Engine Control Module (ECM) C2

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

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

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) C2 Connector & Terminal Parts Information

Connector Part Information

OEM: 15497996
Service: See Catalog
Description: 73-Way F MX 123 Series (BK)

Terminal Part Information

Pins: 73
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Pins: 5, 9, 13, 20, 22-24, 26, 30-31, 33, 35, 39, 41-43, 45-46, 49-51, 54, 58, 67
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: C
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 6-8, 10, 16, 32, 37-38, 40, 48, 53, 57, 59, 65-66, 68
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: C
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Engine Control Module (ECM) C2 Terminal Identification

Pin	Wire Color	Circuit No.	Function
1-3	-	-	Not Used
4	TN	2761	Low Reference
5	PU	574	Low Reference
6	TN	1744	Fuel Injector (1) Control
7	PK/BK	1746	Fuel Injector (3) Control
8	L-BU/BK	844	Fuel Injector (4) Control
9	BN	2129	Low Reference
10	L-GN/BK	1745	Fuel Injector (2) Control
11-12	-	-	Not Used
13	GY/BK	2704	5-Volt Reference
14-15	-	-	Not Used
16	YE	581	TAC Motor Control (1)
17-19	-	-	Not Used
20	TN	5301	Low Reference
21	-	-	Not Used
22	PU	2121	Ignition Control (1)
23	L-BU	2123	Ignition Control (3)
24	D-GN/WH	2124	Ignition Control (4)
25	-	-	Not Used
26	OG/WH	2122	Ignition Control (2)
27-29	-	-	Not Used
30	D-GN/WH	428	EVAP Canister Purge Solenoid Control
31	OG	225	Generator Turn On Signal
32	BN	582	TAC Motor Control (2)
33	D-BU	5300	5-Volt Reference
34	-	-	Not Used
35	GY	6255	5-Volt Reference
36	-	-	Not Used
37	PU/WH	3110	Heated Oxygen Sensor High Signal Sensor 1
38	PU/WH	1668	Heated Oxygen Sensor High Signal Sensor 2
39	L-GN	432	Manifold Absolute Pressure Sensor Signal
40	TN	2752	Low Reference
41	PU/WH	6256	Low Reference
42	TN	2760	Low Reference
43	GY/WH	23	Low Reference
44	-	-	Not Used
45	YE	573	Crankshaft Position Sensor Signal
46	OG	5275	CMP Sensor Signal
47	-	-	Not Used
48	TN/WH	3111	Heated Oxygen Sensor Low Signal Sensor 1
49	OG/BK	469	Low Reference
50	GY	1716	Knock Sensor Signal
51	D-BU	496	Knock Sensor Signal
52	-	-	Not Used
53	GY	2701	5-Volt Reference
54	L-GN	2867	5-Volt Reference
55-56	-	-	Not Used
57	D-GN	485	Throttle Position Sensor (1) Signal
58	YE	410	Engine Coolant Temperature Sensor Signal
59	PU	486	Throttle Position Sensor (2) Signal
60-64	-	-	Not Used
65	GY/WH	3113	Heated Oxygen Sensor Heater Low Control Sensor 1
66	GY/WH	1423	Heated Oxygen Sensor Heater Low Control Sensor 2
67	TN/BK	231	Oil Pressure Switch Signal
68	TN/WH	1669	Heated Oxygen Sensor Low Signal Sensor 2
69-72	-	-	Not Used
73	BK/WH	451	Signal Ground