Engine Control Module Connector End Views. Pontiac G6 2007

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2007 🢒 G6 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T45-E 🢒 Engine Control Module Connector End Views

Connector 1:	Engine Control Module (ECM) C1
Connector 2:	Engine Control Module (ECM) C2
Connector 3:	Engine Control Module (ECM) C3

Engine Control Module (ECM) C1

Connector Part Information

OEM: 13510514
Service: 88988736
Description: 56-Way F Micro-Pack 64 Series Sealed (BU)

Terminal Part Information

Pins: 7, 9, 12-13, 18, 20, 26, 33-37, 40, 44, 47-49, 53-55
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

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

Engine Control Module (ECM) C1

Pin	Wire Color	Circuit No.	Function
1-6	--	--	Not Available
7	WH	17	Stop Lamp Supply Voltage
8	--	--	Not Available
9	OG/BK	1057	Low Reference
10-11	--	--	Not Available
12	BN/WH	419	MIL Control
13	D-GN/WH	465	Fuel Pump Relay Control
14-17	--	--	Not Available
18	BN	4	Accessory Voltage
19	PK	639	Ignition 1 Voltage
20	RD/WH	540	Battery Positive Voltage
21-25	--	--	Not Available
26	PU/WH	6386	Starter Relay Coil Control
27-32	--	--	Not Available
33	WH/BK	1164	5-Volt Reference 2
34	GY	705	5-Volt Reference 1
35	TN	1274	5-Volt Reference 1
36	BN	1271	Low Reference
37	PU	1272	Low Reference
38	--	--	Not Available
39	--	--	Not Used
40	BN	5069	Powertrain Relay Control
41-43	--	--	Not Available
44	PU	1589	Fuel Level Sensor Signal
45-46	--	--	Not Available
47	D-BU	1161	APP Sensor 1 Signal
48	D-GN	890	Fuel Tank Pressure Sensor Signal
49	L-BU	1162	APP Sensor 2 Signal
50-52	--	--	Not Available
53	D-GN/WH	459	A/C Compressor Clutch Relay Control
54	D-BU	473	High Speed Cooling Fan Relay Control
55	WH	1310	EVAP Canister Vent Solenoid Control
56	--	--	Not Available

Engine Control Module (ECM) C2

Connector Part Information

OEM: 15492352
Service: 88988931
Description: 73-Way F MX123 Series (BK)

Terminal Part Information

Pins: 1, 10, 27, 29, 44, 46, 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: 2-5, 11-13, 8-9, 42, 62, 67, 72
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: Pins 2-5, 11-13 - K/K
Core/Insulation Crimp: Pins 8-9, 42, 62, 67, 72 - J/J
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 14, 17, 20, 23, 30, 32-33, 35-36, 39, 43, 48, 50, 53, 56, 59, 63, 71
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

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

Engine Control Module (ECM) C2

Pin	Wire Color	Circuit No.	Function
1	PU	2121	IC 1 Control
2	TN/WH	3111	HO2S Heater Low Control (Sensor 1)
3	PU/WH	3110	HO2S High Signal (Sensor 1)
4	PU	3120	HO2S Reference Voltage (Sensor 2)
5	TN/WH	3121	HO2S Low Reference (Sensor 2)
6-7	--	--	Not Used
8	D-BU	496	Knock Sensor Signal
9	GY	1716	Knock Sensor 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
15-16	--	--	Not Used
17	L-BU	2123	IC 3 Control
18-19	--	--	Not Used
20	GY	5296	Low Reference
21-22	--	--	Not Used
23	TN	5301	Low Reference
24-26	--	--	Not Used
27	PU	574	Low Reference
28	--	--	Not Used
29	TN	2752	Low Reference
30	L-GN	5282	Low Reference
31	--	--	Not Used
32	L-GN/BK	1745	Fuel Injector 2 Control
33	D-GN/WH	2124	IC 4 Control
34	--	--	Not Used
35	BN	2129	Low Reference
36	YE/BK	5297	5-Volt Reference 2
37-38	--	--	Not Used
39	D-BU	5300	5-Volt Reference 2
40-41	--	--	Not Used
42	TN/BK	2760	Low Reference
43	L-GN	2867	5-Volt Reference 3
44	GY	2701	5-Volt Reference 2
45	--	--	Not Used
46	TN	2199	Low Reference
47	--	--	Not Used
48	PK/BK	1746	Fuel Injector 3 Control
49	--	--	Not Used
50	TN	452	CMP Actuator Solenoid Control Exhaust
51-52	--	--	Not Used
53	OG/WH	2122	IC 2 Control
54-55	--	--	Not Used
56	D-GN	5273	CMP Sensor Signal
57-58	--	--	Not Used
59	OG	5275	CMP Sensor Signal
60-61	--	--	Not Used
62	TN	472	IAT Sensor Signal
63	YE	573	CKP Sensor 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 (Sensor 1)
69	GY/WH	3122	HO2S Heater Low Control (Sensor 2)
70	--	--	Not Used
71	L-BU/BK	844	Fuel Injector 4 Control
72	TN	1744	Fuel Injector 1 Control
73	BK/WH	451	Ground

Engine Control Module (ECM) C3

Connector Part Information

OEM: 15492351
Service: 88988372
Description: 73-Way F MX123 34566 Series (GY)

Terminal Part Information

Pins: 7, 21, 23-24, 28-29, 33, 35, 37, 39, 46, 48-49, 53, 55, 57, 59, 65
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 44
Terminal/Tray: 12191819/8
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Engine Control Module (ECM) C3

Pin	Wire Color	Circuit No.	Function
1-6	--	--	Not Used
7	OG	225	Generator Turn On Signal
8-20	--	--	Not Used
21	TN	5514	Low Reference
22	--	--	Not Used
23	OG/BK	469	Low Reference
24	TN	2759	Low Reference
25-27	--	--	Not Used
28	TN/WH	1704	Low Reference
29	GY	23	Generator Field Duty Cycle Signal
30-32	--	--	Not Used
33	TN	2501	High Speed GMLAN Serial Data Bus -
34	--	--	Not Used
35	TN	2761	Low Reference
36	--	--	Not Used
37	GY	2700	5-Volt Reference 2
38	--	--	Not Used
39	GY	2704	5-Volt Reference 1
40-43	--	--	Not Used
44	L-BU/BK	1688	5-Volt Reference 2
45	--	--	Not Used
46	OG/BK	1786	Park/Neutral Signal
47	--	--	Not Used
48	D-GN/WH	428	EVAP Canister Purge Solenoid Control
49	D-GN	335	Low Speed Cooling Fan Relay Control
50-52	--	--	Not Used
53	TN/BK	2500	High Speed GMLAN Serial Data Bus +
54	--	--	Not Used
55	YE	410	ECT Sensor Signal
56	--	--	Not Used
57	OG/BK	380	A/C Refrigerant Pressure Sensor Signal
58	--	--	Not Used
59	L-GN	432	MAP Sensor Signal
60-64	--	--	Not Used
65	TN/BK	231	Oil Pressure Sensor Signal
66-73	--	--	Not Used