Code result
P0537
A/C Evaporator Temperature Sensor Circuit Low
Moderate severity
What it means
The evaporator temperature sensor signal voltage is below the lower diagnostic threshold. Indicates a short to ground or sensor fault.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Sensor internally shorted
highOne of the most commonly reported causes for this code — check this first.
Signal wire shorted to ground
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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