P0535A/C Evaporator Temperature Sensor Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- The evaporator temperature sensor, an NTC thermistor behind the evaporator, prevents icing: near 0–3 °C the compressor is switched off or reduced. Usually the climate module reads it and reports body codes; P0535–P0539 only arise where the engine module controls the compressor and reads the sensor. P0535 is the general circuit fault; the compressor is usually locked out or run with a substitute value. No manufacturer document available to us uses this code; the description follows CARB's input component rules.
- What you may notice
- Air conditioning not or weakly cooling
- Evaporator icing, airflow decreasing
- Compressor cycling unusually
- Likely causes
- LikelySensor faulty
- LikelyConnector corroded by condensate
- PossibleWire open or shorted
- RareEngine module
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.