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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1187 (ENGINE CONTROLS - 6.0L - ALTERNATIVE FUELS (INTRODUCTION))COMPONENT LOCATORPOWERTRAIN CONTROL MODULE (PCM) CONNECTOR END VIEWS
2004 Oldsmobile Bravada AWD

Powertrain Control Module (PCM) Connector End Views

2004 Oldsmobile Bravada AWDSECTION Powertrain Control Module (PCM) Connector End Views
WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Powertrain Control Module (PCM) - C1

GM684875Courtesy of GENERAL MOTORS CORP.
Connector Part Information 80-Way F Micro-Pack 100W Sealed Assembly - 12191489
Does not include the following:
  • TPA (BU) 12176408
  • Terminal - 12084912
Pin Wire Color Circuit No. Function
1 BK/WH 451 Ground
2 L-GN 1867 12-Volt Reference
3 PK/BK 1746 Fuel Injector 3 Control
4 L-GN/BK 1745 Fuel Injector 2 Control
5-6 - - Not Used
7 GY 2705 5-Volt Reference
8-10 - - Not Used
11 L-BU 1876 Knock Sensor 2 Signal
12 D-BU/WH 1869 CKP Sensor Signal
13 - - Not Used
14 OR/BK 1061 UART Serial Data
15 D-BU/WH 774 UART Serial Data
16 - - Not Used
17 D-BU 1225 Transmission Fluid Pressure Switch Signal B
18 RD 1226 Transmission Fluid Pressure Switch Signal C
19 PK 439 Ignition 1 Voltage
20 OR 440 Battery Positive Voltage
21 YE/BK 1868 Low Reference
22 - - Not Used
23 BK 470 Low Reference
24 BK/WH 451 Ground
25 TN 1671 HO2S Low Signal - Bank 2 Sensor 2
26 TN 1667 HO2S Low Signal - Bank 2 Sensor 1
27 BK/WH 451 Ground
28 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2
29 TN 1664 HO2S Low Signal - Bank 1 Sensor 1
30 L-GN 1478 Coolant Level Switch Signal
31 - - Not Used
32 BK/WH 771 Transmission Range Switch Signal A
33 PU 420 TCC Brake Switch/Cruise Control Release Signal
34 WH 776 Transmission Range Switch Signal P
35 - - Not Used
36 BK 1744 Fuel Injector 1 Control
37 YE/BK 846 Fuel Injector 6 Control
38 RD 2531 Alternative Fuel Operation (AFO) Enable
39 YE/BK 625 Starter Enable Relay Control
40 BK/WH 451 Ground
41 - - Not Used
42 D-BU 313 Low Pressure Lock-Off (LPL) Control
43 RD/BK 877 Fuel Injector 7 Control
44 L-BU/BK 844 Fuel Injector 4 Control
45 GY 2700 5-Volt Reference
46 GY 474 5-Volt Reference
47 - - Not Used
48 GY 597 5-Volt Reference
49-50 - - Not Used
51 D-BU 496 Knock Sensor 1 Signal
52 - - Not Used
53 GY 720 Low Reference
54 OR/BK 469 Low Reference
55 - - Not Used
56 WH 790 Fuel Injection Control Module Status
57 OR 440 Battery Positive Voltage
58 D-GN 1049 Class 2 Serial Data
59 YE 710 Class 2 Serial Data
60 - - Not Used
61 PK/BK 632 Low Reference
62 - - Not Used
63 BK 2755 Low Reference
64 BK/WH 451 Ground
65 PU 1670 HO2S High Signal - Bank 2 Sensor 2
66 PU 1666 HO2S High Signal - Bank 2 Sensor 1
67 BK/WH 451 Ground
68 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2
69 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1
70 BN 1174 Oil Level Switch Signal
71 PU/WH 455 Fuel Gage Select Signal
72 YE 772 Transmission Range Switch Signal B
73 BN/WH 633 CMP Sensor Signal
74 YE 410 ECT Sensor Signal
75 PK 1020 Off/Run/Crank Voltage
76 BK/WH 845 Fuel Injector 5 Control
77 D-BU/WH 878 Fuel Injector 8 Control
78-79 - - Not Used
80 BK 407 Low Reference
Powertrain Control Module (PCM) - C2

GM684875Courtesy of GENERAL MOTORS CORP.
Connector Part Information 80-Way F Micro-Pack 100W Sealed Assembly - 12191488
Does not include the following:
  • TPA (GN) - 15358857
  • Terminal - 12084912
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 - Primary
10 WH 121 Engine Speed Signal
11-13 - - Not Used
14 RD/BK 380 A/C Refrigerant Pressure Sensor Signal
15 BR 25 Charge Indicator Control
16 GY/BK 1694 4WD Low Signal
17-18 - - Not Used
19 BK/WH 1695 Axle Switch Signal
20 L-GN/BK 822 VSS Low Signal
21 PU/WH 821 VSS High Signal
22 RD/BK 1230 AT ISS High Signal
23 D-BU/WH 1231 AT ISS Low Signal
24 D-BU 2670 Fuel Rail Pressure PWM Signal
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 PK/BK 462 Fuel Injector Control Module Status
31 YE 492 MAF Sensor Signal
32 L-GN 432 MAP Sensor Signal
33 L-BU/BK 1580 High Pressure Lock-Off (HPL) Control
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
41-42 - - Not Used
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 (2-3 Shift Solenoid or Shift Solenoid B) Valve Control
48 L-GN 1222 (1-2 Shift Solenoid or Shift Solenoid A) Valve Control
49 YE/BK 1827 Vehicle Speed Signal
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 1589 Fuel Level Sensor Signal - Primary
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
RENDER: 1.0x

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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.