Engine Control Module Connector End Views. Saturn AURA 2007

For 1990-2009 cars only

Makes 🢒 Saturn 🢒 2007 🢒 AURA 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 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 Receptacle MX123 Series (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: 10, 11, 47, 49, 69, 37, 38, 41
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: Pins 10, 11, 47, 49, 69 - K/K
Core/Insulation Crimp: Pins 37, 38, 41 - J/J
Core/Insulation Crimp: Pins 17, 18, 19, 20, 26, 27, 29, 30, 37, 40 - J/J
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)

Engine Control Module (ECM) C1

Pin	Wire Color	Circuit No.	Function
1-6	--	--	Not Used
7	WH	17	Stop Lamp Switch Signal or Stop Lamp Supply Voltage
8	--	--	Not Used
9	OG/BK	1057	Low Reference
10-11	--	--	Not Used
12	BN/WH	419	MIL Control
13	D-GN/WH	465	Fuel Pump Relay Control
14-17	--	--	Not Used
18	BN	4	Accessory Voltage
19	PK	639	Ignition 1 Voltage
20	RD/WH	540	Battery Positive Voltage
21-25	--	--	Not Used
26	PU/WH	6386	Starter Relay Control
27-32	--	--	Not Used
33	WH/BK	1164	5-Volt Reference
34	GY	705	5-Volt Reference
35	TN	1274	5-Volt Reference
36	BN	1271	Low Reference
37	PU	1272	Low Reference
38	--	--	Not Used
39	BN	818	Vehicle Speed Signal
40	BN	5069	Main Relay Control
41-43	--	--	Not Used
44	PU	1589	Fuel Level Sensor Signal
45-46	--	--	Not Used
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 Used
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 Used

Engine Control Module (ECM) C2

Connector Part Information

OEM: 13547243
Service: See Catalog
Description: 73-Way F Receptacle 0.64 2.8 Series Sealed (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: 1, 14, 17, 20, 23, 24, 27, 29, 30, 33, 35, 36, 39, 42, 43, 44, 46, 50, 53, 56, 59, 62, 63, 64, 66, 67, 2, 3, 8, 12, 13, 16, 21, 22, 24, 32, 33, 34, 35, 41, 43, 44, 50, 52, 53, 58, 61, 63, 64, 65, 66, 68, 69, 70, 71, 72, 78
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: Pins 1, 14, 17, 20, 23, 24, 27, 29, 30, 33, 35, 36, 39, 42, 43, 44, 46, 50, 53, 56, 59, 62, 63, 64, 66, 67 - H/H
Core/Insulation Crimp: Pins 2, 3, 8, 12, 13, 16, 21, 22, 24, 32, 33, 34, 35, 41, 43, 44, 50, 52, 53, 58, 61, 63, 64, 65, 66, 68, 69, 70, 71, 72, 78 - H/H
Core/Insulation Crimp: Pins 17, 18, 19, 20, 26, 27, 29, 30, 37, 40 - J/J
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)

Pins: 2, 3, 4, 5, 8, 9, 32, 48, 68, 69, 71, 72, 11, 12, 13, 17, 18, 19, 20, 26, 27, 29, 30, 37, 40, 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, 8, 9, 32, 48, 68, 69, 71, 72 - J/J
Core/Insulation Crimp: Pins 11, 12, 13 - K/K
Core/Insulation Crimp: Pins 17, 18, 19, 20, 26, 27, 29, 30, 37, 40 - J/J
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)

Engine Control Module (ECM) C2

Pin	Wire Color	Circuit No.	Function
1	PU	2121	IC 1 Control
2	TN/WH	3111	HO2S Low Signal Bank 1 Sensor 1
3	PU/WH	3110	HO2S High Signal 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	KS 2 Signal
7	GY	2303	KS 2 Signal
8	D-BU	496	KS 1 Signal
9	GY	1716	KS 1 Signal
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 Signal Bank 1 Intake
15	OG/BK	5272	CMP Actuator Solenoid Signal Bank 2 Intake
16	--	--	Not Used
17	OG/WH	2122	IC 2 Control
18	--	--	Not Used
19	PK	6414	ECM Low Reference
20	GY	5296	CMP Sensor Low Reference Bank 1 Exhaust
21	BN/WH	5303	CMP Sensor Low Reference Bank 2 Intake
22	BN	5299	CMP Sensor Low Reference Bank 2 Exhaust
23	TN	5301	CMP Sensor Low Reference Bank 1 Intake
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	CMP Actuator Solenoid Bank 1 Exhaust
31	D-BU	6755	CMP Actuator Solenoid Bank 2 Exhaust
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	CMP Sensor 5-Volt Reference Bank 1 Exhaust
37	L-BU	5302	CMP Sensor 5-Volt Reference Bank 2 Intake
38	L-GN	5298	CMP Sensor 5-Volt Reference Bank 2 Exhaust
39	D-BU	5300	CMP Sensor 5-Volt Reference Bank 1 Intake
40-41	--	--	Not Used
42	TN/BK	2760	Low Reference
43	L-GN	2867	5-Volt Reference 2
44	GY	2701	5-Volt Reference 2
45	--	--	Not Used
46	BN	6753	CMP Actuator Solenoid Bank 1 Intake
47	D-BU/WH	6756	CMP Actuator Solenoid Bank 2 Intake
48	L-GN/BK	1745	Fuel Injector 2 Control
49	YE/BK	846	Fuel Injector 6 Control
50	L-GN	5282	CMP Actuator Solenoid Signal Bank 1 Exhaust
51	WH/BK	5283	CMP Actuator Solenoid Signal Bank 2 Exhaust
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	CMP Signal Bank 1 Exhaust
57	YE	5276	CMP Signal Bank 2 Intake
58	PU	5274	CMP Signal Bank 2 Exhaust
59	OG	5275	CMP Signal Bank 1 Intake
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 1 Sensor 2
70	--	--	Not Used
71	PK/BK	1746	Fuel Injector 3 Control
72	TN	1744	Fuel Injector 1 Control
73	BK/WH	451	Ground

Engine Control Module (ECM) C3

Connector Part Information

OEM: 13542577
Service: See Catalog
Description: 73-Way F Receptacle 0.64 (BK)

Terminal Part Information

Pins: 7, 15, 21, 24, 29, 32, 33, 37, 46, 49, 50, 53, 57, 64, 65
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 3, 4, 5, 6, 23, 35, 39, 48, 55, 59
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: Pins 3, 4, 5, 6 - K/K
Core/Insulation Crimp: Pins 23, 35, 39, 48, 55, 59 - J/J
Core/Insulation Crimp: Pins 17, 18, 19, 20, 26, 27, 29, 30, 37, 40 - J/J
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)

Engine Control Module (ECM) C3

Pin	Wire Color	Circuit No.	Function
1-2	--	--	Not Used
3	TN/WH	3211	HO2S Low Signal Bank 2 Sensor 1
4	PU/WH	3210	HO2S High Signal Bank 2 Sensor 1
5	PU	3220	HO2S High Signal Bank 2 Sensor 2
6	TN	3221	HO2S Low Signal Bank 2 Sensor 2
7	OG	225	Generator Turn On Signal
8-14	--	--	Not Used
15	L-GN	3212	HO2S Heater Low Control Bank 2 Sensor 1
16-20	--	--	Not Used
21	TN	5514	Low Reference
22	--	--	Not Used
23	OG/BK	469	Low Reference
24	TN/WH	2759	Low Reference
25-28	--	--	Not Used
29	GY	23	Generator Field Duty Cycle Signal
30-31	--	--	Not Used
32	OG	6392	IMT Valve Control
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
38	--	--	Not Used
39	GY	2704	5-Volt Reference
40-45	--	--	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	OG/WH	3223	HO2S Heater Low Control Bank 2 Sensor 2
51-52	--	--	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
60-63	--	--	Not Used
64	YE/BK	6806	IMT Valve SIgnal
65	TN/BK	231	Oil Pressure Switch Signal
66-73	--	--	Not Used