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
| Component | Description |
|---|---|
| B213 Reductant Level Sensor | The resistance of the sensor changes with fluid level. |
| K115 Reductant Control Module | The control module controls the heating and dosing of the reductant. |