P0535
A/C Evaporator Temperature Sensor Circuit
The evaporator temperature sensor signal is missing or out of range. Used to prevent icing of the evaporator core.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Evaporator temp sensor defectiveCommon
- Wiring or connector faultPossible
Parts involved
- AC Evaporator Temp Sensor
- Sensor Wiring
P0535 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.