AUDI

Bulletin 80C9

2020-09-24 · NHTSA 10180345

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

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

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.