K20 Engine Control Module X1 (LTG)

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. 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: 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