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P0B39 Severity
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
The Hybrid System has its own coolant pump, the Motor Electronics Coolant Pump. This pump is monitored and controlled by the engine computer (PCM). If the pump fails to operate as requested, code P0B39 will be stored.
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OBD-II Code Engine may overheat is defined as a Motor Electronics Coolant Pump "B" Control Circuit Low
The Hybrid System has its own coolant pump, the Motor Electronics Coolant Pump. This pump is monitored and controlled by the engine computer (PCM). If the pump fails to operate as requested, code P0B39 will be stored.