Engine Control Module (ECM) - C2 (4.4L) - Connector End View

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

Courtesy of GENERAL MOTORS CORP.

Engine Control Module Connector End Views

Connector Part Information

OEM: 34566-0103
Service: 88988903
Description: 73-Way F Micro-Pack GT 64 (BK)

Terminal Part Information

Pins: 73
Terminal/Tray: 7116-4152-02/9
Core/Insulation Crimp: 2/5
Release Tool/Test Probe: 12094430/J-35616-35 (VT)

Pins: 13, 28, 45, 65
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 66, 67, 68, 69, 70, 71, 72, 11, 12
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: Pins 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 66, 67, 68, 69, 70, 71, 72 - J/J
Core/Insulation Crimp: Pins 11, 12 - K/K
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Engine Control Module (ECM) - C2

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	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	Low Reference
8	D-BU	496	Knock Sensor (1) Signal
9	GY	1716	Low Reference
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	CAM Phase #2 Control
15	TN/BK	6397	CAM Phase #4 Control
16	D-BU/WH	878	Fuel Inspector #8 Control
17	OG/WH	2122	IC2 Control
18	L-BU/WH	2126	IC6 Control
19	BN/WH	2130	Low Reference
20	PU	6267	Camshaft CAM X Ground
21	TN	6268	Camshaft CAM Y Ground
22	WH	6269	Camshaft CAM Z Ground
23	BN	6266	Camshaft CAM W Ground
24	BK	2755	Oil Pressure Sensor Low Reference
25	D-GN	7125	Super Charger Inlet Air Pressure Sensor Return
26	-	-	Not Used
27	GY/BK	6272	Crankshaft 60 X Sensor Low Reference
28	PK	439	Ignition 1 Voltage
29	TN	2752	Low Reference
30	BN/WH	6754	CAM Phase X Return Low Reference
31	D-BU/WH	6756	CAM Phase Z Return Low Reference
32	PK/BK	1746	Fuel Injector 3 Control
33	OG	2127	IC7 Control
34	D-GN	2125	IC5 Control
35	BN	2129	Low Reference
36	D-GN	6457	Camshaft CAM X Supply Voltage
37	OG	6260	Camshaft CAM Y Supply Voltage
38	PK	6261	Camshaft CAM Z Supply Voltage
39	D-BU	6259	Camshaft CAM W Supply Voltage
40	GY	2705	5-Volt Reference
41	YE/BK	7124	Super Charger Inlet Air Pressure Sensor Supply Voltage 5V
42	TN	2760	Low Reference
43	PU/WH	6270	Crankshaft Box Sensor Voltage
44	GY	2701	5-Volt Reference
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	WH/BK	6396	CAM Phase #3 Control
51	GY/BK	6394	CAM Phase Control
52	L-BU/BK	844	Fuel Injector 4 Control
53	L-BU	2123	IC3 Control
54	D-GN/WH	2124	IC4 Control
55	PU/WH	2128	IC8 Control
56	D-GN/WH	6264	Camshaft CAM X Signal
57	OG/BK	6263	Camshaft CAM Y Signal
58	PK/BK	6262	Camshaft CAM Z Signal
59	D-BU/WH	6265	Camshaft CAM W Signal
60	TN/WH	331	Oil Pressure Sensor Signal
61	-	-	Not Used
62	TN/BK	472	IAT Sensor Signal
63	WH/BK	6271	Crankshaft 60 X Sensor Signal
64	D-GN	485	TP Sensor 1 Signal
65	D-GN/WH	357	Blower Motor High Control
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 2 Sensor 1)
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