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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2051 (COMPONENT CONNECTOR END VIEWS - (2 OF 5))ENGINE CONTROL MODULE (ECM) X1 (LE5/LE9)
2004 Oldsmobile Bravada AWD

Engine Control Module (ECM) X1 (LE5/LE9)

2004 Oldsmobile Bravada AWDSECTION Engine Control Module (ECM) X1 (LE5/LE9)
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) X1 (LE5/LE9) Connector End View
GM1590596Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X1 (LE5/LE9)

Pin Wire Circuit Function
1 0.5 D-BU 1161 Accelerator Pedal Position (APP) Sensor 1 Signal
2 - - Not Used
3 0.5 D-BU 5985 Accessory Wakeup Serial Data
4 - - Not Used
5 0.5 D-GN 335 Low Speed Engine Cooling Fan Relay Control
6 0.5 D-GN/WH 465 Fuel Pump Relay Control - Primary
7 - - Not Used
8 0.5 TN 5514 Low Reference
9 0.5 TN/WH 3121 HO2S Low Signal - Sensor 2
10-12 - - Not Used
13 0.5 YE 5991 Powertrain Relay Coil Control
14 - - Not Used
15 0.5 GY/WH 3122 HO2S Heater Low Control - Sensor 2
16 - - Not Used
17 0.5 PU 3120 HO2S High Signal - Sensor 2
18 0.5 L-BU 1162 Accelerator Pedal Position (APP) Sensor 2 Signal
19 0.5 PK 639 Ignition 1 Voltage
20 0.5 RD/WH 40 Battery Positive Voltage
21 0.5 PU 1272 Low Reference
22-23 - - Not Used
24 0.5 BN/WH 6281 Low Reference
25 0.5 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
26 - - Not Used
27 0.5 BN/WH 419 Malfunction Indicator Lamp (MIL) Control
28-29 - - Not Used
30 0.5 D-GN/WH 459 A/C Compressor Clutch Relay Control
31 - - Not Used
32 0.5 PU/WH 6386 Starter Enable Relay Control
33-34 - - Not Used
35 0.5 TN 2760 Low Reference
36 - - Not Used
37 0.5 YE 492 Mass Air Flow (MAF) Sensor Signal
38 - - Not Used
39 0.5 D-BU 1936 Fuel Level Sensor Signal - Secondary
40 0.5 L-BU 1937 Fuel Level Sensor Signal - Primary
41 0.5 BN 1271 Low Reference
42 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal
43 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+
44 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
45-46 - - Not Used
47 0.5 WH/BK 1164 5-Volt Reference 2
48 - - Not Used
49 0.5 D-BU 473 High Speed Engine Cooling Fan Relay Control
50-54 - - Not Used
55 0.5 WH 17 Stop Lamp Switch Signal
56-57 - - Not Used
58 0.5 L-BU 6289 Intake Air Temperature (IAT) Sensor Signal
59-64 - - Not Used
65 0.5 GY 2700 5-Volt Reference 1
66 0.5 BN/WH 6283 5-Volt Reference 1
67 0.5 TN 1274 5-Volt Reference 1
68-69 - - Not Used
70 0.5 WH 1310 EVAP Canister Vent Solenoid Control
71-72 - - Not Used
73 0.8 PK/BK 6341 Powertrain Relay Contact Signal
Connector Part Information 
  • OEM: 15499466
  • Service: 88988931
  • Description: 73-Way F MX123 Series, Sealed (BK)
Terminal Part Information 
  • Pins: 1, 3, 5-6, 8-9, 11, 13, 15, 17-21, 24-25, 27, 30, 32, 35, 37, 39, 40-45, 47, 49, 54-55, 57-58, 61, 65-67, 70-71
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 73
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
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.