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Home >> Hummer >> 2004 >> H2 4D Utility Pickup >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> OEM Connector End Views >> Connector End Views >> Powertrain Control Module (PCM) Connector End View - C2
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Powertrain Control Module (PCM) Connector End View - C2

Powertrain Control Module (PCM) - C2 Connector End View

GM684875Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191488
  • 80-Way F Micro-Pack 100W Sealed (GN)
Pin Wire Color Circuit No. Function
1 BK/WH 451 Ground
2 BN 418 TCC PWM Solenoid Valve Control
3-5 - - Not Used
6 RD/BK 1228 PC Solenoid Valve High Control (Sol. A)
7 - - Not Used
8 L-BU/WH 1229 PC Solenoid Valve Low Control (Sol. A)
9 D-GN/WH 465 Fuel Pump Relay Control
10 WH 121 Engine Speed Signal
11-13 - - Not Used
14 RD/BK 380 A/C Refrigerant Pressure Sensor Signal
15 BN 25 Charge Indicator Control
16 GY/BK 1694 4WD Low Signal
17-19 - - Not Used
20 L-GN/BK 822 VSS Low Signal
21 PU/WH 821 VSS High Signal
22-24 - - Not Used
25 TN 472 IAT Sensor Signal
26 PU 2121 IC 1 Control
27 RD 2127 IC 7 Control
28 L-BU/WH 2126 IC 6 Control
29 D-GN/WH 2124 IC 4 Control
30 - - Not Used
31 YE 492 MAF Sensor Signal
32 L-GN 432 MAP Sensor Signal
33 - - Not Used
34 D-GN/WH 428 EVAP Canister Purge Solenoid Control
35-38 - - Not Used
39 RD 631 12 Volt Reference
40 BK/WH 451 Ground
41 - - Not Used
42 TN/BK 422 TCC Solenoid Valve Control
43 D-GN/
WH
459 A/C Compressor Clutch Relay Control
44 - - Not Used
45 WH 1310 EVAP Canister Vent Solenoid Control
46 BN/WH 419 MIL Control
47 YE/BK 1223 Shift Solenoid B Valve Control
48 L-GN 1222 Shift Solenoid A Valve Control
49 - - Not Used
50 D-GN/WH 817 Vehicle Speed Signal
51 YE/BK 1227 TFT Sensor Signal
52 BN 2391 HO2S Heater Low Control - Bank 1 Sensor 2
53 RD/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2
54 PU/WH 1589 Fuel Level Sensor Signal
55-56 - - Not Used
57 BK 552 Low Reference
58 TN/WH 332 Oil Pressure Sensor Signal
59 PU 806 Crank Voltage
60 BN 2129 Low Reference
61 BN/WH 2130 Low Reference
62 GY 773 Transmission Range Switch Signal C
63 PK 1224 Transmission Fluid Pressure Switch Signal A
64 D-GN 890 Fuel Tank Pressure Sensor Signal
65 - - Not Used
66 PU/WH 2128 IC 8 Control
67 RD/WH 2122 IC 2 Control
68 D-GN 2125 IC 5 Control
69 L-BU 2123 IC 3 Control
70-71 - - Not Used
72 BK/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1
73 - - Not Used
74 L-GN 3212 HO2S Heater Low Control - Bank 2 Sensor 1
75 GY 23 Generator Field Duty Cycle Signal
76-79 - - Not Used
80 BK 2751 Low Reference