Engine Control Module Connector End Views. Cadillac XLR 2006

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2006 🢒 XLR 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 5L40-E/5L50-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: 15430219
Service: 88953346
Description: 56-Way F Micro-Pack 64 Series (BU)

Terminal Part Information

Pins: 1, 2, 5, 7, 10, 11, 13, 14, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 35, 36, 37, 43, 46, 51, 55
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Pins: 48
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Engine Control Module (ECM) - C1

Pin	Wire Color	Circuit No.	Function
1	TN/BK	2500	High Speed GMLAN Serial Data Bus (+)
2	TN	2501	High Speed GMLAN Serial Data Bus (-)
3-4	--	--	Not Used
5	TN	1274	5-Volt Reference
6	--	--	Not Used
7	WH/BK	1164	5-Volt Reference
8-9	--	--	Not Used
10	WH	1310	EVAP Canister Vent Solenoid Control
11	OG/BK	380	A/C Refrigerant Pressure Sensor Signal
12	--	--	Not Used
13	WH	17	Stop Lamp Switch Signal
14	YE/BK	625	Starter Enable Relay Control
15-16	--	--	Not Used
17	PK	439	Ignition 1 Voltage
18	PK	1439	Ignition 1 Voltage
19	PK	1439	Ignition 1 Voltage
20	RD/WH	2440	Battery Positive Voltage
21	L-BU	1162	APP Sensor 2 Signal
22	--	--	Not Used
23	D-GN/WH	465	Fuel Pump Relay Control
24	BN/WH	419	MIL Control
25	D-GN/WH	459	A/C Compressor Clutch Relay Control
26	WH	121	Engine Speed Signal
27	D-BU	1161	APP Sensor 1 Signal
28	D-GN/WH	817	Vehicle Speed Signal
29	YE	492	MAF Sensor Signal
30	--	--	Not Used
31	TN	2760	Low Reference
32	BK/WH	2751	Low Reference
33	OG/BK	812	12-Volt Reference
34	--	--	Not Used
35	GY	2700	5-Volt Reference
36	BN	1271	Low Reference
37	PU	1272	Low Reference
38-42	--	--	Not Used
43	WH/BK	448	Powertrain Diagnostic Enable
44-45	--	--	Not Used
46	YE	43	Accessory Voltage
47	--	--	Not Used
48	BN	5546	Fuel Pump Speed Control Feedback Signal
49-50	--	--	Not Used
51	TN/BK	472	IAT Sensor Signal
52-54	--	--	Not Used
55	D-GN	335	Low Speed Cooling Fan Relay Control
56	--	--	Not Used

Engine Control Module (ECM) - C2

Connector Part Information

OEM: 15430228
Service: 88953274
Description: 73-Way F Micro-Pack 64 Series (BK)

Terminal Part Information

Pins: 3, 4, 8, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 54, 55, 58, 59, 60, 61, 62, 63, 64, 65, 68, 69, 71
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Pins: 73
Terminal/Tray: 15304720/19
Core/Insulation Crimp: 4/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Engine Control Module (ECM) - C2

Pin	Wire Color	Circuit No.	Function
1-2	--	--	Not Used
3	D-GN	485	TP Sensor 1 Signal
4	PU	486	TP Sensor 2 Signal
5-7	--	--	Not Used
8	L-GN	432	MAP Sensor Signal
9	--	--	Not Used
10	YE	573	CKP Sensor 1 Signal
11	L-BU	1876	Knock Sensor 2 Signal
12	GY	23	Generator Field Duty Cycle Signal
13	GY	1716	Low Reference
14	L-GN	5282	CMP Actuator Solenoid Control Bank 1 Exhaust
15-16	--	--	Not Used
17	TN	1744	Fuel Injector 1 Control
18	L-GN/BK	1745	Fuel Injector 2 Control
19	D-BU	496	Knock Sensor 1 Signal
20	PK/BK	1746	Fuel Injector 3 Control
21	OG/BK	877	Fuel Injector 7 Control
22	TN/WH	845	Fuel Injector 5 Control
23	YE/BK	846	Fuel Injector 6 Control
24	D-BU/WH	878	Fuel Injector 8 Control
25	D-GN	5273	CMP Sensor Signal Bank 1 Exhaust
26	--	--	Not Used
27	BN/WH	5303	Low Reference
28	GY	2303	Low Reference
29	PU	5284	CMP Actuator Solenoid Control Bank 1 Intake
30	L-BU/BK	844	Fuel Injector 4 Control
31	OG/BK	5272	CMP Actuator Solenoid Control Bank 2 Intake
32	OG	5275	CMP Sensor Signal Bank 1 Intake
33	D-BU	5300	12-Volt Reference
34	WH/BK	5283	CMP Actuator Solenoid Control Bank 2 Exhaust
35	TN	5301	Low Reference
36	OG/BK	469	Low Reference
37	TN	2752	Low Reference
38	TN	2761	Low Reference
39	BN/WH	2130	Low Reference
40	L-BU	5302	12-Volt Reference
41	PU	574	Low Reference
42	BN	2129	Low Reference
43	PU	5274	CMP Sensor Signal Bank 2 Exhaust
44	BN	582	TAC Motor Control - 2
45	GY	5296	Low Reference
46	L-GN	5298	12-Volt Reference
47	BN	5299	Low Reference
48	YE	581	TAC Motor Control - 1
49	YE	5276	CMP Sensor Signal Bank 2 Intake
50	L-GN	1867	12-Volt Reference
51	GY	2701	5-Volt Reference
52-53	--	--	Not Used
54	YE	410	ECT Sensor Signal
55	D-GN/WH	428	EVAP Canister Purge Solenoid Control
56-57	--	--	Not Used
58	PU	2121	IC 1 Control
59	OG/WH	2122	IC 2 Control
60	OG	2127	IC 7 Control
61	L-BU	2123	IC 3 Control
62	D-GN/WH	2124	IC 4 Control
63	PU/WH	2128	IC 8 Control
64	D-GN	2125	IC 5 Control
65	GY	2704	5-Volt Reference
66-67	--	--	Not Used
68	OG	225	Generator Turn On Signal
69	L-BU/WH	2126	IC 6 Control
70	--	--	Not Used
71	YE/BK	5297	12-Volt Reference
72	--	--	Not Used
73	BK/WH	451	Ground

Engine Control Module (ECM) - C3

Connector Part Information

OEM: 15430218
Service: 88953347
Description: 56-Way F Micro-Pack 64 Series (GY)

Terminal Part Information

Pins: 1, 2, 3, 12, 13, 16, 18, 19, 20, 21, 22, 23, 24, 25, 37, 38, 40, 41, 42, 43, 44, 45, 46, 48, 49, 51
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Engine Control Module (ECM) - C3

Pin	Wire Color	Circuit No.	Function
1	PU	3110	HO2S Reference Voltage Bank 1 Sensor 1
2	TN/WH	3111	HO2S Low Reference Bank 1 Sensor 1
3	PU/WH	5281	HO2S Output Pump Current Bank 1 Sensor 1
4-11	--	--	Not Used
12	D-BU	1936	Fuel Level Sensor Signal - Primary
13	GY/WH	3122	HO2S Heater Low Control Bank 1 Sensor 2
14-15	--	--	Not Used
16	OG/BK	3223	HO2S Heater Low Control Bank 2 Sensor 2
17	--	--	Not Used
18	OG/BK	1786	Park/Neutral Signal
19	TN/WH	3121	HO2S Low Signal Bank 1 Sensor 2
20	PU	3220	HO2S High Signal Bank 2 Sensor 2
21	TN	3221	HO2S Low Signal Bank 2 Sensor 2
22	OG	5280	HO2S Input Pump Current Bank 1 Sensor 1
23	BN	1174	Oil Level Switch Signal
24	L-BU	1937	Fuel Level Sensor Signal - Secondary
25	TN/WH	331	Oil Pressure Sensor Signal
26-36	--	--	Not Used
37	TN	808	Low Reference
38	BK	2755	Low Reference
39	--	--	Not Used
40	GY/WH	3113	HO2S Heater Low Control Bank 1 Sensor 1
41	L-GN	3212	HO2S Heater Low Control Bank 2 Sensor 1
42	GY	2709	5-Volt Reference
43	PU	3120	HO2S High Signal Bank 1 Sensor 2
44	D-GN	890	Fuel Tank Pressure Sensor Signal
45	PU/WH	3210	HO2S Reference Voltage Bank 2 Sensor 1
46	TN/WH	3211	HO2S Low Reference Bank 2 Sensor 1
47	--	--	Not Used
48	WH	5279	HO2S Output Pump Current Bank 2 Sensor 1
49	L-GN	5278	HO2S Input Pump Current Bank 2 Sensor 1
50	--	--	Not Used
51	GY	2705	5-Volt Reference
52-56	--	--	Not Used