Engine Control Module (ECM) C2

Fig 1: Connector End Views

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) Connector End Views

Connector Part Information

OEM: 13551267
Service: 88953274
Description: 73-Way F GT 280 Micro-Pack 0.64 Series, Sealed (BK)

Terminal Part Information

Pins: 2 - 72
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64A (L-BU)

Pins: 73
Terminal/Tray: 15304720/19
Core/Insulation Crimp: 4/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Engine Control Module (ECM) C2

Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	GY	3113	HO2S Heater Low Control [- Bank 1 Sensor 1]
3	-	-	Not Used
4	D-BU/WH	878	Fuel Injector 8 Control
5	TN	1744	Fuel Injector 1 Control
6	L-GN/BK	1745	Fuel Injector 2 Control
7	OG/BK	877	Fuel Injector 7 Control
8	L-BU/BK	844	Fuel Injector 4 Control
9	PK/BK	1746	Fuel Injector 3 Control
10	TN/WH	845	Fuel Injector 5 Control
11-12	-	-	Not Used
13	YE/BK	846	Fuel Injector 6 Control
14	YE/BK	1868	Low Reference
15	PK/BK	632	Low Reference
16	BN	2129	Low Reference
17	OG	5494	Cylinder Shutoff Solenoid Control 4
18	TN	5496	Cylinder Shutoff Solenoid Control 3
19	-	-	Not Used
20	OG/BK	469	Low Reference
21	BK	2755	Low Reference
22	YE	447	Starter Relay Coil Control
23	-	-	Not Used
24	TN/WH	331	Oil Pressure Sensor Signal
25	-	-	Not Used
26	BN/WH	633	CMP Sensor Signal
27	BN	1174	Oil Level Switch Signal
28	-	-	Not Used
29	PU	486	TP Sensor 2 Signal
30	-	-	Not Used
31	D-GN	485	TP Sensor 1 Signal
32	-	-	Not Used
33	D-BU	5491	Cylinder Shutoff Solenoid Control 1
34	WH	5497	Cylinder Shutoff Solenoid Control 2
35	GY	2704	5-Volt Reference
36	TN	2752	Low Reference
37	GY	2705	5-Volt Reference
38	-	-	Not Used
39	L-BU/BK	6297	Low Reference
40	L-BU	6295	5-Volt Reference 2
41	GY	2701	5-Volt Reference
42	-	-	Not Used
43	L-GN	1867	12-Volt Reference
44	OG	631	12-Volt Reference
45	GY	23	Generator Field Duty Cycle Signal
46	L-GN	432	MAP Sensor Signal
47	-	-	Not Used
48	PU/WH	1665	HO2S High Signal [- Bank 1 Sensor 1]
49	TN	1664	HO2S Low Signal [- Bank 1 Sensor 1]
50	D-GN/WH	428	EVAP Canister Purge Solenoid Control
51	-	-	Not Used
52	TN	2761	Low Reference
53	OG	2127	IC 7 Control
54	PU	2121	IC 1 Control
55	YE	410	ECT Sensor Signal
56	OG	225	Generator Turn On Signal
57	L-BU/WH	2126	IC 6 Control
58	D-GN/WH	2124	IC 4 Control
59	D-GN	2125	IC 5 Control
60	BN	582	TAC Motor Control - 2
61	L-BU	2123	IC 3 Control
62	D-BU/WH	1869	CKP Sensor Signal
63	YE	581	TAC Motor Control - 1
64	BN/WH	2130	Low Reference
65	PU/WH	2128	IC 8 Control
66	OG/WH	2122	IC 2 Control
67	-	-	Not Used
68	D-BU	496	Knock Sensor [1] Signal
69	GY	1716	Low Reference
70	-	-	Not Used
71	GY	2303	Low Reference
72	L-BU	1876	Knock Sensor 2 Signal
73	BK/WH	451	Ground