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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P1052, P20BD-P20BF, P20C0, P248C, or P248D >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to: Exhaust Aftertreatment System Description

Circuit Description
Control - Terminal 2 The output circuit is switched to 12 V to activate the component.
Control - Terminal 1 The output circuit is switched to ground to enable the component(s).
Component Description
E52 Reductant Line Heater The pressure line is a hose with integrated heating wires.
K115 Reductant Control Module The control module controls the heating and dosing of the reductant.
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