Engine Control Module (ECM) X2 (L61)

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

Fig 1: Engine Control Module (ECM) X2 (L61) 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	0.35 TN	1744	Fuel Injector 1 Control
7	0.35 PK/BK	1746	Fuel Injector 3 Control
8	L-BU/BK	844	Fuel Injector 4 Control
9	0.35 BN	2129	Low Reference
10	L-GN/BK	1745	Fuel Injector 2 Control
11-12	-	-	Not Used
13	0.35 GY	2704	5-Volt Reference 1
14-15	-	-	Not Used
16	0.35 YE	581	TAC Motor Control - 1
17-19	-	-	Not Used
20	0.35 TN	5301	Low Reference
21	-	-	Not Used
22	0.35 PU	2121	IC 1 Control
23	L-BU	2123	IC 3 Control
24	D-GN/WH	2124	IC 4 Control
25	-	-	Not Used
26	0.35 OG/WH	2122	IC 2 Control
27-29	-	-	Not Used
30	D-GN/WH	428	EVAP Canister Purge Solenoid Control
31	0.35 OG	225	Generator Turn On Signal
32	0.35 BN	582	TAC Motor Control - 2
33	D-BU	5300	5-Volt Reference 1
34-36	-	-	Not Used
37	0.5 PU/WH	3110	HO2S High Signal (Sensor 1)
38	0.5 PU	3120	HO2S High Signal (Sensor 2)
39	L-GN	432	MAP Sensor Signal
40	0.35 TN	2752	Low Reference
41	-	-	Not Used
42	0.35 TN/BK	2760	Low Reference
43	0.35 GY	23	Generator Field Duty Cycle Signal
44	-	-	Not Used
45	0.35 YE	573	CKP Sensor Signal
46	0.35 OG	5275	CMP Sensor Signal
47	-	-	Not Used
48	0.5 TN/WH	3111	HO2S Low Signal (Sensor 1)
49	0.35 OG/BK	469	Low Reference
50	0.35 GY	1716	KS Signal
51	D-BU	496	KS Signal
52	-	-	Not Used
53	0.35 GY	2701	5-Volt Reference 2
54	0.35 L-GN	2867	5-Volt Reference 2
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
60-64	-	-	Not Used
65	0.5 GY/WH	3113	HO2S Heater Low Control (Sensor 1)
66	0.5 GY/WH	3122	HO2S Heater Low Control (Sensor 2)
67	0.35 TN/BK	231	Oil Pressure Switch Signal
68	0.5 TN/WH	3121	HO2S Low Signal (Sensor 2)
69-72	-	-	Not Used
73	2 BK/WH	451	Ground

Connector Part Information

OEM: 13589571
Service: See Catalog
Description: 73-Way F Receptacle 0.64 2.8 Sealed (GY)

Terminal Part Information

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