Engine Control Module (ECM) Connector End View C2

Fig 1: ECM C2 Connector End View

Courtesy of GENERAL MOTORS CORP.

ECM C2 Connector Part Information

Connector Part Information  OEM: 13547243 Service: See Catalog Description: 73-Way F (BK)

Terminal Part Information  Pins: 1, 14, 15, 17, 24, 27, 29, 30, 31, 33, 34, 43, 44, 46, 47, 50, 51, 53, 54, 63, 64, 66, 68, 69 Terminal/Tray: 33467-0003/23 Core/Insulation Crimp: H/H Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU) Pins: 2, 3, 4, 5, 11, 12, 13, 6, 7, 8, 9, 19, 20, 21, 22, 23, 32, 35, 36, 37, 38, 39, 42, 48, 49, 52, 56, 57, 58, 59, 62, 67, 71, 72 Terminal/Tray: 33467-0005/23 Core/Insulation Crimp: Pins 2, 3, 4, 5, 11, 12, 13 - K/K Core/Insulation Crimp: Pins 6, 7, 8, 9, 19, 20, 21, 22, 23, 32, 35, 36, 37, 38, 39, 42, 48, 49, 52, 56, 57, 58, 59, 62, 67, 71, 72 - J/J Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

ECM C2 Connector End View

Pin	Wire Color	Circuit No.	Function
1	PU	2121	IC 1 Control
2	TN\WH	3111	HO2S Low Reference (Bank 1 Sensor 1)
3	PU\WH	3110	HO2S Reference Voltage (Bank 1 Sensor 1)
4	PU	3120	HO2S High Signal (Bank 1 Sensor 2)
5	TN\WH	3121	HO2S Low Signal (Bank 1 Sensor 2)
6	L-BU	1876	Knock Sensor 2 Signal
7	GY	2303	Knock Sensor 2 Signal B
8	D-BU	496	Knock Sensor 1 Signal
9	GY	1716	Knock Sensor 1 Signal B
10	-	-	Not Used
11	YE	581	TAC Motor Control -1
12	BN	582	TAC Motor Control -2
13	PK\BK	5290	Ignition 1 Voltage
14	PU	5284	CMP Actuator Solenoid Control Intake Bank 1
15	OG\BK	5272	CMP Actuator Solenoid Control Intake Bank 2
16	-	-	Not Used
17	OG\WH	2122	IC 2 Control
18	-	-	Not Used
19	PK	6414	Low Reference
20	GY	5296	Low Reference
21	BN\WH	5303	Low Reference
22	BN	5299	Low Reference
23	TN	5301	Low Reference
24	BK	2755	Low Reference
25-26	-	-	Not Used
27	PU	574	Low Reference
28	-	-	Not Used
29	TN	2752	Low Reference
30	BN\WH	6754	Low Reference
31	D-BU	6755	Low Reference
32	L-BU\BK	844	Fuel Injector 4 Control
33	L-BU	2123	IC 3 Control
34	L-BU\WH	2126	IC 6 Control
35	PU	6413	Low Reference
36	YE\BK	5297	Camshaft Position Exhaust Sensor Supply Voltage (1)
37	L-BU	5302	Camshaft Position Intake Sensor Supply Voltage (2)
38	L-GN	5298	Camshaft Position Exhaust Sensor Supply Voltage (2)
39	D-BU	5300	Camshaft Position Intake Sensor Supply Voltage (1)
40-41	-	-	Not Used
42	TN\BK	2760	Low Reference
43	L-GN	2867	5-Volt Reference 4
44	GY	2701	5-Volt Reference 3
45	-	-	Not Used
46	BN	6753	Low Reference
47	D-BU\WH	6756	Low Reference
48	L-GN\BK	1745	Fuel Injector 2 Control
49	YE\BK	846	Fuel Injector 6 Control
50	L-GN	5282	Camshaft Phaser Exhaust Solenoid (1)
51	WH\BK	5283	Camshaft Phaser Exhaust Solenoid (2)
52	TN\WH	845	Fuel Injector 5 Control
53	D-GN\WH	2124	IC 4 Control
54	D-GN	2125	IC 5 Control
55	-	-	Not Used
56	D-GN	5273	Camshaft Position Exhaust Sensor (1)
57	YE	5276	Camshaft Position Intake Sensor (2)
58	PU	5274	Camshaft Position Exhaust Sensor (2)
59	OG	5275	Camshaft Position Intake Sensor (1)
60-61	-	-	Not Used
62	TN	472	IAT Sensor Signal
63	YE	573	CKP Sensor [1] Signal
64	D-GN	485	TP Sensor 1 Signal
65	-	-	Not Used
66	PU	486	TP Sensor 2 Signal
67	YE	492	MAF Sensor Signal
68	GY\WH	3113	HO2S Heater Low Control (- Bank 1 Sensor 1)
69	GY\WH	3122	HO2S Heater Low Control (- Bank 2 Sensor 1)
70	-	-	Not Used
71	PK\BK	1746	Fuel Injector 3 Control
72	TN	1744	Fuel Injector 1 Control
73	-	-	Not Used