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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) CONNECTOR END VIEW C3
2006 Buick Terraza CXL, 3.5 L, AWD

Engine Control Module (ECM) Connector End View C3

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Engine Control Module (ECM) Connector End View C3
Fig 1: Engine Control Module (ECM) C3 Connector End View
GM1335545Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) Connector End Views

Connector Part Information 
  • OEM: 15497996
  • Service: See Catalog
  • Description: 73-Way F Micro-Pack 64 Series Sealed (GY)
Terminal Part Information 
  • Pins: 7, 12, 17-18, 21, 23, 29, 32, 35, 37, 39, 46, 48-49, 55, 57, 59, 64, 66
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)
  • Pins: 33, 53
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)
Engine Control Module (ECM) C3

Pin Wire Color Circuit No. Function
1-6 - - Not Used
7 OG 225 Generator Turn On Signal
8-11 - - Not Used
12 TN/BK 464 Delivered Torque Signal
13-16 - - Not Used
17 OG/BK 463 Requested Torque Signal
18 BN 1174 Oil Level Switch Signal
19-20 - - Not Used
21 BK/WH 2751 Low Reference
22 - - Not Used
23 OG/BK 469 Low Reference
24-28 - - Not Used
29 GY 23 Generator Field Duty Cycle Signal
30-31 - - Not Used
32 OG 6392 Variable Tuning Control
33 TN 2501 High Speed GMLAN Serial Data Bus (-)
34 - - Not Used
35 TN 2761 Low Reference
36 - - Not Used
37 GY 2700 5-Volt Reference
38 - - Not Used
39 GY 2704 5-Volt Reference
40-45 - - Not Used
46 D-GN 6307 Park/Neutral Signal
47 - - Not Used
48 D-GN/WH 428 EVAP Canister Purge Solenoid Control
49 D-GN 335 Low Speed Cooling Fan Relay Control
50-52 - - Not Used
53 TN/BK 2500 High Speed GMLAN Serial Data Bus (+)
54 - - Not Used
55 YE 410 ECT Sensor Signal
56 - - Not Used
57 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
58 - - Not Used
59 L-GN 432 MAP Sensor Signal
60-63 - - Not Used
64 YE/BK 6806 Variable Tuning Position Sensor Signal
65 - - Not Used
66 BN/WH 6354 Output Speed High (Replicated TOSS) Input Signal
67-73 - - Not Used
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.