K20 Engine Control Module X1 (LCV)

WARNING: This page is about a different car, the 2018 Buick Envision. 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: 34566-7673
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-35616-4A (PU)	J-38125-11A	7116-4152-02	Yazaki 9	2	5
II	19330179	J-35616-64B (LT BU)	J-38125-12A	Not Available	Not Available	Not Available	Not Available

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1 - 6	-	-	-	Not Occupied	-	-
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	-
10	0.5	WH	2501	High Speed GMLAN Serial Data (-) 1	II	-
11	0.5	BN/RD	1274	Accelerator Pedal Position 5V Reference 2	II	-
12	0.5	WH/RD	1164	Accelerator Pedal Position 5V Reference 1	II	-
13	0.5	VT/YE	5985	Accessory Wakeup Serial Data	II	-
14	0.5	VT/GN	439	Run/Crank Ignition 1 Voltage	II	-
15	0.5	RD/WH	140	Battery Positive Voltage	II	-
16	0.75	VT/BU	5292	Powertrain Main Relay Fused Supply 3	II	-
17	0.5	YE	5530	Hood Open Switch Signal	II	-
18 - 24	-	-	-	Not Occupied	-	-
25	0.5	BK/YE	5382	Brake Position Sensor Low Reference	II	-
26	-	-	-	Not Occupied	-	-
27	0.5	BK/VT	1272	Accelerator Pedal Position Low Reference 2	II	-
28	0.5	BK/BU	1271	Accelerator Pedal Position Low Reference 1	II	-
29 - 31	-	-	-	Not Occupied	-	-
32	0.5	YE/VT	6030	Brake Vacuum Sensor Signal	II	-
33	0.5	GN/WH	1162	Accelerator Pedal Position Signal 2	II	-
34	0.5	GN/WH	492	Mass Air Flow Sensor Signal	II	-
35 - 36	-	-	-	Not Occupied	-	-
37	0.5	BN/RD	2700	A/C Pressure Sensor 5V Reference	II	-
38 - 40	-	-	-	Not Occupied	-	-
41	0.5	WH/RD	5381	Brake Position Sensor 5V Reference	II	-
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	-
46	-	-	-	Not Occupied	-	-
47	0.5	BU/GY	636	Outside Ambient Air Temperature Sensor Signal	II	-
48	0.5	WH/BU	6289	Induction Air Temperature Sensor Signal	II	-
49	0.5	WH/GY	1786	Transmission Park/Neutral Signal 1	II	LCV+MHG
50	0.5	WH/BU	6311	Cruise/ETC/TCC Brake Signal	II	-
51	0.5	VT/BU	5291	Powertrain Main Relay Fused Supply 2	II	-
52	0.5	WH/BK	2366	Cooling Fan Control Relay Speed Signal	II	-
53	-	-	-	Not Occupied	-	-
54	0.5	WH/GY	459	A/C Compressor Clutch Relay Control	II	-
55 - 56	-	-	-	Not Occupied	-	-
57	0.5	GN	380	A/C Refrigerant Pressure Sensor Signal	II	-
58 - 59	-	-	-	Not Occupied	-	-
60	0.5	BN/GY	4008	Humidity Sensor Signal	II	-
61	0.5	WH/GN	5380	Brake Position Sensor Signal	II	-
62 - 63	-	-	-	Not Occupied	-	-
64	0.5	GY	5660	Fuel Pump Controller Data Out Signal	II	-
65	0.5	WH	1310	EVAP Canister Vent Solenoid Control	II	LCV+NT7/NU5
66	0.5	GY	5127	After Boil Heater Relay Control	II	-
67	0.5	YE	5991	Powertrain Relay Coil Control	II	-
68 - 69	-	-	-	Not Occupied	-	-
70	0.5	YE/VT	4325	Starter Pinion Solenoid Relay Control	II	-
71	0.5	BN/WH	419	Check Engine Indicator Control	II	-
72	-	-	-	Not Occupied	-	-
73	2	VT/BU	5290	Powertrain Main Relay Fused Supply 1	I	-