Control Unit, Def Heater: Installation: Installation
WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the Diesel Exhaust Fluid (DEF) Heater Control Unit (HCU) wire harness connector (1).
- Install the DEF HCU (1) and securely tighten the retaining nut (2).
- Lower the vehicle.
- Connect negative battery cable.