2006 Hummer H3 AutomaticFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module (PCM) Connector End View C2

Fig 1: Powertrain Control Module (PCM) C2 Connector End Views
GM1567222Courtesy of GENERAL MOTORS CORP.
Powertrain Control Module (PCM) Connector Parts Information

Connector Part Information 
  • OEM: 15475339
  • Service: See Catalog
  • Description: 73-Way F Micro-Pack 064/GT 280 Series Sealed (BK)
Terminal Part Information 
  • Pins:
  • Terminal: 15359541/4
  • Core/Insulation Crimp:
  • Release Tool/Test Probe: 15381651-2/J-35616-64A (L-BU)
Powertrain Control Module (PCM) C2 Terminal Identification

Pin Wire Color Circuit No. Function
1 RD 225 Generator Turn On Signal
2 D-GN 485 TP Sensor 1 Signal
3-5 - - Not Used
6 GY 2701 5-Volt Reference
7 PU 486 TP Sensor 2 Signal
8 GY 2704 5-Volt Reference
9 L-BU/BK 1688 5-Volt Reference
10-12 - - Not Used
13 PU 2329 Camshaft Position Signal
14 PK/BK 632 Low Reference
15 L-BU 2344 Low Reference
16 - - Not Used
17 YE 573 CKP Sensor 1 Signal
18 PU 574 Low Reference
19 WH/BK 2257 Low Reference
20 OG/BK 469 Low Reference
21 - - Not Used
22 RD 631 12-Volt Reference
23 RD 1673 12-Volt Reference
24-25 - - Not Used
26 BK 630 Camshaft Position Signal
27-31 - - Not Used
32 TN/WH 1653 HO2S Low Signal Bank 1 Sensor 1
33 BK 1744 Fuel Injector 1 Control
34 - - Not Used
35 YE 410 ECT Sensor Signal
36 BK/WH 1704 Low Reference
37 L-GN 432 MAP Sensor Signal
38 - - Not Used
39 BK 2752 Low Reference
40 PU 2121 IC 1 Control
41 YE 492 MAF Sensor Signal
42 D-GN 2125 IC 5 Control
43 - - Not Used
44 RD/WH 2122 IC 2 Control
45 GY 23 Generator Field Duty Cycle Signal
46 - - Not Used
47 GY 2702 CMP Actuator Solenoid High Control
48 D-GN 1655 HO2S High Signal Bank 1 Sensor 1
49-50 - - Not Used
51 TN 472 IAT Sensor Signal
52 BK 2761 Low Reference
53 PK/BK 1746 Fuel Injector 3 Control
54 L-BU/BK 844 Fuel Injector 4 Control
55 BK/WH 845 Fuel Injector 5 Control
56 L-GN/BK 1745 Fuel Injector 2 Control
57 - - Not Used
58 D-GN 676 HO2S Heater High Control Bank 1 Sensor 1
59 L-BU 2123 IC 3 Control
60 D-GN/WH 2124 IC 4 Control
61-63 - - Not Used
64 BK 2760 Low Reference
65 BN 582 TAC Motor Control-2
66 YE 581 TAC Motor Control-1
67 - - Not Used
68 D-BU 496 Knock Sensor Signal
69 GY 1716 Low Reference
70-72 - - Not Used
73 BK/WH 451 Ground
Factory Service Tools

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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.

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