When Monitored

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This diagnostic runs continuously when the following conditions are met:

Thermal system relay enabled.
No HV Battery Pack Inlet Temperature Sensor DTCs set.
Thermal System is in active heating mode.
HV Battery cell temperature is below a calibrated value.
The Electric A/C Compressor (EAC) Speed is greater than a calibrated value.
The Electric Coolant Heater is requested ON.
The Electric Coolant Heater power limit is above a calibrated value.
The target temperature of the electric coolant heater is above a calibrated threshold.