HVAC Air Temperature External Sensor Circuit
A fault has been detected in the external (ambient) temperature sensor circuit used by the HVAC and instrument cluster.
Affected components
- Ambient temperature sensor
- Hvac control module
Common causes
- High likelihood: Ambient sensor failure (often behind front grille)
- Medium likelihood: Water in connector
Possible symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.