# B1029 on the 2021 Ram Promaster City

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 B1029

- [10220889](https://open.wenmarpro.com/bulletins/10220889), 2022-09-26: MIL \(Malfunction Indicator Lamp\) On, DTC P0073 Ambient Air Temperature Sensor Circuit High, B1029\-12 External Temperature Sensor\-Circuit Short To Battery
- [10190636](https://open.wenmarpro.com/bulletins/10190636), 2021-04-26: MIL \(Malfunction Indicator Lamp\) On, DTC P0073 Ambient Air Temperature Sensor Circuit High, B1029\-12 External Temperature Sensor\-Circuit Short To Battery