K20 Engine Control Module X3 (LT4)

WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Engine
OEM Connector: 12603597
Service Connector: 13574948
Description: 73-Way F 0.64, 2.8 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 Name	Core Crimp	Insulation Crimp
I	19330179	J-35616-64B (LT BU)	J-38125-12A	Not Available	Not Available	Not Available	Not Available
II	19368324	J-35616-4A (PU)	J-38125-11A	7116-4152-02	Yazaki 9	A	5

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.5	YE/BN	331	Oil Pressure Sensor Signal	I	LT4
2	0.5	WH/RD	2705	Oil Pressure Sensor 5V Reference	I	LT4
3	0.5	BU/GY	433	Barometric Pressure Sensor Signal	I	LT4
4 - 6	-	-	-	Not Occupied	-	-
7	0.5	BN/BU	357	Oil Temperature Sensor Signal	I	LT4
8	0.5	GN/VT	2032	Coolant Temperature Sensor Signal	I	LT4
9	-	-	-	Not Occupied	-	-
10	0.5	VT/BU	6270	Crankshaft 60X Sensor 5V Reference	I	LT4
11	0.5	GN/BU	2123	Ignition Control 3	I	LT4
12	0.5	YE/BU	2124	Ignition Control 4	I	LT4
13	0.5	BU/GY	2125	Ignition Control 5	I	LT4
14	0.5	BN/BU	2126	Ignition Control 6	I	LT4
15	0.5	BK/GY	2130	Ignition Control Low Reference Bank 2	I	LT4
16	0.75	YE	7301	High Pressure Fuel Pump Actuator High - Control	I	LT4
17	0.5	BK/VT	2755	Oil Pressure Sensor Low Reference	I	LT4
18 - 22	-	-	-	Not Occupied	-	-
23	0.5	BK/BN	6273	Oil Temperature Sensor Low Reference	I	LT4
24	0.5	BK/BN	2761	Coolant Temperature Sensor Low Reference	I	LT4
25	0.5	BK/VT	6272	Crankshaft 60X Sensor Low Reference	I	LT4
26	0.5	GN	6271	Crankshaft 60X Sensor Signal	I	LT4
27	0.5	BU/WH	2122	Ignition Control 2	I	LT4
28	0.5	GN/GY	2127	Ignition Control 7	I	LT4
29	0.5	VT/WH	2128	Ignition Control 8	I	LT4
30	0.5	BU/VT	2121	Ignition Control 1	I	LT4
31	0.5	BK/BU	2129	Ignition Control Low Reference Bank 1	I	LT4
32	0.75	VT/BK	7300	High Pressure Fuel Pump Actuator Low - Control	I	LT4
33	0.5	YE/VT	5275	Camshaft Position Intake Sensor 1	I	LT4
34	0.5	GY/BU	5300	Camshaft Position Intake Sensor Control 1	I	LT4
35 - 38	-	-	-	Not Occupied	-	-
39	0.5	VT/BN	5284	Camshaft Phaser Intake Solenoid 1	I	LT4
40 - 42	-	-	-	Not Occupied	-	-
43	0.5	GY	5493	Cylinder Shutoff Solenoid Control 3	I	LT4
44	0.5	YE/BU	5494	Cylinder Shutoff Solenoid Control 4	I	LT4
45	0.5	GY/BU	4804	Direct Fuel Injector (DFI) High Voltage Control Cylinder 4	I	LT4
46	0.5	BU	4802	Direct Fuel Injector (DFI) High Voltage Control Cylinder 2	I	LT4
47	0.5	VT/GN	4806	Direct Fuel Injector (DFI) High Voltage Control Cylinder 6	I	LT4
48	0.5	GY	4808	Direct Fuel Injector (DFI) High Voltage Control Cylinder 8	I	LT4
49	0.5	GN	4803	Direct Fuel Injector (DFI) High Voltage Control Cylinder 3	I	LT4
50	0.5	YE/GY	4807	Direct Fuel Injector (DFI) High Voltage Control Cylinder 7	I	LT4
51	0.5	WH/GN	4805	Direct Fuel Injector (DFI) High Voltage Control Cylinder 5	I	LT4
52	0.5	BN	4801	Direct Fuel Injector (DFI) High Voltage Control Cylinder 1	I	LT4
53	0.5	BK/GN	5301	Camshaft Position Intake Sensor Low Reference 1	I	LT4
54 - 58	-	-	-	Not Occupied	-	-
59	0.5	BK/BN	6753	Cam Phaser W Low Reference	I	LT4
60 - 62	-	-	-	Not Occupied	-	-
63	0.5	BU	5491	Cylinder Shutoff Solenoid Control 1	I	LT4
64	0.5	GN	5492	Cylinder Shutoff Solenoid Control 2	I	LT4
65	0.5	BU/WH	4904	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 4	I	LT4
66	0.5	BU/GY	4902	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 2	I	LT4
67	0.5	VT/GY	4906	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 6	I	LT4
68	0.5	GY/WH	4908	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 8	I	LT4
69	0.5	GN/GY	4903	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3	I	LT4
70	0.5	WH/YE	4907	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 7	I	LT4
71	0.5	GN/WH	4905	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 5	I	LT4
72	0.5	BN/WH	4901	Direct Fuel Injector (DFI) High Voltage Supply Cylinder 1	I	LT4
73	3	BK/WH	451	Signal Ground	II	LT4