Engine Control Module (ECM) Connector End View - C2

Fig 1: Engine Control Module (ECM) - C2 Connector End View

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) - C2 Connector Parts Information

Connector Part Information

OEM: 15499466
Service: 88988360
Description: 73-Way F 0.64 2.8 Series, Sealed (BK)

Terminal Part Information

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

Engine Control Module (ECM) - C2 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	PU	2121	IC1 Control
2	TN/WH	3111	H02S Low Reference Bank 1 Sensor 1
3	PU/WH	3110	HO2S Reference Voltage Bank 1 Sensor 1
4	PU	3120	H02S High Signal Bank 1 Sensor 2
5	TN/WH	3121	H02S Low Signal Bank 1 Sensor 2
6	L-BU	1876	Knock Sensor 2 Signal
7	GY	2303	Knock Sensor 2 Signal
8	D-BU	496	Knock Sensor 1 Signal
9	GY	1716	Knock Sensor 1 Signal
10	-	-	Not Used
11	YE	581	TAC Motor Control - 1
12	BN	582	TAC Motor Control - 2
13	PK	439	Ignition 1 Voltage
14	PK/BK	6395	CMP Actuator Solenoid Control Bank 1 Intake
15	TN/BK	6397	CMP Actuator Solenoid Control Bank 2 Intake
16	D-BU/WH	878	Fuel Injector 8 Control
17	OG/WH	2122	IC 2 Control
18	L-BU/WH	2126	IC 6 Control
19	BN/WH	2130	Low Reference
20	PU	6267	Low Reference
21	TN	6268	Low Reference
22	WH	6269	Low Reference
23	BN	6266	Low Reference
24	BK	2755	Low Reference
25	D-GN	7125	Low Reference
26	-	-	Not Used
27	GY/BK	6272	Low Reference
28	PK	439	Ignition 1 Voltage
29	TN	2752	Low Reference
30	BN/WH	6754	Low Reference
31	D-BU/WH	6756	Low Reference
32	PK/BK	1746	Fuel Injector 3 Control
33	OG	2127	IC 7 Control
34	D-GN	2125	IC 5 Control
35	BN	2129	Low Reference
36	D-GN	6457	5-Volt Reference - 1
37	OG	6260	5-Volt Reference - 1
38	PK	6261	5-Volt Reference - 1
39	D-BU	6259	5-Volt Reference - 1
40	GY	2705	5-Volt Reference - 1
41	YE/BK	7124	5-Volt Reference - 1
42	TN	2760	Low Reference
43	PU/WH	6270	5-Volt Reference - 2
44	GY	2701	5-Volt Reference - 2
45	BN	6273	Low Reference
46	BN	6753	Low Reference
47	D-BU	6755	Low Reference
48	L-GN/BK	1745	Fuel Injector 2 Control
49	TN/WH	845	Fuel Injector 5 Control
50	BK/WH	6396	CMP Actuator Solenoid Control Bank 1 Exhaust
51	GY/BK	6394	CMP Actuator Solenoid Control Bank 2 Exhaust
52	L-BU/BK	844	Fuel Injector 4 Control
53	L-BU	2123	IC 3 Control
54	D-GN/WH	2124	IC 4 Control
55	PU/WH	2128	IC 8 Control
56	D-GN/WH	6264	CMP Sensor Signal Bank 1 Exhaust
57	OG/BK	6263	CMP Sensor Signal Bank 2 Intake
58	PK/BK	6262	CMP Sensor Signal Bank 2 Exhaust
59	D-BU/WH	6265	CMP Sensor Signal Bank 1 Intake
60	TN/WH	331	Oil Pressure Sensor Signal
61	-	-	Not Used
62	TN/BK	472	IAT Sensor Signal
63	WH/BK	6271	CKP Sensor Signal
64	D-GN	485	TP Sensor 1 Signal
65	D-GN/WH	357	Engine Oil Temperature Sensor
66	PU	486	TP Sensor 2 Signal
67	YE	492	MAF Sensor Signal
68	GY/WH	3113	H02S Heater Low Control Bank 1 Sensor 1
69	GY/WH	3122	H02S Heater Low Control Bank 1 Sensor 2
70	YE/BK	846	Fuel Injector 6 Control
71	OG/BK	877	Fuel Injector 7 Control
72	TN	1744	Fuel Injector 1 Control
73	BK/WH	451	Ground