Engine Control Module (ECM) X2 (LE5)

WARNING: This page is about a different car, the 2008 Saturn Aura. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Control Module (ECM) X2 (LE5) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1-3	-	-	Not Used
4	0.35 TN	2761	Low Reference
5	0.35 PU	574	Low Reference
6	0.5 TN	1744	Fuel Injector 1 Control
7	0.5 PK/BK	1746	Fuel Injector 3 Control
8	0.5 L-BU/BK	844	Fuel Injector 4 Control
9	0.5 BN	2129	Low Reference
10	0.5 1745	1745	Fuel Injector 2 Control
11-12	-	-	Not Used
13	0.35 GY	2704	5-Volt Reference
14	0.35 L-GN	5282	Camshaft Phaser Exhaust Solenoid - 1
15	0.35 PU	5284	Camshaft Phaser Intake Solenoid - 1
16	0.8 YE	581	TAC Motor Control - 1
17-19	-	-	Not Used
20	0.35 TN	5301	Camshaft Position Intake Sensor Low Reference - 1
21	0.35 GY	5296	Camshaft Position Exhaust Sensor Low Reference - 1
22	0.35 PU	2121	IC 1 Control
23	0.35 L-BU	2123	IC 3 Control
24	0.35 D-GN/WH	2124	IC 4 Control
25	-	-	Not Used
26	0.35 OG/WH	2122	IC 2 Control
27-29	-	-	Not Used
30	0.35 D-GN/WH	428	EVAP Canister Purge Solenoid Control
31	0.35 OG	225	Generator Turn on Signal
32	0.8 BN	582	TAC Motor Control - 2
33	0.35 D-BU	5300	Camshaft Position Intake Sensor Supply Voltage - 1
34	0.35 YE/BK	5297	Camshaft Position Exhaust Sensor Supply Voltage - 1
35-36	-	-	Not Used
37	0.5 PU/WH	3110	Heated Oxygen Sensor High Signal Bank 1 Sensor 1
38	0.5 PU	3120	Heated Oxygen Sensor High Signal Bank 1 Sensor 2
39	0.35 L-GN	432	MAP Sensor Signal
40	0.35 TN	2752	Throttle Position Sensor Low Reference
41	-	-	Not Used
42	0.35 TN	2760	Low Reference
43	0.35 GY	23	Generator Field Duty Cycle Signal
44	-	-	Not Used
45	0.35 YE	573	Crankshaft Position Sensor Signal 1
46	0.35 OG	5275	Camshaft Position Intake Sensor 1
47	0.35 D-GN	5273	Camshaft Position Exhaust Sensor 1
48	0.5 TN/WH	3111	Heated Oxygen Sensor Low signal Bank 1 Sensor 1
49	0.35 OG/BK	469	Low Reference
50	0.5 GY	1716	Knock Sensor Signal
51	0.5 D-BU	496	Knock Sensor Signal - 1
52	-	-	Not Used
53	0.35 GY	2701	5-Volt Reference
54	0.35 L-GN	2867	12-Volt Reference
55-56	-	-	Not Used
57	0.35 D-GN	485	TP Sensor 1 Signal
58	0.35 YE	410	ECT Sensor Signal
59	0.35 PU	486	TP Sensor 2 Signal
60	0.35 BN	6753	Low Reference
61	0.35 BN/WH	6754	Low Reference
62-64	-	-	Not Used
65	0.5 BK/WH	3113	HO2S Heater Low Control Bank 1 Sensor 1
66	0.5 BK/WH	3122	HO2S Heater Low Control Bank 2 Sensor 1
67	0.35 TN/BK	231	Oil Pressure Switch Signal
68	0.5 TN/WH	3121	HO2S Heater Low Control Bank 1 Sensor 2
69-72	-	-	Not Used
73	2 BK/WH	451	Signal Ground

Connector Part Information

OEM: 15497996
Service: 88988372
Description: 73-Way F Sealed (BK)

Terminal Part Information

Terminal/Tray: See Terminal Tray
Core/Insulation Crimp: See Terminal Tray
Release Tool/Test Probe: See Terminal Tray