A/C Evaporator Temperature Sensor Circuit Low
The evaporator temperature sensor signal voltage is below the lower diagnostic threshold. Indicates a short to ground or sensor fault.
Affected components
- Ac evaporator temp sensor
- Sensor wiring
Common causes
- High likelihood: Sensor internally shorted
- Medium likelihood: Signal wire shorted to ground
- 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.