A38 Reductant Pump and Sensor Assembly (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:DEF Tank Wiring Harness
OEM Connector: 33210848
Service Connector: Service by Harness - See Part Catalog
Description: 16-Way F 1.2 MLK Series, Sealed (BK)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	Not required	No Tool Required	No Tool Required

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	-	BK	3244	Diesel Exhaust Fluid Tank Temperature Sensor Signal	I	-
2	-	BN	3245	Diesel Exhaust Fluid Tank Temperature Sensor Low Reference	I	-
3	-	BU	3107	Diesel Exhaust Fluid Pressure Sensor Low Reference	I	-
4	-	BU	3108	Diesel Exhaust Fluid Pressure Sensor Signal	I	-
5	-	BN	3106	Diesel Exhaust Fluid Pressure Sensor 5 Volt Reference	I	-
6	-	BU	4138	Fuel Pump Supply Voltage Phase 3	I	LATE BUILD
7	-	WH	3103	Diesel Exhaust Fluid Smart Pump Control	I	-
8	-	BN	3875	Diesel Exhaust Fluid Smart Pump Supply Voltage Phase 2	I	-
9	-	YE	3677	Diesel Exhaust Fluid Reservoir Heater Control	I	-
10	-	BN	3676	Diesel Exhaust Fluid Heating Tank 2 Heater Control	I	EARLY BUILD
11	-	BU	4138	Fuel Pump Supply Voltage Phase 3	I	EARLY BUILD
12	-	BN	3676	Diesel Exhaust Fluid Heating Tank 2 Heater Control	I	LATE BUILD
13	-	-	-	Not Occupied	-	-
14	-	BU	2937	Diesel Exhaust Fluid Pump Motor Stator Low Reference	I	-
15	- - -	BN BN YE	2936 2936 3876	Diesel Exhaust Fluid Heating Tank 2 Heater Control Low Diesel Exhaust Fluid Heating Tank 2 Heater Control Low Diesel Exhaust Fluid Smart Pump Supply Voltage Phase 3	I I I	EARLT BUILD EARLY BUILD LATE BUILD
16	- - -	YE YE BN	3876 3876 2936	Diesel Exhaust Fluid Smart Pump Supply Voltage Phase 3 Diesel Exhaust Fluid Smart Pump Supply Voltage Phase 3 Diesel Exhaust Fluid Heating Tank 2 Heater Control Low	I I I	EARLT BUILD EARLY BUILD LATE BUILD