Powertrain
generic / SAE
P0538
A/C Evaporator Temperature Sensor Circuit High
The evaporator temperature sensor signal voltage is above the upper diagnostic threshold. Typically open circuit or short to power.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 38
Possible causes
- Sensor open internally high
- Wiring open or disconnected medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: easy
- DIY: possible
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References
sae:J2012