bank 1 Sensor 2
13 0.5 PU 3220 HO2S High Signal - Bank 2 Sensor 2
14 - - Not Available
15 0.5 PU 4008 Intake Air Humidity (IAH) Sensor Signal
16 0.5 BN 582 TAC Motor Control - 2
17 - - Not Available
18 0.5 GY 598 5-Volt Reference 1
19 0.5 YE 2918 Fuel Rail Pressure (FRP) Sensor Signal
20-25 - - Not Available
26 0.5 TN/WH 3111 Low Reference - Bank 1 Sensor 1
27 0.5 TN/WH 3211 HO2S Low Signal - Bank 2 Sensor 1
28 0.5 TN/WH 3121 Low Reference - Bank 1 Sensor 2
29 0.5 TN 3221 Low Reference - Bank 2 Sensor 2
30-31 - - Not Available
32 0.5 YE 581 TAC Motor Control - 1
33 - - Not Available
34 0.5 GY 2701 5-Volt Reference 4
35 - - Not Available
36 0.5 D-BU 496 Knock Sensor (KS) 1 Signal
37 0.5 L-BU 1876 Knock Sensor (KS) 2 Signal
38-40 - - Not Available
41 0.5 GY/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1
42 0.5 GY/WH 3122 HO2S Heater Low Control - Bank 1 Sensor 2
43 0.5 L-GN 432 MAP Sensor Signal
44 0.5 GY 2704 5-Volt Reference 3
45-48 - - Not Available
49 0.5 L-BU 6289 Intake Air Temperature (IAT) Sensor Signal
50 - - Not Available
51 0.5 D-GN/WH 428 EVAP Canister Purge Solenoid Control
52 0.5 YE 492 MAF Sensor Signal
53 0.5 OG 225 Generator Turn On Signal
54 0.5 TN 2752 Low Reference
55 0.5 GY 23 Generator Field Duty Cycle Signal
56 0.5 GY 1716 Low Reference
57 0.5 GY 2303 Low Reference
58 0.5 OG/BK 1786 Transmission Park/Neutral Signal
59 - - Not Available
60 - - Not Used
61 0.5 L-GN 3212 HO2S Heater Low Control - Bank 2 Sensor 1
62 0.5 OG/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2
63 0.5 OG/BK 469 Low Reference
64-68 - - Not Used
69 0.5 TN 2760 Low Reference
70 0.5 D-GN 485 Throttle Position Sensor Signal (1)
71-72 - - Not Available
73 2 BK/WH 451 Ground
scientia non olet · About LEMON Manuals