A/C Evaporator Temperature Sensor Circuit High
The evaporator temperature sensor signal voltage is above the upper diagnostic threshold. Typically open circuit or short to power.
Affected components
- Ac evaporator temp sensor
- Sensor wiring
Common causes
- High likelihood: Sensor open internally
- Medium likelihood: Wiring open or disconnected
- Low likelihood: Connector pins corroded - high contact resistance
Related codes
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.