P0C43 on the 2020 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.
Nobody has written a description of this code yet.
| Dealer 80C9 | 2020-10-06. Service bulletin. Affected vehicles software configuration for monitoring a functional temperature sensor and coolant switching valve was based on known good and 'bad' temperature differentials. The 'bad' temperature differentials did not take into account certain normal variables. This condition could lead to a MIL with the following erroneous faults stored in the thermal management control module (00C5): P0C4300: Hybrid/EV Battery Pack Coolant Temperature Sensor "A" Circuit Range/Performance P0CE100: Hybrid/EV Battery Pack Coolant Control Valve "A" Stuck On |
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| Bulletin 80C9 | 2020-10-06. Service bulletin. Affected vehicles software configuration for monitoring a functional temperature sensor and coolant switching valve was based on known good and 'bad' temperature differentials. The 'bad' temperature differentials did not take into account certain normal variables. This condition could lead to a MIL with the following erroneous faults stored in the thermal management control module (00C5): P0C4300: Hybrid/EV Battery Pack Coolant Temperature Sensor "A" Circuit Range/Performance P0CE100: Hybrid/EV Battery Pack Coolant Control Valve "A" Stuck On |
| A1920072060218_2 | 2020-10-06. Service bulletin. This bulletin contains a software update for DTC P0C4300 or P0CE100. |
| A1920052060218_1 | 2020-08-06. Service bulletin. This bulletin contains a software update for DTC P0C4300 or P0CE100. |
| A1920032059530_1 | 2020-06-04. Service bulletin. This bulletin contains instructions for creating a PSS for when DTC P0C4300 and/or P0CE100 is stored in the thermal management control module. |
5 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.