Engine Control Module (ECM) X2 (LY7)

WARNING: This page is about a different car, the 2008 Suzuki XL7, 2008 Pontiac Torrent, and 2008 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Control Module (ECM) X2 (LY7) Connector End View

Courtesy of GENERAL MOTORS CORP.

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	Heated Oxygen Sensor 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 Control
13	0.5 YE	492	Mass Air Flow Sensor Signal
14	0.5 GY	2709	5-Volt Reference
15	0.5 D-BU	1161	Accelerator Pedal Position 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	Heated Oxygen Sensor Heater Low Control Bank 2 Sensor (2)
21	-	-	Not Used
22	0.5 TN	2760	Low Reference
23	0.5 TN/WH	1669	Heated Oxygen Sensor Low Signal - Bank 1 Sensor 2
24	0.5 TN	1671	Heated Oxygen Sensor Low Signal - Bank 2 Sensor 2
25	0.5 L-BU	1162	Accelerator Pedal Position 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
36	0.5 PU	1589	Fuel Level Sensor Signal
37	-	-	Not Used
38	0.5 PU/WH	1668	Heated Oxygen Sensor 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	Accessory 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
49	0.5 WH/BK	1164	5-Volt Reference
50	0.5 TN	472	Intake Air Temperature Sensor Signal
51	0.5 PU	1670	Heated Oxygen Sensor 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)