P1466
A/C Refrigerant Temperature Sensor/Circuit Malfunction
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Incorrect operation of the air conditioning system
- Automatic air conditioning shutdown
- Insufficient interior cooling
- Air conditioning indicator flashing
- Increased fuel consumption
Causes
- Refrigerant temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Low refrigerant level in the system
- Air conditioning control unit malfunction
How to Fix
- Check the refrigerant level in the system
- Inspect the sensor circuit for damage
- Check sensor connectors and contacts
- Test the coolant temperature sensor
- Replace sensor if necessary