K20 Engine Control Module X1 (LYX-NUG)

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information Harness Type:Engine Wiring Harness OEM Connector: 34566-0303 Service Connector: 13574782 Description: 73 -Way F 0.64, 2.8 Series, Sealed (BK with BU Terminal Position Assurance)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	13587518	J-35616-35 (VT)	J-38125-11A
II	19351723	J-35616-64B (LT BU)	J-38125-213
III	Not required	Not Available	No Tool Required

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1 - 4	-	-	-	Not Occupied	-	-
5	0.5	BU / BN	4498	High Speed GMLAN Serial Data [+] 7	II	LYX-NUG
6	0.5	WH	4499	High Speed GMLAN Serial Data [-] 7	II	LYX-NUG
7	0.5	WH	7494	High Speed GMLAN Serial Data [-] 3	II	KL9+LYX-EPH-NUG
8	0.5	BU / BK	7493	High Speed GMLAN Serial Data [+] 3	II	KL9+LYX-EPH-NUG
9	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	II	LYX+MNH-NUG
10	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	II	LYX+MNH-NUG
11	0.5	BN / RD	1274	Accelerator Pedal Position 5V Reference 2	II	LYX-NUG
12	0.5	WH / RD	1164	Accelerator Pedal Position 5V Reference 1	II	LYX-NUG
13	0.5	VT / YE	5985	Accessory Wake-Up Serial Data	II	LYX-NUG
14	0.5	VT / GN	439	Run/Crank Ignition 1 Voltage	II	LYX-NUG
15	0.5	RD / WH	140	Battery Positive Voltage	II	LYX-NUG
16	0.5	VT	5292	Powertrain Main Relay Fused Supply Voltage 3	II	LYX-NUG
17	0.5	YE	5530	Hood Open Switch Signal	II	LYX+KL9+NTM
18	0.5	GY / RD	3053	Turbocharger Intake Pressure Sensor High Reference Bank 1	II	LYX-NUG
19 - 22	-	-	-	Not Occupied	-	-
23	0.5	BK / GY	3927	Transmission Internal Mode Switch Feedback Signal	III	LYX-NUG
24	-	-	-	Not Occupied	-	-
25	0.5	BK / YE	5382	Brake Position Sensor Low Reference	II	LYX-NUG
26	-	-	-	Not Occupied	-	-
27	0.5	BK / VT	1272	Accelerator Pedal Position Low Reference 2	II	LYX-NUG
28	0.5	BK / BU	1271	Accelerator Pedal Position Low Reference 1	II	LYX-NUG
29 - 31	-	-	-	Not Occupied	-	-
32	0.5	YE / VT	6030	Brake Vacuum Sensor Signal	II	LYX+KL9-NUG
33	0.5	GN / WH	1162	Accelerator Pedal Position Signal 2	II	LYX-NUG
34	0.5	GN / WH	492	Mass Air Flow Sensor Signal	II	LYX-NUG
35 - 36	-	-	-	Not Occupied	-	-
37	0.5	BN / RD	2700	A/C Pressure Sensor 5V Reference	II	LYX-NUG
38	0.5	GY	4109	Driver Mode Switch 5V Reference	II	LYX+(F48/EPH)-NUG
39	0.5	YE / BU	4171	Transmission Input Shaft Speed Sensor Circuit 9V Reference	III	LYX-NUG
40	-	-	-	Not Occupied	-	-
41	0.5	WH / RD	5381	Brake Position Sensor 5V Reference	II	LYX-NUG
42 - 43	-	-	-	Not Occupied	-	-
44	0.5	YE / BK	625	Starter Enable Relay Control	II	-
45	0.5	YE / WH	1161	Accelerator Pedal Position Signal 1	II	LYX-NUG
46	-	-	-	Not Occupied	-	-
47	0.5	BU / GY	636	Ambient Air Temperature Sensor Signal	II	LYX-NUG
48	0.5	WH / BU	6289	Intake Air Temperature Sensor Signal	II	LYX-NUG
49	0.5	WH / GY	1786	Transmission Park/Neutral Signal 1	II	LYX-M3U-NUG
50	0.5	WH / BU	6311	Cruise/ETC/TCC Brake Signal	II	LYX-NUG
51	0.5	VT / BU	5291	Powertrain Main Relay Fused Supply Voltage 2	II	LYX-NUG
52 - 53	-	-	-	Not Occupied	-	-
54	0.5	WH / GY	459	A/C Compressor Clutch Relay Control	II	LYX-NUG
55 - 56	-	-	-	Not Occupied	-	-
57	0.5	GN	380	A/C Refrigerant Pressure Sensor Signal	II	LYX-NUG
58	0.5	WH / VT	4108	Driver Mode Switch Signal	II	LYX+(F48/EPH)-NUG
59	0.5	WH / BU	5726	Ignition Mode Switch Mode Control Backup	III	LYX-NUG
60	0.5	BN / GY	4008	Humidity Sensor Signal	II	LYX-NUG
61	0.5	WH / GN	5380	Brake Position Sensor Signal	II	LYX-NUG
62 - 63	-	-	-	Not Occupied	-	-
64	0.5	GN / GY	465	Fuel Pump Primary Relay Control	II	LYX-NUG
65	-	-	-	Not Occupied	-	-
66	0.5	GY	5127	Turbocharger Coolant Pump Relay Control	II	LYX+(MAH/MBC/MCX)-NUG
67	0.5	YE	5991	Powertrain Relay Coil Control	II	LYX-NUG
68 - 69	-	-	-	Not Occupied	-	-
70	0.5	YE / VT	4325	Starter Pinion Solenoid Actuator Relay Control	II	KL9+LYX-NUG
71	0.5	BN / WH	419	Check Engine Indicator Control	II	LYX+NTN-NUG
72	-	-	-	Not Occupied	-	-
73	2	VT / BU	5290	Powertrain Main Relay Fused Supply Voltage 1	I	LYX-NUG