K20 Engine Control Module X1 (L5P)

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. 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 Wiring Harness
OEM Connector: 35059716
Service Connector: 19370822
Description: 66-Way F 0.64 MTS-B, 2.8 ATS, 6.3 Ducon Series, Sealed (BK)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	13580829	J-35616-4A (PU)	J-38125-36
II	13584448	J-35616-64B (L-BU)	J-38125-215A
III	19369848	J-35616-42 (RD)	J-38125-215A
IV	Not required	No Tool Required	No Tool Required

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.75	VT/BU	5290	Powertrain Main Relay Fused Supply Voltage 1	I	-
2	0.5	VT/BU	5290	Powertrain Main Relay Fused Supply Voltage 1	I	-
3	-	-	-	Not Occupied	-	-
4	0.5	RD/BN	440	Battery Positive Voltage	I	-
5	2.5	VT/BU	5290	Powertrain Main Relay Fused Supply Voltage 1	III	-
6	2.5	BK/WH	451	Signal Ground	III	-
7	0.5	VT/YE	5985	Accessory Wake-Up Serial Data	II	-
8 - 9	-	-	-	Not Occupied	-	-
10	0.5	GN/WH	492	Mass Air Flow Sensor Signal	II	-
11	0.5	BU/GY	636	Ambient Air Temperature Sensor Signal	II	-
12	-	-	-	Not Occupied	-	-
13	0.5	WH/RD	1164	Accelerator Pedal Position 5V Reference 1	II	-
14	0.5	BN/RD	1274	Accelerator Pedal Position 5V Reference 2	II	-
15	0.5	GN/WH	1162	Accelerator Pedal Position Signal 2	II	-
16	0.5	BK/VT	1272	Accelerator Pedal Position Low Reference 2	II	-
17 - 20	-	-	-	Not Occupied	-	-
21	0.5	YE	2928	Fuel Metering Solenoid Valve High Control	II	-
22	0.5	VT/GN	439	Run/Crank Ignition 1 Voltage	II	-
23	-	-	-	Not Occupied	-	-
24	0.5	WH/BU	6311	Cruise/ETC/TCC Brake Signal	II	-
25	0.5	BN/GY	4008	Humidity Sensor Signal	II	-
26	0.5	BK/BU	61	Ambient Air Temperature Sensor Low Reference	II	-
27	0.5	BK/BU	1271	Accelerator Pedal Position Low Reference 1	II	-
28	0.5	YE/WH	1161	Accelerator Pedal Position Signal 1	II	-
29 - 32	-	-	-	Not Occupied	-	-
33	0.5	BN/WH	419	Check Engine Indicator Control	II	-
34	0.5	GN/BN	507	Wait To Start Indicator Control	II	-
35	0.5	WH/GY	459	Air Conditioning Compressor Clutch Relay Control	II	-
36	0.5	BN/BK	2929	Fuel Metering Solenoid Valve Low Control	II	-
37 - 38	-	-	-	Not Occupied	-	-
39	0.5	WH	4499	High Speed GMLAN Serial Data [-] 7	II	-
40	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	II	-
41 - 42	-	-	-	Not Occupied	-	-
43	0.5	BK/YE	5382	Brake Position Sensor Low Reference	II	-
44	0.5	WH/RD	5381	Brake Position Sensor 5V Reference	II	-
45	0.5	WH/BU	6289	Intake Air Temperature Sensor Signal	II	-
46	0.5	BN/RD	2700	Air Conditioning Pressure Sensor 5V Reference	II	-
47	0.5	GN	380	Air Conditioning Refrigerant Pressure Sensor Signal	II	-
48	0.5	BK/BN	5514	Air Conditioning Refrigerant Pressure Sensor Low Reference	II	-
49	-	-	-	Not Occupied	-	-
50	0.5	WH/BK	2366	Cooling Fan Speed Control Signal	II	-
51	0.5	YE	5991	Powertrain Relay Coil Control	II	-
52 - 53	-	-	-	Not Occupied	-	-
54	0.5	BU/BN	4498	High Speed GMLAN Serial Data [+] 7	II	-
55	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	II	-
56 - 57	-	-	-	Not Occupied	-	-
58	0.5	GN/VT	4621	Engine Control Module LIN Bus 1	II	-
59	0.5	WH/GN	5380	Brake Position Sensor Signal	II	-
60	0.5	BK/VT	2760	Intake Air Temperature Sensor Low Reference	II	-
61	- 0.5	BU/RD GY	460 4109	Engine Control Sensors 5 Volt Reference 1 Driver Mode Switch 5V Reference	IV II	- -
62	0.5	WH/BN	2203	Enhanced Driver Mode 2 Switch Signal	II	-
63	0.5	BK/VT	3109	Economy Mode Switch Low Reference	II	-
64	-	-	-	Not Occupied	-	-
65	0.5	YE/BK	625	Starter Enable Relay Control	II	-
66	0.5	GN/GY	465	Fuel Pump Primary Relay Control	II	-