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Engine Control Module (ECM) C2

Fig 1: ECM C2 Connector

GM1590592

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) Connector End Views

Connector Part Information

OEM: 34566-2903
Service: See Catalog
Description: TBD

Terminal Part Information

Terminal/Tray: TBD
Core/Insulation Crimp: TBD
Release Tool/Test Probe: TBD

Engine Control Module (ECM) C2

Pin	Wire Color	Circuit No.	Function
1	PU/BK	2121	IC 1 Control
2	TN/OG	3111	HO2S Low Reference (Bank 1 Sensor 1)
3	D-GN	3110	HO2S Reference Voltage (Bank 1 Sensor 1)
3	TN/WH	3211	HO2S Low Reference (Bank 2 Sensor 1)
4	PK/OG	3120	HO2S High Signal (Bank 1 Sensor 2)
5	TN/PK	3121	HO2S Low Signal (Bank 1 Sensor 2)
6	PK/YE	1876	Knock Sensor 2 Signal
7	GY	2303	Low Reference
8	D-BU	496	Knock Sensor [1] Signal
9	WH/GY	1716	Low Reference
11	YE	581	TAC Motor Control - 1
12	OG/PK	582	TAC Motor Control - 2
13	PK/BK	5290	Ignition 1 Voltage
16	RD/BK	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
23	BN	6266	Camshaft CAM W Ground
25	TN/D-GN	2753	Low Reference
27	GY/BK	6272	Crankshaft 60X Sensor Low Reference
29	RD/YE	2752	Low Reference
31	GY	435	EGR Solenoid Low Control or EGR Solenoid Control
32	PK	1746	Fuel Injector 3 Control
33	OG	2127	IC 7 Control
34	D-GN	2125	IC 5 Control
35	BN	2129	Low Reference
39	PK/WH	6259	Camshaft CAM W Supply Voltage
41	PK/TN	2702	5-Volt Reference
42	TN/D-BU	2760	Low Reference
43	RD/GY	6270	Crankshaft 60X Sensor Voltage
44	PK/RD	2701	5-Volt Reference
48	L-GN/BK	1745	Fuel Injector 2 Control
49	TN/WH	845	Fuel Injector 5 Control
51	RD/L-BU	1676	EGR Solenoid High Control
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
59	D-BU/WH	6265	Camshaft CAM W Signal
61	L-GN/RD	1456	EGR Valve Position Signal
62	TN	472	IAT Sensor Signal
63	WH/BK	6271	Crankshaft 60X Sensor Signal
64	D-GN	485	TP Sensor 1 Signal
66	PU	486	TP Sensor 2 Signal
67	TN/YE	492	MAF Sensor Signal
68	WH	3113	HO2S Heater Low Control [- Bank 1 Sensor 1]
69	GY/WH	3122	HO2S Heater Low Control [- Bank 2 Sensor 1]
70	YE/BK	846	Fuel Injector 6 Control
71	OG/BK	877	Fuel Injector 7 Control
72	TN/BK	1744	Fuel Injector 1 Control
73	BK/WH	1551	Ground