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Home >> Buick >> 2007 >> Allure CXL >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System & Fuel System - 3.8L - Introduction (2 Of 2) >> Component Locator >> Powertrain Control Module Connectors >> Powertrain Control Module (PCM) C2 (NU3)
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Powertrain Control Module (PCM) C2 (NU3)

Fig 1: PCM C2 Connector End View (NU3)
GM1524159Courtesy of GENERAL MOTORS CORP.
PCM C2 Connector Part Information (NU3)

Connector Part Information 
  • OEM: 15460475
  • Service: 88953274
  • Description: 73-Way F Micro-Pack 64 Series (BK)
Terminal Part Information 
  • Pins: 1-13, 16, 18, 26- 31, 33- 35, 37, 41, 45- 48, 53, 55, 57, 58, 59, 61
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
  • Pins: 73
  • Terminal/Tray: 15304720/19
  • Core/Insulation Crimp: 4/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
PCM C2 Connector Terminal Identification (NU3)

Pin Wire Color Circuit No. Function
1 BN 1456 EGR Valve Position Signal
2 OG/BK 1061 UART Serial Data Secondary
3 TN 800 UART Serial Data Primary
4 BK/WH 845 Fuel Injector 5 Control
5 BK 1744 Fuel Injector 1 Control
6 YE/BK 846 Fuel Injector 6 Control
7 PK/BK 1746 Fuel Injector 3 Control
8 BK 2753 Low Reference
9 L-GN/BK 1745 Fuel Injector 2 Control
10 L-BU/BK 844 Fuel Injector 4 Control
11 TN/BK 424 IC Timing Signal
12 BK/WH 3112 HO2S Heater Low Control Sensor 1
13 RD 1676 EGR Solenoid High Control
14-15 - - Not Used
16 GY 435 EGR Solenoid Low Control
17 - - Not Used
18 L-GN 432 MAP Sensor Signal
19-25 - - Not Used
26 BK 630 Camshaft Position Signal
27 PU/WH 430 Low Resolution Engine Speed Signal
28 L-BU/BK 647 Medium Resolution Engine Speed Signal
29 BK 2761 Low Reference
30 OG/BK 469 Low Reference
31 BN 1174 Oil Level Switch Signal
32 - - Not Used
33 GY 2702 5-Volt Reference 1
34 GY 2704 5-Volt Reference 2
35 GY 474 5 Volt Reference 1
36 - - Not Used
37 RD/BK 453 Low Reference
38-40 - - Not Used
41 D-GN/WH 428 EVAP Canister Purge Solenoid Valve Control
42-44 - - Not Used
45 GY 23 Generator Field Duty Cycle Signal
46 D-BU 496 Knock Sensor 1 Signal
47 TN/WH 3111 HO2S Low Signal
48 PU/WH 3110 HO2S High Signal
49-52 - - Not Used
53 RD 225 Generator Turn On Signal
54 - - Not Used
55 YE 410 ECT Sensor Signal
56 - - Not Used
57 TN/BK 231 Oil Pressure Switch Signal
58 L-BU 1876 Knock Sensor 2 Signal
59 PK/BK 429 Air Solenoid Control
60 - - Not Used
61 WH 423 IC Timing Control
62-72 - - Not Used
73 BK/WH 451 Ground
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