# P103C on the 2020 Mack Pinnacle

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 P103C

- [10163935](https://open.wenmarpro.com/bulletins/10163935), 2019-08-19: Diagnostic Trouble Codes \(DTC\) P20EE And P103C, Diagnostic Procedure; REPLACES GUIDED DIAGNOSTICS IN PREMIUM TECH TOOL \( PTT \) \- US17\+OBD16 And Newer Chassis ONLY
- [10160173](https://open.wenmarpro.com/bulletins/10160173), 2019-05-20: Diagnostic Trouble Codes \(DTC\) P20EE And P103C, Diagnostic Procedure; REPLACES GUIDED DIAGNOSTICS IN PREMIUM TECH TOOL \( PTT \) \- US17\+OBD16 And Newer Chassis ONLY