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. Its meaning is in the manufacturer's service information.
| S2108000072 | 2022-09-26. Service bulletin. MIL (Malfunction Indicator Lamp) On, DTC P0073 Ambient Air Temperature Sensor Circuit High, B1029-12 External Temperature Sensor-Circuit Short To Battery |
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| S2108000072 | 2021-04-26. Service bulletin. MIL (Malfunction Indicator Lamp) On, DTC P0073 Ambient Air Temperature Sensor Circuit High, B1029-12 External Temperature Sensor-Circuit Short To Battery |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.