P0EBE: A/C Refrigerant Temperature Sensor A Circuit Low
Standardized SAE J2012 code · P0Exx codes
What does P0EBE mean?
P0EBE is logged when the voltage from refrigerant temperature sensor A falls close to zero. For an NTC element a low voltage stands for high temperature, so the controller sees refrigerant that seems far too hot. Real heat at that level is unlikely; a signal wire chafed through to ground or a thermistor shorted internally is the usual finding. No manufacturer publishes P0EBE. GM's 2012 Volt reacts to its evaporator refrigerant sensor below 2 percent of the reference (about 0.1 V) in 40 of 50 samples as P0537, Type B, which shows how such a check is built. Expect the compressor to be held off as protection. High-voltage fault of this sensor: P0EBD.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- A/C compressor switched off as a precaution
- Live data shows an unrealistically hot refrigerant
Common causes
- High Signal wire chafed and shorted to ground
- Medium Thermistor shorted internally
- Low Moisture bridging the connector pins
Likelihood is a general estimate across vehicles; your make and model may differ.
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