X351 Chassis Wiring Harness to Fuel Pump Power Control Module Wiring Harness (L5P+N2N)

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	Courtesy of GENERAL MOTORS COMPANY
Connector Part Information Harness Type: Chassis Wiring Harness OEM Connector: 35016652 Service Connector: 19371185 Description: 55-Way F 1.2 OCS, 2.8, 6.3 CTS Series, Sealed (BK)	Connector Part Information Harness Type: Fuel Pump Power Control Module Wiring Harness OEM Connector: 35205173 Service Connector: Service by Harness - See Part Catalog Description: 55-Way M 1.2 OCS, 2.8, 6.3 CTS Series, Sealed (BK)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	19332901	J-35616-35 (VT)	J-38125-212
II	19370818	J-35616-12 (BU)	J-38125-215A
III	19371217	J-35616-12 (BU)	J-38125-553
IV	84634921	J-35616-42 (RD)	J-38125-212
V	Not required	J-35616-13 (BU)	No Tool Required
VI	Not required	J-35616-17 (L-GN)	No Tool Required
VII	Not required	J-35616-32 (OG)	No Tool Required
VIII	Not required	J-35616-5 (PU)	No Tool Required

Pin	Size	Color	Circuit	Terminal Type ID	Option	Function	Pin	Size	Color	Circuit	Terminal Type ID	Option
1	2.5	GY	120	IV	-	Fuel Pump Control	1	2.5	GY	120	VII	-
2	0.75	YE/BU	1465	II	-	Secondary Fuel Pump Relay Control	2	0.75	YE/BU	1465	V	-
3	-	-	-	-	-	Not Occupied	3	-	-	-	-	-
4	0.5	BK/VT	412	II	-	Fuel Filter Temperature Sensor Low Reference	4	0.5	BK/VT	412	VI	-
5	-	-	-	-	-	Not Occupied	5	-	-	-	-	-
6	0.5	VT/GN	439	II	-	Run/Crank Ignition 1 Voltage	6	0.5	VT/GN	439	VI	-
7	-	-	-	-	-	Not Occupied	7	-	-	-	-	-
8	0.5	BN/VT	455	II	-	Fuel Filter Temperature Signal	8	0.5	BN/VT	455	VI	-
9	-	-	-	-	-	Not Occupied	9	-	-	-	-	-
10	0.5	GN/GY	465	II	-	Fuel Pump Primary Relay Control	10	0.5	GN/GY	465	VI	-
11	-	-	-	-	-	Not Occupied	11	-	-	-	-	-
12	0.75	BU/VT	1589	II	-	Primary Fuel Level Sensor Signal	12	0.75	BU/VT	1589	V	-
13	1	BK/GN	1580	IV	-	Fuel Pump Low Reference	13	1	BK/GN	1580	VII	-
14	2.5	RD/VT	5340	I	-	Battery Positive Voltage	14	2.5	RD/VT	5340	VIII	-
15	-	-	-	-	-	Not Occupied	15	-	-	-	-	-
16	0.5	BU/WH	1937	II	-	Secondary Fuel Level Sensor Signal	16	0.5	BU/WH	1937	VI	-
17	-	-	-	-	-	Not Occupied	17	-	-	-	-	-
18	0.5	BK/GN	6281	II	-	Fuel Level Sensor Low Reference	18	0.5	BK/GN	6281	VI	-
19	-	-	-	-	-	Not Occupied	19	-	-	-	-	-
20	0.5	BK/BU	6282	II	-	Fuel Level Sensor 2 Low Reference	20	0.5	BK/BU	6282	VI	-
21	-	-	-	-	-	Not Occupied	21	-	-	-	-	-
22	0.5	BU/YE	6861	II	-	Water In Fuel Sensor Signal	22	0.5	BU/YE	6861	VI	-
23	0.5	WH/RD	6862	II	-	Water In Fuel Sensor Voltage Reference	23	0.5	WH/RD	6862	VI	-
24	0.5	BK/BU	6863	II	-	Water In Fuel Sensor Low Reference	24	0.5	BK/BU	6863	VI	-
25	-	-	-	-	-	Not Occupied	25	-	-	-	-	-
26	0.5	BN/RD	7445	II	-	Fuel Line Pressure Sensor 5V Reference	26	0.5	BN/RD	7445	VI	-
27	1	BU/GN	2120	I	-	Secondary Fuel Pump Control	27	1	BU/GN	2120	VIII	-
28	2.5	YE/GY	4137	I	-	Fuel Pump Supply Voltage Phase 2	28	2.5	YE/GY	4137	VIII	-
29	-	-	-	-	-	Not Occupied	29	-	-	-	-	-
30	2.5	WH/BN	4138	I	-	Fuel Pump Supply Voltage Phase 3	30	2.5	WH/BN	4138	VIII	-
31 - 42	-	-	-	-	-	Not Occupied	31 - 42	-	-	-	-	-
43	2.5	BK	1750	IV	-	Ground	43	2.5	BK	1750	VII	-
44	0.75	BU/WH	7446	II	-	Fuel Pressure Sensor Signal	44	0.75	BU/WH	7446	V	-
45	-	-	-	-	-	Not Occupied	45	-	-	-	-	-
46	0.5	BK/YE	7447	II	-	Fuel Pressure Sensor Low Reference	46	0.5	BK/YE	7447	VI	-
47	-	-	-	-	-	Not Occupied	47	-	-	-	-	-
48	0.5	VT/GN	4320	II	-	Powertrain Sensor Bus Enable	48	0.5	VT/GN	4320	VI	-
49	-	-	-	-	-	Not Occupied	49	-	-	-	-	-
50	0.5	BU/BN	4498	II	-	High Speed GMLAN Serial Data [+] 7	50	0.5	BU/BN	4498	VI	-
51	-	-	-	-	-	Not Occupied	51	-	-	-	-	-
52	0.5	WH	4499	II	-	High Speed GMLAN Serial Data [-] 7	52	0.5	WH	4499	VI	-
53	-	-	-	-	-	Not Occupied	53	-	-	-	-	-
54	1	BN	7444	III	-	Fuel Pump Assembly Shield Ground	54	0.75	BN	7444	V	-
55	-	-	-	-	-	Not Occupied	55	-	-	-	-	-