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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 886 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - E THROUGH H)COMPONENT CONNECTOR END VIEWS - E THROUGH HENGINE CONTROL MODULE (ECM) X2 (LNF)
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Engine Control Module (ECM) X2 (LNF)

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Engine Control Module (ECM) X2 (LNF)
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) X2 (LNF)
GM1360604Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X2 (LNF)

Pin Wire Circuit Function
1 0.8 BK/WH 451 Ground
2 0.8 BK/WH 451 Ground
3 0.8 PK/BK 5290 Ignition Voltage
4 0.8 BK/WH 451 Ground
5 0.8 PK/BK 5290 Ignition Voltage
6 0.8 PK/BK 5290 Ignition Voltage
7 0.5 GY/WH 3122 HO2S Heater Low Control Sensor 2
8 - - Not Used
9 0.35 TN 2759 Low Reference
10 0.35 D-GN/WH 465 Fuel Pump Relay Control
11 0.35 TN 5514 A/C Refrigerant Pressure Sensor Low Reference (C67)
12 - - Not Used
13 0.35 YE 492 MAF Sensor Signal
14 0.35 GY 2709 5-Volt Reference 1
15 0.35 D-BU 1161 APP Sensor 1 Signal
16-18 - - Not Used
19 0.5 WH 1310 EVAP Canister Vent Solenoid Control
20-21 - - Not Used
22 0.35 TN 2760 Low Reference
23 0.5 TN/WH 3121 HO2S Low Signal Sensor 2
24 - - Not Used
25 0.35 L-BU 1162 APP Sensor 2 Signal
26 - - Not Used
27 0.35 D-GN 890 FTP Sensor Signal
28-33 - - Not Used
34 0.35 BN 1271 Low Reference
35 0.35 GY 2700 5-Volt Reference 3 (C67)
36 0.35 PU 1589 Fuel Level Sensor Signal
37 0.35 L-GN 6338 CPP Sensor Signal
38 0.5 PU 3120 HO2S High Signal Sensor 2
39 0.35 OG/BK 380 A/C Refrigerant Pressure Sensor Signal (C67)
40 0.5 PU 401 OSS Sensor Low Signal
41 0.35 BN 4 Accessory Voltage
42 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus (+)
43 - - Not Used
44 0.35 D-GN/WH 459 A/C Compressor Clutch Relay Control (C67)
45 0.35 D-BU 473 High Speed Cooling Fan Relay Control
46 0.35 D-GN 335 Cooling Fan Relay Control
47 0.35 PU 1272 Low Reference
48 0.35 TN 1274 5-Volt Reference 3
49 0.35 WH/BK 1164 5-Volt Reference 2
50 0.35 L-BU 6289 IAT Sensor Signal
51 - - Not Used
52 0.8 L-BU 20 Stop Lamp Supply Voltage
53 0.5 YE 400 OSS Sensor High Signal
54 0.5 PK 1039 Ignition Voltage
55 0.5 TN 2501 High Speed GMLAN Serial Data BUS (-)
56 0.5 RD/WH 840 Battery Positive Voltage
57 0.35 PU/WH 6386 Starter Relay Coil Control
58 0.35 YE 5991 Powertrain Relay Coil Control
Connector Part Information 
  • Harness: Body
  • OEM: 1 928 404 916
  • Service: 19225599
  • Description: 58-Way Sealed (WH)
Terminal Part Information 
  • Pins: 1-6
  • Terminal/Tray: 1928498058/8
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)
  • Pins: 7-58
  • Terminal/Tray: 1928498135/19
  • 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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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.