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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2051 (COMPONENT CONNECTOR END VIEWS - (2 OF 5))ENGINE CONTROL MODULE (ECM) X1 (LY7)
2004 Oldsmobile Bravada AWD

Engine Control Module (ECM) X1 (LY7)

2004 Oldsmobile Bravada AWDSECTION Engine Control Module (ECM) X1 (LY7)
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 (LY7) Connector End View
GM784851Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X1 (LY7)

Pin Wire Circuit Function
1-6 - - Not Used
7 0.5 WH 17 Stop Lamp Switch Signal
8 - - Not Used
9 0.5 BN/WH 6281 Low Reference
10-11 - - Not Used
12 0.5 BN/WH 419 Malfunction Indicator Lamp (MIL) Control
13 0.5 D-GN/WH 465 Fuel Pump Relay Control - Primary
14-17 - - Not Used
18 0.5 D-BU 5985 Accessory Wakeup Serial Data
19 0.5 PK 639 Ignition 1 Voltage
20 0.5 RD/WH 40 Battery Positive Voltage
21-25 - - Not Used
26 0.5 PU/WH 6386 Starter Enable Relay Control
27-32 - - Not Used
33 0.5 WH/BK 1164 5-Volt Reference 2
34 0.5 BN/WH 6283 5-Volt Reference 1
35 0.5 TN 1274 5-Volt Reference 1
36 0.5 BN 1271 Low Reference
37 0.5 PU 1272 Low Reference
38-39 - - Not Used
40 0.5 YE 5991 Powertrain Relay Coil Control
41-43 - - Not Used
44 0.5 D-BU 1936 Fuel Level Sensor Signal - Secondary
45 0.5 L-BU 1937 Fuel Level Sensor Signal - Primary
46 - - Not Used
47 0.5 D-BU 1161 Accelerator Pedal Position (APP) Sensor 1 Signal
48 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal
49 0.5 L-BU 1162 Accelerator Pedal Position (APP) Sensor 2 Signal
50-52 - - Not Used
53 0.5 D-GN/WH 459 A/C Compressor Clutch Relay Control
54 0.5 D-BU 473 High Speed Engine Cooling Fan Relay Control
55 0.5 WH 1310 EVAP Canister Vent Solenoid Control
56 - - Not Used
Connector Part Information 
  • OEM: 13510837
  • Service: 88988373
  • Description: 56-Way F MX123 Series Sealed (BU)
Terminal Part Information 
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
RENDER: 1.0x

NO RELATED

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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.