K20 Engine Control Module X1 Connector End View (LFX)

WARNING: This page is about a different car, the 2014 Chevrolet Caprice. However, it is still accessible from the selected car via links, so may be relevant.

Connector Part Information

Harness Type: Engine
OEM Connector: 12615655
Service Connector: 13574946
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	Core Crimp	Insulation Crimp
I	19119437	J-35616-35 (VT)	J-38125-561	Not Available	Not Available	Not Available	Not Available
II	13575291	J-35616-35 (VT)	J-38125-11A	Not Available	Not Available	Not Available	Not Available

K20 Engine Control Module X1 Connector End View (LFX)

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	-	-	-	Not Occupied	-	-
2	0.5	BU/WH	7446	Fuel Line Pressure Sensor Signal	I	LFW/LFX
3	-	-	-	Not Occupied	-	-
4	0.5	YE/WH	3200	Throttle Inlet Absolute Pressure Sensor Signal	I	LFW/LFX
5	0.5	WH/RD	3201	Throttle Inlet Absolute Pressure Sensor 5V Reference	I	LFW/LFX
6	0.5	GN	380	A/C Refrigerant Pressure Sensor Signal	I	LFW/LFX
7	-	-	-	Not Occupied	-	-
8	0.5	BK/YE	7447	Fuel Line Pressure Sensor Low Reference	I	LFW/LFX
9	0.5	BU/WH	890	Fuel Tank Pressure Sensor Signal	I	EF7/Z49+LFW/LFX
10	0.5	YE/RD	2709	Fuel Tank Pressure Sensor 5 Volt Reference	I	EF7/Z49+LFW/LFX
11-13	-	-	-	Not Occupied	-	-
14	0.5	WH/RD	1164	Accelerator Pedal Position 5 Volt Reference (1)	I	LFW/LFX
15	0.5	YE/WH	1161	Accelerator Pedal Position Signal (1)	I	LFW/LFX
16-20	-	-	-	Not Occupied	-	-
21	0.5	BN/RD	2700	A/C Pressure Sensor 5 Volt Reference	I	LFW/LFX
22	0.5	BK/BN	5514	A/C Refrigerant Pressure Sensor Low Reference	I	LFW/LFX
23	-	-	-	Not Occupied	-	-
24	0.5	BN/RD	7445	Fuel Line Pressure Sensor 5V Reference	I	LFW/LFX
25	0.5	BU/VT	1589	Primary Fuel Level Sensor Signal	I	LFW/LFX
26	0.5	BK/GN	6281	Fuel Level Sensor Low Reference	I	LFW/LFX
27	0.5	BU/WH	1937	Secondary Fuel Level Sensor Signal	I	LFW/LFX
28-29	-	-	-	Not Occupied	-	-
30	0.5	BK/BU	1271	Accelerator Pedal Position Low Reference (1)	I	LFW/LFX
31	-	-	-	Not Occupied	-	-
32	0.5	WH/GY	459	A/C Compressor Clutch Relay Control	I	LFW/LFX
33	0.5	BN/RD	1274	Accelerator Pedal Position 5 Volt Reference (2)	I	LFW/LFX
34	0.5	GN/WH	1162	Accelerator Pedal Position Signal (2)	I	LFW/LFX
35	-	-	-	Not Occupied	-	-
36	0.5	BU/BK	7493	High Speed GMLAN Serial Data (+)(3)	I	LFW/LFX
37	0.5	WH	7494	High Speed GMLAN Serial Data (-)(3)	I	LFW/LFX
38	0.5	WH	1579	Fuel Temperature/Composition Signal	I	LFW/LFX
39	0.5	BU	2500	High Speed GMLAN Serial Data (+) (1)	I	MYA
40	0.5	WH	2501	High Speed GMLAN Serial Data (-) (1)	I	MYA
41-43	-	-	-	Not Occupied	-	-
44	0.5	GY	5660	Fuel Pump Controller Data Out Signal	I	LFW/LFX
45	-	-	-	Not Occupied	-	-
46	0.5	BN/WH	419	Check Engine Indicator Control	I	LFW/LFX
47	0.5	WH/RD	5381	Brake Position Sensor 5 Volt Reference	I	MYA+LFW/LFX
48	0.5	WH/GN	5380	Brake Position Sensor Signal	I	MYA+LFW/LFX
49-50	-	-	-	Not Occupied	-	-
51	0.5	VT/GN	439	Run/Crank Ignition 1 Voltage	I	LFW/LFX
52	0.5	RD/BN	440	Battery Positive Voltage	I	LFW/LFX
53	0.5	BK/VT	1272	Accelerator Pedal Position Low Reference (2)	I	LFW/LFX
54-56	-	-	-	Not Occupied	-	-
57	0.5	WH/BU	6311	Cruise/ETC/TCC Brake Signal	I	MYA+LFW/LFX
58	-	-	-	Not Occupied	-	-
59	0.5	WH/BK	2366	Cooling Fan Control Relay Speed Signal	I	LFW/LFX
60-61	-	-	-	Not Occupied	-	-
62	0.5	VT/BU	5291	Powertrain Main Relay Fused Supply (2)	I	LFW/LFX
63	0.5	VT/GY	6386	Starter Enable Relay (PPEI 3) Control	I	LFW/LFX
64-65	-	-	-	Not Occupied	-	-
66	0.5	WH	1310	EVAP Canister Vent Solenoid Control	I	EF7/Z49+LFW/LFX
67	0.5	VT/BU	5292	Powertrain Main Relay Fused Supply (3)	I	LFW/LFX
68	0.5	BK/YE	5382	Brake Position Sensor Low Reference	I	MYA+LFW/LFX
69	-	-	-	Not Occupied	-	-
70	0.5	VT/YE	5985	Accessory Wakeup Serial Data	I	MYA+LFW/LFX
71	-	-	-	Not Occupied	-	-
72	0.5	YE	5991	Powertrain Relay Coil Control	I	LFW/LFX
73	1.5	VT/BU	5290	Powertrain Main Relay Fused Supply (1)	II	LFW/LFX