Monitor Description
If the battery ECU assembly detects that the temperature of the HV battery is increasing even though it is not applying current to the HV battery heater relay, it will detect a malfunction, illuminate the MIL and store a DTC.
If the battery ECU assembly detects that the temperature of the HV battery is increasing even though it is not applying current to the HV battery heater relay, it will detect a malfunction, illuminate the MIL and store a DTC.