Engine Control Module (ECM) C2

Fig 1: ECM C2 Connector

Courtesy of GENERAL MOTORS CORP.

Engine Control Module Connector End Views

Connector Part Information

OEM: 15418475
Service: 88953274
Description: 73-Way F 108-A (BK)

Terminal Part Information

Pins: 3, 4, 8, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 54, 55, 58, 59, 60, 61, 62, 63, 64, 65, 68, 69, 71
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (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
1-2	-	-	Not Used
3	D-GN	485	TP Sensor 1 Signal
4	PU	486	TP Sensor 2 Signal
5-7	-	-	Not Used
8	L-GN	432	MAP Sensor Signal
9	-	-	Not Used
10	YE	573	Crankshaft Position Sensor Signal (1)
11	L-BU	1876	Knock Sensor Signal (2)
12	GY	23	Generator Field Duty Cycle Signal
13	GY	1716	Knock Sensor Low Reference (1)
14	L-GN	5282	Camshaft Phaser Exhaust Solenoid (1)
15-16	-	-	Not Used
17	TN	1744	Fuel Injector 1 Control
18	L-GN/BK	1745	Fuel Injector 2 Control
19	D-BU	496	Knock Sensor 1 Signal
20	PK/BK	1746	Fuel Injector 3 Control
21	OG/BK	877	Fuel Injector 7 Control
22	TN/WH	845	Fuel Injector 5 Control
23	YE/BK	846	Fuel Injector 6 Control
24	D-BU/WH	878	Fuel Injector 8 Control
25	D-GN	5273	Camshaft Position Exhaust Sensor (1)
26	-	-	Not Used
27	BN/WH	5303	Camshaft Position Intake Sensor Low Reference (2)
28	GY	2303	Knock Sensor Low Reference (2)
29	PU	5284	Camshaft Phaser Intake Solenoid (1)
30	L-BU/BK	844	Fuel Injector Control (4)
31	OG/BK	5272	Camshaft Phaser Intake Solenoid (2)
32	OG	5275	Camshaft Position Intake Sensor (1)
33	D-BU	5300	Camshaft Position Intake Sensor Supply Voltage (1)
34	WH/BK	5283	Camshaft Phaser Exhaust Solenoid (2)
35	TN	5301	Camshaft Position Intake Sensor Low Reference (1)
36	OG/BK	469	Low Reference
37	TN	2752	Low Reference
38	TN	2761	Low Reference
39	BN/WH	2130	Low Reference
40	L-BU	5302	Camshaft Position Intake Sensor Supply Voltage (2)
41	PU	574	Low Reference
42	BN	2129	Low Reference
43	PU	5274	Camshaft Position Exhaust Sensor (2)
44	BN	582	TAC Motor Control - 2
45	GY	5296	Camshaft Position Exhaust Sensor Low Reference (1)
46	L-GN	5298	Camshaft Position Exhaust Sensor Supply Voltage (2)
47	BN	5299	Camshaft Position Exhaust Sensor Low Reference (2)
48	YE	581	TAC Motor Control - 1
49	YE	5276	Camshaft Position Intake Sensor (2)
50	L-GN	1867	12-Volt Reference
51	GY	2701	5-Volt Reference
52-53	-	-	Not Used
54	YE	410	ECT Sensor Signal
55	D-GN/WH	428	EVAP Canister Purge Solenoid Control
56-57	-	-	Not Used
58	PU	2121	IC 1 Control
59	OG/WH	2122	IC 2 Control
60	OG	2127	IC 7 Control
61	L-BU	2123	IC 3 Control
62	D-GN/WH	2124	IC 4 Control
63	PU/WH	2128	IC 8 Control
64	D-GN	2125	IC 5 Control
65	GY	2704	5-Volt Reference
66-67	-	-	Not used
68	OG	225	Generator Turn On Signal
69	L-BU/WH	2126	IC 6 Control
70	-	-	Not Used
71	YE/BK	5297	Camshaft Position Exhaust Sensor Supply Voltage (1)
72	-	-	Not Used
73	BK/WH	1551	Ground