K20 Engine Control Module X1 (LTG)

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Engine
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	Service Terminal	Tray Name	Core Crimp	Insulation Crimp
I	13579770	J-35616-35 (VT)	J-38125-11A	7116-4152-02	Yazaki 9	2	5
II	19330179	J-35616-64B (LT BU)	J-38125-215A	Not Available	Not Available	Not Available	Not Available

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	(LTG/LYX)-NUG
6	0.5	WH	4499	High Speed GMLAN Serial Data [-] 7	II	(LTG/LYX)-NUG
7	0.5	WH	7494	High Speed GMLAN Serial Data [-] 3	II	-
8	0.5	BU/BK	7493	High Speed GMLAN Serial Data [+] 3	II	-
9	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	II	LTG+(M3H/M3D)
10	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	II	LTG+(M3H/M3D)
11	0.5	BN/RD	1274	Accelerator Pedal Position 5V Reference 2	II	LTG
12	0.5	WH/RD	1164	Accelerator Pedal Position 5 Volt Reference 1	II	LTG
13	0.5	VT/YE	5985	Accessory Wake-Up Serial Data	II	LTG+MM1
14	0.5	VT/GN	439	Run/Crank Ignition 1 Voltage 4	II	LTG+MM1
15	0.5	RD/WH	140	Secondary Fused Battery Positive Voltage 1	II	LTG
16	0.5	VT	5292	Powertrain Main Relay Fused Supply 3	II	LTG
17	0.5	YE	5530	Hood Open Switch Signal	II	KL9+LTG
18	0.5	GY/RD	3053	Turbocharger Intake Pressure Sensor High Reference Bank 1	II	LTG
19 - 22	-	-	-	Not Occupied	-	-
23	0.5	BK/GY	3927	Transmission Internal Mode Switch Feedback Signal	II	LTG+M3D
24	-	-	-	Not Occupied	-	-
25	0.5	BK/YE	5382	Brake Position Sensor Low Reference	II	LTG+MM1
26	-	-	-	Not Occupied	-	-
27	0.5	BK/VT	1272	Accelerator Pedal Position Low Reference 2	II	LTG
28	0.5	BK/BU	1271	Accelerator Pedal Position Low Reference 1	II	LTG
29 - 31	-	-	-	Not Occupied	-	-
32	0.5	YE/VT	6030	Brake Vacuum Sensor Signal	II	KL9+LTG
33	0.5	GN/WH	1162	Accelerator Pedal Position Signal 2	II	LTG
34	0.5	GN/WH	492	Mass Air Flow Sensor Signal	II	LTG
35 - 36	-	-	-	Not Occupied	-	-
37	0.5	BN/RD	2700	A/C Pressure Sensor 5V Reference	II	LTG
38	0.5	GY	4109	Driver Mode Switch 5V Reference	II	LTG+(F48/EPH)
39	0.5	YE/BU	4171	Transmission Input Shaft Speed Sensor Circuit 9V Reference	II	LTG+M3D
40	-	-	-	Not Occupied	-	-
41	0.5	WH/RD	5381	Brake Position Sensor 5V Reference	II	LTG+MM1
42 - 43	-	-	-	Not Occupied	-	-
44	0.5	YE/BK	625	Starter Enable Relay Control	II	KL9+LTG
45	0.5	YE/WH	1161	Accelerator Pedal Position Signal 1	II	LTG
46	-	-	-	Not Occupied	-	-
47	0.5	BU/GY	636	Ambient Air Temperature Sensor Signal	II	LTG
48	0.5	WH/BU	6289	Intake Air Temperature Sensor Signal	II	LTG
49	-	-	-	Not Occupied	-	-
50	0.5	WH/BU	6311	Cruise/ETC/TCC Brake Signal	II	LTG
51	0.5	VT/BU	5291	Powertrain Main Relay Fused Supply 2	II	LTG
52 - 53	-	-	-	Not Occupied	-	-
54	0.5	WH/GY	459	A/C Compressor Clutch Relay Control	II	LTG
55 - 56	-	-	-	Not Occupied	-	-
57	0.5	GN	380	A/C Refrigerant Pressure Sensor Signal	II	LTG
58	0.5	WH/VT	4108	Driver Mode Switch Signal	II	LTG+(F48/EPH)
59	0.5	WH/BU	5726	Ignition Mode Switch Mode Control Backup	II	LTG+M3D
60	0.5	BN/GY	4008	Humidity Sensor Signal	II	LTG
61	0.5	WH/GN	5380	Brake Position Sensor Signal	II	LTG+MM1
62 - 63	-	-	-	Not Occupied	-	-
64	0.5	GN/GY	465	Fuel Pump Primary Relay Control	II	LTG
65	-	-	-	Not Occupied	-	-
66	0.5	GY	5127	Turbocharger Coolant Pump Relay Control	II	LTG+(MAH/MBC/MCX)
67	0.5	YE	5991	Powertrain Relay Coil Control	II	LTG
68 - 69	-	-	-	Not Occupied	-	-
70	0.5	YE/VT	4325	Starter Pinion Solenoid Actuator Relay Control	II	KL9+LTG
71	0.5	BN/WH	419	Check Engine Indicator Control	II	LTG+(NTB/NUB)
72	-	-	-	Not Occupied	-	-
73	2	VT/BU	5290	Powertrain Main Relay Fused Supply 1	I	LTG