K20 Engine Control Module X1 (LTG)

WARNING: This page is about a different car, the 2018 Cadillac CTS. 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: 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 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 - 8	-	-	-	Not Occupied	-	-
9	0.5	BU	2500	High Speed GMLAN Serial Data (+) 1	II	LTG
10	0.5	WH	2501	High Speed GMLAN Serial Data (-) 1	II	LTG
11	0.5	BN/RD	1274	Accelerator Pedal Position 5V Reference 2	II	LTG
12	0.5	WH/RD	1164	Accelerator Pedal Position 5V Reference 1	II	LTG
13	0.5	VT/YE	5985	Accessory Wakeup Serial Data	II	LTG
14	0.5	VT/GN	439	Run/Crank Ignition 1 Voltage	II	-
15	0.5	RD/BN	440	Battery Positive Voltage	II	LTG
16	0.5	VT/BU	5292	Powertrain Main Relay Fused Supply 3	II	LTG
17	0.5	YE	4063	Hood Status A Signal	II	LTG
18	0.5	GY/RD	3053	Turbo Intake Pressure Sensor High Reference Bank 1	II	LTG
19 - 24	-	-	-	Not Occupied	-	-
25	0.5	BK/YE	5382	Brake Position Sensor Low Reference	II	LTG
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	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	-
38	0.5	GY	4109	Driver Mode Switch 5V Reference	II	LTG
39 - 40	-	-	-	Not Occupied	-	-
41	0.5	WH/RD	5381	Brake Position Sensor 5V Reference	II	LTG
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	LTG
46	-	-	-	Not Occupied	-	-
47	0.5	BU/GY	636	Outside Ambient Air Temperature Sensor Signal	II	LTG
48	0.5	WH/BU	6289	Induction Air Temperature Sensor Signal	II	LTG
49	0.5	WH/GY	1786	Transmission Park/Neutral Signal 1	II	LTG
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	0.5	WH/BK	2366	Cooling Fan Control Relay Speed Signal	II	LTG
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	-
58	0.5	WH/VT	4108	Driver Mode Switch Signal	II	LTG
59	-	-	-	Not Occupied	-	-
60	0.5	BN/GY	4008	Humidity Sensor Signal	II	LTG
61	0.5	WH/GN	5380	Brake Position Sensor Signal	II	LTG
62 - 63	-	-	-	Not Occupied	-	-
64	0.5	GN/GY	465	Fuel Pump Primary Relay Control	II	LTG
65	0.5	WH	1310	EVAP Canister Vent Solenoid Control	II	LTG
66	0.5	GY	5127	After Boil Heater Relay Control	II	LTG
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	LTG
71	0.5	BN/WH	419	Check Engine Indicator Control	II	LTG
72	-	-	-	Not Occupied	-	-
73	2	VT/BU	5290	Powertrain Main Relay Fused Supply 1	I	LTG