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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALBODY ELECTRICALOEM CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) CONNECTOR END VIEW C2
2006 Buick Terraza CXL, 3.5 L, AWD

Engine Control Module (ECM) Connector End View C2

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Engine Control Module (ECM) Connector End View C2
Fig 1: Engine Control Module (ECM) C2 Connector End View
GM1335545Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) Connector End Views

Connector Part Information 
  • OEM: 15499466
  • Service: See Catalog
  • Description: 73-Way F Micro-Pack 64 Series Sealed (BK)
Terminal Part Information 
  • Pins: 1, 10, 14, 17, 23-24, 26-27, 33, 35, 39-40, 42-43, 46, 59-60, 62-63, 67
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)
  • Pins: 2-9, 11-13, 29, 32, 44, 48-49, 52, 64, 66, 68- 69, 71-72
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: Pins 2-5: K/K
  • Core/Insulation Crimp: Pins 6-9, 11-13, 29, 32, 44, 48-49, 52, 64, 66, 68-69, 71-72: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)
  • Pin: 73
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
Engine Control Module (ECM) C2

Pin Wire Color Circuit No. Function
1 PU 2121 IC 1 Control
2 TN/WH 3111 HO2S Low Signal - Sensor 1
3 PU/WH 3110 HO2S High Signal - Sensor 1
4 PU 3120 HO2S High Signal - Sensor 2
5 GY 3122 HO2S Low Signal - Sensor 2
6 L-BU 1876 Knock Sensor 2 Signal
7 GY 2303 Low Reference
8 D-BU 496 Knock Sensor 1 Signal
9 GY 1716 Low Reference
10 BARE 1251 Ground
11 YE 581 TAC Motor Control - 1
12 BN 582 TAC Motor Control - 2
13 PK/BK 5290 Ignition 1 Voltage
14 BN 2198 Camshaft Position Actuator Solenoid High Control
15-16 - - Not Used
17 OG/WH 2122 IC 2 Control
18-22 - - Not Used
23 TN 407 Low Reference
24 TN 808 Low Reference
25 - - Not Used
26 BARE 1251 Ground
27 YE/BK 1868 Low Reference
28 - - Not Used
29 TN 2752 Low Reference
30-31 - - Not Used
32 L-BU/BK 844 Fuel Injector 4 Control
33 L-BU 2123 IC 3 Control
34 - - Not Used
35 YE 2174 Low Reference
36-38 - - Not Used
39 D-BU 6259 5-Volt Reference
40 GY 605 5-Volt Reference
41 - - Not Used
42 TN 2760 Low Reference
43 L-GN 1867 5-Volt Reference
44 GY 2701 5-Volt Reference
45 - - Not Used
46 TN 2199 Low Reference
47 - - Not Used
48 L-GN/BK 1745 Fuel Injector 2 Control
49 YE/BK 846 Fuel Injector 6 Control
50-51 - - Not Used
52 TN/WH 845 Fuel Injector 5 Control
53-58 - - Not Used
59 BN/WH 633 CMP Sensor Signal
60 TN/WH 331 Oil Pressure Sensor Signal
61 - - Not Used
62 TN 472 IAT Sensor Signal
63 L-BU/WH 1800 CKP Sensor Signal
64 D-GN 485 TP Sensor 1 Signal
65 - - Not Used
66 PU 486 TP Sensor 2 Signal
67 YE 492 MAF Sensor Signal
68 GY/WH 3113 HO2S Heater Low Control - Sensor 1
69 TN/WH 3121 HO2S Heater Low Control - Sensor 2
70 - - Not Used
71 PK/BK 1746 Fuel Injector 3 Control
72 TN 1744 Fuel Injector 1 Control
73 BK/WH 451 Ground
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.