Powertrain
generic / SAE
P0537
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.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 37
Possible causes
- Sensor internally shorted high
- Signal wire shorted to ground medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–300 €
- Estimated time: 0.3–1.5 h
- Component: ac evaporator temp sensor
- Component: sensor wiring
Sources
References
sae:J2012