Engine Control Module (ECM) C1

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) C1 Connector End View

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) C1 Connector & Terminal Parts Information

Connector Part Information

OEM: 15499466
Service: See Catalog
Description: 73-Way F MX 123 Series (BK)

Terminal Part Information

Pins: 73
Terminal/Tray: 7116-4151-02/9
Core/Insulation Crimp: C
Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Pins: 1, 3-6, 13, 18, 21, 24, 25, 27, 30, 31, 34, 36, 37, 39, 41-44, 47, 49, 54-56, 58, 66-68
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 19, 20, 70
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: J/J
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Engine Control Module (ECM) C1 Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	D-BU	1161	APP Sensor 1 Signal
2	-	-	Not Used
3	BN	4	Accessory Voltage
4	PU	420	TCC Brake Switch/Cruise Control Release Signal
5	D-GN	335	Low Speed Cooling Fan Relay Control
6	L-GN/WH	465	Fuel Pump Relay Control (- Primary)
7-12	-	-	Not Used
13	BN	5069	Powertrain Relay Control
14-17	-	-	Not Used
18	L-BU	1162	APP Sensor 2 Signal
19	PK/BK	1039	Ignition 1 Voltage
20	RD/WH	840	Battery Positive Voltage
21	PU	1272	Low Reference
22-23	-	-	Not Used
24	TN	2759	Low Reference
25	OG/BK	380	A/C Refrigerant Pressure Sensor Signal
26	-	-	Not Used
27	BN/WH	419	MIL Control
28-29	-	-	Not Used
30	D-GN/WH	459	A/C Compressor Clutch Relay Control
31	YE	447	Starter Relay Coil Control
32-33	-	-	Not Used
34	PU/WH	6356	VSS Signal Low
35	-	-	Not Used
36	BN/WH	379	Cruise Control Clutch Pedal Position Switch Signal (M86)
37	YE	492	Mass Air Flow Sensor Signal
38	-	-	Not Used
39	PU	1589	Fuel Level Sensor Signal (+ Primary)
40	-	-	Not Used
41	BN	1271	Low Reference
42	D-GN	890	Fuel Tank Pressure Sensor Signal
43	TN/BK	2500	High Speed GMLAN Serial Data (+) (1)
44	TN	2501	High Speed GMLAN Serial Data (-) (1)
45-46	-	-	Not Used
47	WH/BK	1164	5-Volt Reference
48	-	-	Not Used
49	D-BU	473	Coolant Fan Relay Output - CoilL
50-53	-	-	Not Used
54	BN/WH	6354	VSS Signal High
55	L-BU	20	Stop Lamp Supply Voltage
56	D-GN	1433	PNP/Clutch Start Switch Signal (M86)
57	-	-	Not Used
58	TN	472	Intake Air Temperature Sensor Signal
59-65	-	-	Not Used
66	GY	2709	5-Volt Reference
67	TN	1274	5-Volt Reference
68	BN	436	Air Injection Reaction Pump Motor Relay Output - Coil
69	-	-	Not Used
70	WH	1310	EVAP Canister Vent Solenoid Control
71-72	-	-	Not Used
73	PK/BK	5293	Ignition 1 Voltage