Engine Control Module (ECM) X1 (LNJ)

WARNING: This page is about a different car, the 2009 Suzuki XL7, 2009 Pontiac Torrent, and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Control Module (ECM) X1 (LNJ) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.5 OG/BK	1786	Park/Neutral Signal
2-8	-	-	Not Used
9	0.5 WH	17	Stop Lamp Switch Signal
10	0.5 PU/WH	1668	HO2S High Signal - Bank 1 Sensor 2
11	0.5 TN/WH	1669	HO2S Low Signal - Bank 1 Sensor 2
12	0.5 OG/BK	380	A/C Refrigerant Pressure Sensor Signal
13	0.5 TN	5514	Low Reference
14-15	-	-	Not Used
16	0.5 PU	1589	Fuel Level Sensor Signal
17	0.5 D-BU	473	High Speed Cooling Fan Relay Control
18	0.5 BN	4	Ignition Voltage
19	0.5 PK	439	Ignition Voltage
20	0.5 RD/WH	1540	Battery Positive Voltage
21-22	-	-	Not Used
23	0.5 PU	1272	Low Reference
24	0.5 D-GN	890	Fuel Tank Pressure Sensor Signal
25-26	-	-	Not Used
27	0.5 TN	2501	High Speed GMLAN Serial Data Bus (-)
28	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus (+)
29	0.5 D-BU	1161	Accelerator Pedal Position (APP) Sensor 1 Signal
30	0.5 BN	1271	Low Reference
31	0.5 TN	2759	Low Reference
32	0.5 L-BU	1162	Accelerator Pedal Position (APP) Sensor 2 Signal
33	0.5 GY	2709	5-Volt Reference 1
34	0.5 GY	2700	5-Volt Reference 1
35	-	-	Not Used
36	0.5 TN	1274	5-Volt Reference 1
37	0.5 TN	472	IAT Sensor Signal
38	0.5 TN	2760	Low Reference
39-40	-	-	Not Used
41	0.5 YE	492	Mass Air Flow (MAF) Sensor Signal
42-46	-	-	Not Used
47	0.5 PK/BK	5290	Ignition Voltage
48-49	-	-	Not Used
50	0.5 D-GN/WH	465	Fuel Pump Relay Control
51	-	-	Not Used
52	0.5 YE	447	Starter Relay Coil Control
53-55	-	-	Not Used
56	0.5 WH/BK	1164	5-Volt Reference 2
57	-	-	Not Used
58	0.5 D-GN	335	Low Speed Cooling Fan Relay Control
59	0.5 BN	5069	Main Relay Control
60	-	-	Not Used
61	0.5 WH	1310	EVAP Canister Vent Solenoid Control
62	-	-	Not Used
63	0.5 D-GN/WH	459	A/C Compressor Clutch Relay Control
64	-	-	Not Used
65	0.5 GY/WH	3122	HO2S 2 Heater Low Control
66-67	-	-	Not Used
68	0.5 BN/WH	419	Malfunction Indicator Lamp (MIL) Control
69-72	-	-	Not Used
73	0.8 BK/WH	451	Ground

Connector Part Information

OEM: 12582677
Service: 88988931
Description: 73-Way F Receptacle 0.64 2.8 Sealed (BK)

Terminal Part Information

Pins: 1, 9-13, 16-20, 23-24, 27-34, 36-38, 41, 47, 50, 52, 56, 58-59, 61, 63, 65, 68
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: J/J
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 73
Terminal/Tray: 7116-4151-02/9
Core/Insulation Crimp: E/1
Release Tool/Test Probe: 12094430/J-35616-4A (PU)