# P1031 on the 2018 Mack LR

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P1031

- [10142715](https://open.wenmarpro.com/bulletins/10142715), 2018-07-16: Mack Chassis \- Vehicles Equipped With A Vertical Selective Catalytic Reduction \(SCR\) System \- Diagnostic Trouble Codes \( DTC \) P1031 With Possible P24DA Lighting The Malfunction Indicator Lamp \( MIL \) \- US17\+OBD16 \(GHG17, Common Rail Fuel System\) Emissions, Commonly Model Year 2018
- [10141411](https://open.wenmarpro.com/bulletins/10141411), 2018-06-18: Mack Chassis \- Vehicles Equipped With A Vertical Selective Catalytic Reduction \(SCR\) System \- Diagnostic Trouble Codes \( DTC \) P1031 With Possible P24DA Lighting The Malfunction Indicator Lamp \( MIL \) \- US17\+OBD16 \(GHG17, Common Rail Fuel System\) Emissions, Commonly Model Year 2018