Engine Control Module (ECM) C1

Fig 1: Connector End View

Courtesy of GENERAL MOTORS CORP.

Engine Control Module Connector End Views

Connector Part Information

OEM: 1 928 403 379
Service: See Catalog
Description: 64-Way F (BK)

Terminal Part Information

Pins: 1, 3- 5, 7- 10, 12, 13, 15-17, 19- 21, 23, 25, 26, 29- 31, 33, 35-43, 45- 50, 52- 59, 62-64
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) C1

Pin	Wire Color	Circuit No.	Function
1	TN	407	Knock Sensor 2 Signal
2	-	-	Not Used
3	L-GN	5278	HO2S Input Pump Current Sensor 1
4	OG	5275	CMP Sensor Signal - Intake Bank 1
5	GY	605	5-Volt Reference 1
6	-	-	Not Used
7	TN	470	Low Reference
8	PU	486	TP Sensor 2 Signal
9	D-GN/WH	2124	Ignition Control 4
10	WH/BK	5039	CKP Sensor Signal
11	-	-	Not Used
12	OG/BK	5272	CMP Actuator Solenoid Control - Intake Bank 2
13	L-GN	5282	CMP Actuator Solenoid Control - Exhaust Bank 1
14	-	-	Not Used
15	BN	582	TAC Motor Control - 2
16	GY/WH	3113	HO2S Heater Low Control Sensor 1
17	GY	1716	Knock Sensor 1 Signal
18	-	-	Not Used
19	PU/WH	1665	HO2S High Signal
20	D- GN	5273	CMP Sensor Signal - Exhaust Bank 1
21	GY	23	Generator Field Duty Cycle Signal
22	-	-	Not Used
23	YE	410	ECT Sensor Signal
24	-	-	Not Used
25	L-BU/WH	2126	Ignition Control 6
26	OG/WH	2122	Ignition Control 2
27-28	-	-	Not Used
29	PU	5284	Actuator Solenoid Control - Intake Bank 1
30	WH/BK	5283	Actuator Solenoid Control - Exhaust Bank 2
31	YE	581	TAC Motor Control - 1
32	-	-	Not Used
33	D-BU	496	Knock Sensor 1 Signal
34	-	-	Not Used
35	WH	5279	HO2S Pump Current
36	PU	5274	CMP Sensor Signal - Exhaust Bank 2
37-38	-	-	Not Used
39	TN	2752	Low Reference
40	TN/BK	231	Engine Oil Pressure Switch Signal
41	D-GN	2125	Ignition Control 5
42	PU	2121	Ignition Control 1
43	OG	225	Generator Turn On Signal
44	-	-	Not Used
45	L-BU/BK	844	Fuel Injector 4 Control
46	PK/BK	1746	Fuel Injector 3 Control
47	TN/WH	845	Fuel Injector 5 Control
48	D-GN/WH	428	EVAP Canister Purge Solenoid Valve Control
49	GY/BK	1798	Ground
50	L-BU	1876	Knock Sensor 2 Signal
51	-	-	Not Used
52	TN	1664	HO2S Low Signal
53	YE	5276	CMP Sensor Signal Intake Bank 2
54	GY	2701	5-Volt Reference
55	D-GN	485	TP Sensor 1 Signal
56	L-GN/BK	5266	MAP Sensor Signal
57	GY	705	5-Volt Reference 2
58	L-BU	2123	Ignition Control 3
59	PU/WH	5024	Low Reference
60-61	-	-	Not Used
62	L-GN/BK	1745	Fuel Injector 2 Control
63	TN	1744	Fuel Injector 1 Control
64	YE/BK	846	Fuel Injector 6 Control