LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2008 >> Allure CX >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Electrical Component Locations >> Component Locations & Component Connector End Views >> Component Connector End Views >> Engine Control Module (ECM) X2 (LY7)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Control Module (ECM) X2 (LY7)

Fig 1: Engine Control Module (ECM) X2 (LY7) Connector End View
GM1522872Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X2 (LY7)

Pin Wire Circuit Function
1 0.5 PK 39 Ignition 1 Voltage
2 0.8 BK/WH 3122 HO2S Heater Low Control Sensor 2
3 0.5 PK 439 Ignition 1 Voltage
4 0.5 D-BU 473 High Speed Cooling Fan Relay Control
5 0.35 WH 121 Engine Speed Signal
6 - - Not Used
7 0.5 WH/BK 1164 5-Volt Reference 2
8 0.5 PU 1272 Low Reference
9 0.5 RD/BK 380 A/C Refrigerant Pressure Sensor Signal
10 0.5 WH 17 Stop Lamp Switch Signal
11 0.5 TN 472 IAT Sensor Signal
12 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal
13-14 - - Not Used
15 0.35 OG/BK 463 Requested Torque Signal
16 - - Not Used
17 0.5 PK 39 Ignition 1 Voltage
18 - - Not Used
19 0.35 D-GN/WH 465 Fuel Pump Relay Control
20 0.5 D-GN 335 Low Speed Cooling Fan Relay Control
21 - - Not Used
22 0.5 D-GN 389 Vehicle Speed Signal
23 0.5 D-BU 6105 High Speed GMLAN Serial Data Bus +
24 0.5 BN 5069 Main Relay Control
25 0.5 BK 2759 Low Reference
26 0.5 BK 2760 Low Reference
27-28 - - Not Used
29 0.5 PU 3120 HO2S High Signal
30-31 - - Not Used
32 0.5 OG/BK 1786 Park/Neutral Signal
33 0.8 WH 1310 EVAP Canister Vent Solenoid Control
34 - - Not Used
35 0.5 YE/BK 625 Starter Enable Relay Control
36 0.5 OG 540 Battery Positive Voltage
37 0.35 TN/BK 464 Delivered Torque Signal
38 - - Not Used
39 0.5 GY 2709 5-Volt Reference 2
40 0.5 BN 1271 Low Reference
41 - - Not Used
42 0.5 PU 1589 Fuel Level Sensor Signal
43 0.5 YE 492 MAF Sensor Signal
44 0.5 L-BU 1162 APP Sensor 2 Signal
45-47 - - Not Used
48 0.5 D-GN 1049 ECM Class 2 Serial Data
49 0.5 D-GN/WH 459 A/C Compressor Clutch Relay Control
50 0.5 BN/WH 419 MIL Control
51-54 - - Not Used
55 0.5 L-BU 6106 High Speed GMLAN Serial Data Bus -
56 0.5 TN 1274 5-Volt Reference 1
57 0.5 TN/WH 3121 HO2S Low Signal
58 0.5 BN 1141 Ignition 3 Voltage
59 0.5 GY 1884 Cruise Control Set/Coast and Resume/Accelerate Switch Signal
60 0.5 D-BU 1161 APP Sensor 1 Signal
61-64 - - Not Used
Connector Part Information 
  • OEM: 1 928 403 514
  • Service: See Catalog
  • Description: 64-Way F (BK)
Terminal Part Information 
  • Pins: 1- 5, 7-12, 15, 17, 19, 20, 22-26, 29, 32, 33, 35- 37, 39, 40, 42-44, 48-50, 55-60
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
scientia non olet · About LEMON Manuals