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Engine Control Module (ECM) X2 (LY7)

Fig 1: Engine Control Module (ECM) X2 (LY7) Connector End View
GM1360604Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X2 (LY7)

Pin Wire Circuit Function
1 0.8 BK/WH 451 Ground
2 0.8 BK/WH 451 Ground
3 - - Not Used
4 0.8 BK/WH 451 Ground
5 1.0 PK/BK 5290 Ignition Voltage
6 - - Not Used
7 0.5 GY/WH 3122 HO2S Heater Low Control - Bank 2 Sensor 1
8 - - Not Used
9 0.5 TN 2759 Low Reference
10 0.5 D-GN/WH 465 Fuel Pump Relay Control
11 0.5 TN 5514 Low Reference
12 0.5 BN/WH 419 Malfunction Indicator Lamp (MIL) Control
13 0.5 YE 492 Mass Air Flow (MAF) Sensor Signal
14 0.5 GY 2709 5-Volt Reference 1
15 0.5 D-BU 1161 Accelerator Pedal Position (APP) Sensor 1 Signal
16 - - Not Used
17 0.5 OG/BK 1786 Park/Neutral Signal
18 - - Not Used
19 0.8 WH 1310 EVAP Canister Vent Solenoid Control
20 0.5 OG/WH 3223 HO2S Heater Low Control Bank 2 Sensor 2
21 - - Not Used
22 0.5 TN 2760 Low Reference
23 0.5 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2
24 0.5 TN 1671 HO2S Low Signal - Bank 2 Sensor 2
25 0.5 L-BU 1162 Accelerator Pedal Position (APP) Sensor 2 Signal
26 - - Not Used
27 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal
28-33 - - Not Used
34 0.5 BN 1271 Low Reference
35 0.5 GY 2700 5-Volt Reference 3
36 0.5 PU 1589 Fuel Level Sensor Signal
37 - - Not Used
38 0.5 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2
39 0.5 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
40 - - Not Used
41 0.5 BN 4 Ignition Voltage
42 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+
43 - - Not Used
44 0.5 D-GN/WH 459 A/C Compressor Clutch Relay Control
45 0.5 D-BU 473 High Speed Cooling Fan Relay Control
46 0.5 D-GN 335 Low Speed Cooling Fan Relay Control
47 0.5 PU 1272 Low Reference
48 0.5 TN 1274 5-Volt Reference 3
49 0.5 WH/BK 1164 5-Volt Reference 2
50 0.5 TN 472 IAT Sensor Signal
51 0.5 PU 1670 HO2S High Signal - Bank 2 Sensor 2
52 0.5 WH 17 Stop Lamp Switch Signal
53 - - Not Used
54 0.5 PK 439 Ignition Voltage
55 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
56 0.5 RD/WH 1540 Battery Positive Voltage
57 0.5 YE 447 Starter Relay Coil Control
58 0.5 BN 5069 Engine Main Relay Coil Control
Connector Part Information 
  • OEM: 1928404916
  • Service: 19115599
  • Description: 58-Way F 2.8 Series Sealed (BK)
Terminal Part Information 
  • Pins: 1-2, 4-5
  • Terminal/Tray: 1928498058/8
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: J-38125-561/J-35616-4A (PU)
  • Pins: 7, 9, 10-15, 17, 19-20, 22-25, 27, 34-36, 38-39, 41-42, 44-52, 54-58
  • Terminal/Tray: 1928498135/19
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
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