Engine Control Module Connector End Views. Cadillac SRX 2007

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2007 🢒 SRX 🢒 Engine 🢒 Engine Controls and Fuel - 4.6L (LH2) 🢒 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: 34576-0703
Service: 88988373
Description: 56-Way F (BU)

Terminal Part Information

Pins: 7, 9, 12-13, 18, 26, 33-37, 40, 44-45, 47-49, 53-54
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, 55
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: J/J
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 1-2, 4-5, 7, 9, 10, 12-13, 15, 24-26, 28, 30, 33-35, 39-41, 43-46, 48-52, 55-56
Terminal/Tray: 1928498135/19
Core/Insulation Crimp: 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
8	--	--	Not Used
9	TN	2759	Low Reference
10-11	--	--	Not Used
12	BN/WH	419	MIL Control
13	D-GN/WH	465	Fuel Pump Relay Control Primary
14-17	--	--	Not Used
18	D-BU	5985	Accessory Wakeup Serial Data
19	PK	239	Ignition 1 Voltage
20	RD/WH	340	Battery Positive Voltage
21-25	--	--	Not Used
26	YE	447	Starter Relay Coil Control
27-32	--	--	Not Used
33	WH/BK	1164	5-Volt Reference
34	GY	2709	5-Volt Reference
35	TN	1274	5-Volt Reference
36	BN	1271	Low Reference
37	PU	1272	Low Reference
38-39	--	--	Not Used
40	BN	5069	Main Relay Control
41-43	--	--	Not Used
44	D-BU	1936	Fuel Level Sensor Signal Primary
45	L-BU	1937	Fuel Level Sensor Signal Secondary
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: 12582677
Service: 88988931
Description: 73-Way F Receptacle 0.64 2.8 Sealed (GY)

Terminal Part Information

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

Pins: 1, 6-9, 17-24, 27, 29, 33-40, 42-44, 53-60, 62-64, 66-67
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, 11-16, 28, 30-32, 46-52, 69-72
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: Pins 2-3, 11-16, 28, 30-32, 46-52, 70-72 - J/J
Core/Insulation Crimp: Pins 4-5, 68-69 - K/K
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 Reference Bank 1 Sensor 1
3	PU/WH	3110	Reference Voltage Bank 1 Sensor 1
4	PU	3120	HO2S Reference Voltage Bank 1 Sensor 2
5	TN/WH	3121	HO2S Low Reference Bank 1 Sensor 2
6	L-BU	1876	Knock Sensor 2 Signal
7	GY	2303	Knock Sensor 2 Signal
8	D-BU	496	Knock Sensor 1 Signal
9	GY	1716	Knock Sensor 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	PK/BK	6395	Cam Phaser #2 Control
15	TN/BK	6397	Cam Phaser #4 Control
16	D-BU/WH	878	Fuel Injector 8 Control
17	OG/WH	2122	IC 2 Control
18	L-BU/WH	2126	IC 6 Control
19	BN/WH	2130	Low Reference
20	PU	6267	Camshaft CAM X Ground
21	TN	6268	Camshaft CAM Y Ground
22	WH	6269	Camshaft CAM Z Ground
23	BN	6266	Camshaft CAM W Ground
24	BK	2755	Low Reference
25-26	--	--	Not Used
27	GY/BK	6272	Crankshaft 60X Sensor Low Reference
28	PK/BK	5290	Ignition 1 Voltage
29	TN	2752	Low Reference
30	BN/WH	6754	Cam Phaser X Return Low Reference
31	D-BU/WH	6756	Cam Phaser Z Return Low Reference
32	L-BU/BK	1746	Fuel Injector 3 Control
33	OG	2127	IC 7 Control
34	D-GN	2125	IC 5 Control
35	BN	2129	Low Reference
36	D-GN	6457	Camshaft CAM X Supply Voltage
37	OG	6260	Camshaft CAM Y Supply Voltage
38	PK	6261	Camshaft CAM Z Supply Voltage
39	D-BU	6259	Camshaft CAM W Supply Voltage
40	GY	2705	5-Volt Reference
41	--	--	Not Used
42	TN	2760	Low Reference
43	PU/WH	6270	Crankshaft 60X Sensor Voltage
44	GY	2701	5-Volt Reference
45	--	--	Not Used
46	BN	6753	Cam Phaser W Return Low Reference
47	D-BU	6755	Cam Phaser Y Return Low Reference
48	L-GN/BK	1745	Fuel Injector 2 Control
49	TN/WH	845	Fuel Injector 5 Control
50	WH/BK	6396	Cam Phaser 3 Control
51	GY/BK	6394	Cam Phaser Control
52	L-BU/BK	844	Fuel Injector 4 Control
53	L-BU	2123	IC 3 Control
54	D-GN/WH	2124	IC 4 Control
55	PU/WH	2128	IC 8 Control
56	D-GN/WH	6264	Camshaft CAM X Signal
57	OG/BK	6263	Camshaft CAM Y Signal
58	PK/BK	6262	Camshaft CAM Z Signal
59	D-BU/WH	6265	Camshaft CAM W Signal
60	TN/WH	331	Oil Pressure Sensor Signal
61	--	--	Not Used
62	TN	472	IAT Sensor Signal
63	WH/BK	6271	Crankshaft 60X 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 Bank 1 Sensor 1
69	GY/WH	3122	HO2S Heater Low Control Bank 2 Sensor 1
70	YE/BK	846	Fuel Injector 6 Control
71	OG/BK	877	Fuel Injector 7 Control
72	TN	1744	Fuel Injector 1 Control
73	BK	1550	Ground

Engine Control Module (ECM) C3

Connector Part Information

OEM: 12582678
Service: 88988372
Description: 73-Way F Receptacle 0.64 2.8 Sealed (BK)

Terminal Part Information

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

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

Pins: 3-6,15, 33, 48, 50, 53
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: Pins 3-4, 33, 48, 53 - J/J
Core/Insulation Crimp: Pins 5-6, 15, 50 - K/K
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 Reference Bank 2 Sensor 1
4	PU/WH	3210	HO2S Reference Voltage Bank 2 Sensor 1
5	PU	3220	HO2S Reference Voltage Bank 2 Sensor 2
6	TN	3221	HO2S Low Reference 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
24-28	--	--	Not Used
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
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
60-72	--	--	Not Used
73	BK	1550	Ground