X350 Fuel Tank Harness to Body Harness

WARNING: This page is about a different car, the 2021 GMC Terrain and 2021 Chevrolet Equinox. 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: Fuel Tank Harness OEM Connector: 34985-1607 Service Connector: Service by Harness - Description: 16 -Way F 1.5, 2.8 MX Series, Sealed (GY)	Connector Part Information Harness Type: Body Harness OEM Connector: 34986-2032 Service Connector: Not Available Description: 16 -Way M 1.5, 2.8 MX Series, Sealed (GY)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	Not required	J-35616-14 (GN)	No Tool Required
II	Not required	J-35616-35 (VT)	No Tool Required
III	19119395	J-35616-3 (GY)	J-38125-217
IV	Pending	J-35616-5 (PU)	J-38125-12A

Pin	Size	Color	Circuit	Terminal Type ID	Option	Function	Pin	Size	Color	Circuit	Terminal Type ID	Option
1	2.5	RD / BU	3240	II	-	Battery Positive Voltage	1	2.5	RD / BU	3240	IV	-
2	0.5	WH / BU	5986	I	-	Serial Data Communication Enable	2	0.35 0.35 0.35	VT / GN WH / BU WH / BU	4320 5986 5986	III III III	(LTG/LYX)+(NUG)-EPH) (EPH+(LYX/LTG)+(NUG)) (LTG/LYX)-NUG
3	0.5	GN / GY	465	I	-	Fuel Pump Primary Relay Control	3	0.35	GN / GY	465	III	-
4	-	-	-	-	-	Battery Positive Voltage	4	0.35	RD / VT	542	III	-
5	0.5	GN / BU	3889	I	-	Powertrain Sensor Bus Relay Control	5	0.35	GN / BU	3889	III	(LTG/LYX)-NUG
6	-	-	-	-	-	Not Occupied	6	-	-	-	-	-
7	0.5	VT / GN	39	I	-	Run/Crank Ignition 1 Voltage	7	0.5	VT / GN	39	III	(LTG/LYX)-NUG
8	-	-	-	-	-	Not Occupied	8	-	-	-	-	-
9	2.5	BK	1950	II	-	Ground	9	2.5	BK	1950	IV	-
10 - 13	-	-	-	-	-	Not Occupied	10 - 13	-	-	-	-	-
14	0.5	BU / BN	4498	I	-	High Speed GMLAN Serial Data [+] 7	14	0.35 0.35	BU / BN BU / BN	4498 4498	III III	(LTG/LYX)-EPH EPH+(LTG/LYX)
15	0.5	WH	4499	I	-	High Speed GMLAN Serial Data [-] 7	15	0.35 0.35	WH WH	4499 4499	III III	(LTG/LYX)-EPH EPH+(LTG/LYX)
16	-	-	-	-	-	Not Occupied	16	-	-	-	-	-