Engine Control Module (ECM) X2 (LAT)

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 (LAT) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.35 PU	2121	IC 1 Control
2	0.5 TN/WH	3111	HO2S Low Signal (Sensor 1)
3	0.5 PU/WH	3110	HO2S High Signal (Sensor 1)
4	0.5 PU	3120	HO2S High Signal (Sensor 2)
5	0.5 TN/WH	3121	HO2S Low Signal (Sensor 2)
6-7	-	-	Not Used
8	0.5 D-BU	496	KS Signal
9	0.5 GY	1716	KS Signal
10	-	-	Not Used
11	0.8 YE	581	TAC Motor Control - 1
12	0.8 BN	582	TAC Motor Control - 2
13	0.8 PK/BK	5290	Ignition 1 Voltage
14	0.35 PK/BK	6395	CMP Control
15-16	-	-	Not Used
17	0.35 L-BU	2123	IC 3 Control
18-19	-	-	Not Used
20	0.35 GY	5296	Low Reference
21-22	-	-	Not Used
23	0.35 TN	5301	Low Reference
24	0.35 TN	2759	Low Reference
25-26	-	-	Not Used
27	0.35 PU	574	Low Reference
28	-	-	Not Used
29	0.35 TN	2752	Low Reference
30	0.35 L-GN	5282	Low Reference
31	-	-	Not Used
32	0.5 L-GN/BK	1745	Fuel Injector 2 Control
33	0.35 D-GN/WH	2124	IC 4 Control
34	-	-	Not Used
35	0.35 BN	2129	Low Reference
36	0.35 YE/BK	5297	5-Volt Reference
37-38	-	-	Not Used
39	0.35 D-BU	5300	5-Volt Reference 1
40-41	-	-	Not Used
42	0.35 TN/BK	2760	Low Reference
43	0.35 L-GN	2867	5-Volt Reference
44	0.35 GY	2701	5-Volt Reference 2
45	-	-	Not Used
46	0.35 PU	5284	Low Reference
47	-	-	Not Used
48	0.5 PK/BK	1746	Fuel Injector 3 Control
49	-	-	Not Used
50	0.35 WH/BK	6396	CMP Control
51-52	-	-	Not Used
53	0.35 OG/WH	2122	IC 2 Control
54-55	-	-	Not Used
56	0.35 D-GN	5273	CMP Sensor Signal
57-58	-	-	Not Used
59	0.35 OG	5275	CMP Sensor Signal
60-61	-	-	Not Used
62	0.35 TN	472	IAT Sensor Signal
63	0.35 YE	573	CKP Sensor 1 Signal
64	0.35 D-GN	485	TP Sensor 1 Signal
65	-	-	Not Used
66	0.35 PU	486	TP Sensor 2 Signal
67	0.35 YE	492	MAF Sensor Signal
68	0.5 GY/WH	3113	HO2S Heater Low Control Sensor 1
69	0.5 GY/WH	3122	HO2S Heater Low Control Sensor 2
70	-	-	Not Used
71	0.5 L-BU/BK	844	Fuel Injector 4 Control
72	0.5 TN	1744	Fuel Injector 1 Control
73	2 BK/WH	451	Ground

Connector Part Information

OEM: 13588080
Service: See Catalog
Description: 73-Way F Sealed (BK)

Terminal Part Information

Pins: 73
Terminal/Tray: 7116-4152-02/9
Core/Insulation Crimp: 2/5
Release Tool/Test Probe: 12094430/J-35616-35 (VT)

Pins: 1, 14, 17, 20, 23, 24, 27, 29, 30, 33, 35, 36, 39, 42, 43, 44, 46, 50, 53, 56, 59, 62, 63, 64, 66, 67, 2, 3, 8, 12, 13, 16, 21, 22, 24, 32, 33, 34, 35, 41, 43, 44, 50, 52, 53, 58, 61, 63, 64, 65, 66, 68, 69, 70, 71, 72, 78
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: Pins 1, 14, 17, 20, 23, 24, 27, 29, 30, 33, 35, 36, 39, 42, 43, 44, 46, 50, 53, 56, 59, 62, 63, 64, 66, 67 - H/H
Core/Insulation Crimp: Pins 2, 3, 8, 12, 13, 16, 21, 22, 24, 32, 33, 34, 35, 41, 43, 44, 50, 52, 53, 58, 61, 63, 64, 65, 66, 68, 69, 70, 71, 72, 78 - H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)