K20 Engine Control Module X3 (LFX)

WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.

Connector Part Information

Harness Type: Engine
OEM Connector: 34566-4023
Service Connector: 19299787
Description: 73-Way F MX123 34566 Series Sealed (BK with GY Terminal Position Assurance)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool	Service Terminal	Tray	Core Crimp	Insulation Crimp
I	13575575	J-35616-64B (L-BU)	J-38125-213	33467-0005	23	J	J
II	13575797	J-35616-35 (VT)	J-38125-11A	7116-4152-02	9	A	5

K20 Engine Control Module X3 (LFX)

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1-7	-	-	-	Not Occupied	-	-
8	0.5	L-BU	410	Engine Coolant Temperature Sensor Signal	I	-
9	0.5	YE/L-BU	231	Oil Pressure Switch Signal	I	-
10	0.5	VT/L-BU	6270	Crankshaft 60X Sensor Voltage	I	-
11-12	-	-	-	Not Occupied	-	-
13	0.5	BN/L-BU	2126	Ignition Control (6)	I	-
14	0.5	L-BU/GY	2125	Ignition Control (5)	I	-
15	0.5	BK/GY	2130	Low Reference	I	-
16	0.5	YE	7301	High Pressure Fuel Pump Actuator High - Control	I	-
17-23	-	-	-	Not Occupied	-	-
24	0.5	BK/BN	2761	Low Reference	I	-
25	0.5	BK/VT	6272	Low Reference	I	-
26	0.5	L-GN	6271	Crankshaft 60X Sensor Signal	I	-
27	0.5	YE/L-BU	2124	Ignition Control (4)	I	-
28	0.5	L-GN/L-BU	2123	Ignition Control (3)	I	-
29	0.5	L-BU/WH	2122	Ignition Control (2)	I	-
30	0.5	L-BU/VT	2121	Ignition Control (1)	I	-
31	0.5	BK/L-BU	2129	Low Reference	I	-
32	0.5	VT/BK	7300	High Pressure Fuel Pump Actuator Low - Control	I	-
33	0.5	YE/VT	5275	Camshaft Position Intake Sensor (1)	I	-
34	0.5	GY/L-BU	5300	Camshaft Position Intake Sensor Supply Voltage (1)	I	-
35	0.5	VT/BK	5273	Camshaft Position Exhaust Sensor (1)	I	-
36	0.5	YE	5276	Camshaft Position Intake Sensor (2)	I	-
37	0.5	WH/L-BU	5302	Camshaft Position Intake Sensor Supply Voltage (2)	I	-
38	0.5	VT/L-BU	5274	Camshaft Position Exhaust Sensor (2)	I	-
39	0.5	VT/BN	5284	Camshaft Phaser Intake Solenoid (1)	I	-
40	0.5	GY/L-BU	5282	Camshaft Phaser Exhaust Solenoid (1)	I	-
41	0.5	L-GN	5272	Camshaft Phaser Intake Solenoid (2)	I	-
42	0.5	L-GN/BN	5283	Camshaft Phaser Exhaust Solenoid (2)	I	-
43-45	-	-	-	Not Occupied	-	-
46	0.75	GY/L-BU	4804	Direct Fuel Injector (DFI) High Voltage Control Cylinder 4	I	-
47	0.75	WH/L-GN	4805	Direct Fuel Injector (DFI) High Voltage Control Cylinder 5	I	-
48	0.75	L-BU	4802	Direct Fuel Injector (DFI) High Voltage Control Cylinder 2	I	-
49	-	-	-	Not Occupied	-	-
50	0.75	L-GN	4803	Direct Fuel Injector (DFI) High Voltage Control Cylinder 3	I	-
51	0.75	VT/L-GN	4806	Direct Fuel Injector (DFI) High Voltage Control Cylinder 6	I	-
52	0.75	BN	4801	Direct Fuel Injector (DFI) High Voltage Control Cylinder 1	I	-
53	0.5	BK/L-GN	5301	Low Reference	I	-
54	0.5	GY/YE	5297	Camshaft Position Exhaust Sensor Supply Voltage (1)	I	-
55	0.5	BK/GY	5296	Low Reference	I	-
56	0.5	BK/VT	5303	Low Reference	I	-
57	0.5	L-GN/BN	5298	Camshaft Position Exhaust Sensor Supply Voltage (2)	I	-
58	0.5	BK/BN	5299	Low Reference	I	-
59	0.5	BK/BN	6753	Low Reference	I	-
60	0.5	BK/VT	6754	Low Reference	I	-
61	0.5	BK/VT	6755	Low Reference	I	-
62	0.5	BK/GY	6756	Low Reference	I	-
63-65	-	-	-	Not Occupied	-	-
66	0.75	L-BU/WH	4904	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 4	I	-
67	0.75	L-GN/WH	4905	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 5	I	-
68	0.75	L-BU/GY	4902	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 2	I	-
69	-	-	-	Not Occupied	-	-
70	0.75	L-GN/GY	4903	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3	I	-
71	0.75	VT/GY	4906	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3	I	-
72	0.75	BN/WH	4901	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 1	I	-
73	2.5	BK/WH	451	Ground	II	-