# P1B1C on the 2012 Audi Q5

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 P1B1C

- [10120743](https://open.wenmarpro.com/bulletins/10120743), 2017-10-25: The MIL is on. "Coolant System: Fault Turn Off Engine" and the coolant symbol appears in the information panel. DTC P1B1C00 is stored in the ECM.
- [10118392](https://open.wenmarpro.com/bulletins/10118392), 2017-10-04: The technical service bulletin is in regards to the MIL being on due to DTC P1B1C00 \(coolant pump mechanical malfunction\) being stored in the ECM. "Coolant System: Fault Turn Off Engine" and the Coolant symbol appear in the information panel. Condition can be caused by a defective thermostat or the diagnostic software is incorrectly displaying the warning.