Engine Control Module (ECM) X1 (LP1/LY7)

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Control Module (ECM) X1 (LP1/LY7) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.75 L-GN	5282	Camshaft Phaser Exhaust Solenoid
2	0.75 PU	5284	Camshaft Phaser Intake Solenoid
3	-	-	Not Used
4	0.75 YE/BK	846	Fuel Injector 6 Control
5	0.75 D-GN/WH	428	EVAP Canister Purge Solenoid Control
6	-	-	Not Used
7	0.5 OG	5275	Camshaft Position Intake Sensor
8	-	-	Not Used
9	0.5 PU	5274	Camshaft Position Exhaust Sensor
10	0.5 RD	225	Generator Turn On Signal
11	-	-	Not Used
12	0.5 L-BU	7302	Intake Manifold Tuning Valve (IMTV) Control Signal
13	0.5 BN/WH	2130	Low Reference
14	-	-	Not Used
15	0.5 GY	705	5-Volt Reference
16-23	-	-	Not Used
24	0.5 YE	581	TAC Motor Control - 1
25	0.75 WH/BK	5283	Camshaft Phaser Exhaust Solenoid
26	0.8 PK/BK	1746	Fuel Injector 3 Control
27	-	-	Not Used
28	0.75 BK/WH	845	Fuel Injector 5 Control
29	-	-	Not Used
30	0.5 GY	23	Generator Field Duty Cycle Signal
31-32	-	-	Not Used
33	0.5 YE	5276	Camshaft Position Intake Sensor
34	0.5 D-GN	5273	Camshaft Position Exhaust Sensor
35	0.5 YE	573	CKP Sensor Signal
36-38	-	-	Not Used
39	0.5 GY	2701	5-Volt Reference
40	0.5 GY	596	5-Volt Reference
41	0.5 BK	552	Low Reference
42	-	-	Not Used
43	0.5 BK	470	Low Reference
44	0.5 BK	476	Low Reference
45	0.5 GY	605	5-Volt Reference
46	0.5 BK	452	Low Reference
47	-	-	Not Used
48	0.5 BN	582	TAC Motor Control - 2
49	0.75 OG/BK	5272	Camshaft Phaser Intake Solenoid
50	0.75 L-BU/BK	844	Fuel Injector 4 Control
51	1 BN	4801	Direct Fuel Injector (DFI) High Voltage Control Cylinder 1
51	0.8 BK	1744	Fuel Injector 1 Control
52	0.75 L-GN/BK	1745	Fuel Injector 2 Control
53-54	-	-	Not Used
55	0.5 PU	2121	IC 1 Control
56	0.5 L-BU	2123	IC 3 Control
57	0.5 D-GN	2125	IC 5 Control
59	0.5 D-BU	496	Knock Sensor Signal
60	0.5 GY	2303	Knock Sensor Signal
61	0.5 TN/WH	331	Oil Pressure Sensor Signal
62-64	-	-	Not Used
65	0.5 YE	7017	Variable Intake Manifold Position Signal
66	-	-	Not Used
67	0.5 PU/WH	3110	HO2S Reference Voltage (Bank 1 Sensor 1)
68-69	-	-	Not Used
70	0.5 TN/WH	3211	HO2S Low Reference (Bank 2 Sensor 1)
71	-	-	Not Used
72	0.8 GN	3212	HO2S Heater Low Control Bank 2 Sensor 1
73	-	-	Not Used
74-77	-	-	Not Used
78	0.5 BN	2129	Low Reference
79	0.5 RD/WH	2122	IC 2 Control
80	0.5 D-GN/WH	2124	IC 4 Control
81	0.5 L-BU/WH	2126	IC 6 Control
82	0.5 YE	410	ECT Sensor Signal
83	0.5 GY	1716	Knock Sensor Signal
84	0.5 L-BU	1876	Knock Sensor 2 Signal
85-87	-	-	Not Used
88	0.5 BK	2752	Low Reference
89	0.5 PU	486	TP Sensor 2 Signal
90	0.5 D-GN	485	TP Sensor 1 Signal
91	-	-	Not Used
92	0.5 TN/WH	3111	HO2S Low Reference (Bank 1 Sensor 1)
93	0.5 PU/WH	3210	HO2S Reference Voltage (Bank 2 Sensor 1)
94-95	-	-	Not Used
96	0.8 BK/WH	3113	HO2S Heater Low Control Bank 1 Sensor 1

Connector Part Information

OEM: 1928404781
Service: 19149311
Description: 96-Way F 1.2 Series, Sealed (BK)

Terminal Part Information

Pins: 26, 49, 51, 52
Terminal/Tray: 1928498056/8
Core/Insulation Crimp: E/1
Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Pins: 1, 2, 4, 5, 7, 9, 10, 12, 13, 15, 24-26, 28, 30, 33-35, 39-41, 43-46, 48, 50-52, 55, 56, 57, 59-61, 67, 70, 72, 78-84, 88-90, 92, 93, 96,
Terminal/Tray: 1928498135/19
Core/Insulation Crimp: Pins 1, 2, 4, 5, 7, 9, 10, 12, 13, 15, 24, 25, 28, 30, 33-35, 39-41, 43-46, 48, 50, 55-57, 59-61, 67, 70, 72, 78-84, 88-90, 92, 93, 96 - J/J
Core/Insulation Crimp: Pins 4, 26, 28, 50-52 - K/K
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)