P0B35 OBD-II: High Voltage Service Disconnect Circuit Low
P0B35 Severity
Should you fix P0B35 yourself?
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.
What causes OBD-II fault code P0B35?
The Service Disconnect Port allows the high voltage system to be disabled so the vehicle can be safely serviced. The Battery Energy Control Module (BECM) monitors the service disconnect plug and shuts down all electrical systems when the service plug is disconnected. If the BECM can not correctly determine if the service plug is connected, code P0B35 will be stored.
OBD II Fault Code
- OBD II P0B35
OBD-II Code High voltage system may not operate is defined as a High Voltage Service Disconnect Circuit Low
The Service Disconnect Port allows the high voltage system to be disabled so the vehicle can be safely serviced. The Battery Energy Control Module (BECM) monitors the service disconnect plug and shuts down all electrical systems when the service plug is disconnected. If the BECM can not correctly determine if the service plug is connected, code P0B35 will be stored.
High voltage system may not operate Symptoms
- High voltage system may not operate
Common Problems That Trigger the P0B35 Code
- Battery Energy Control Module (BECM) failure
- Damaged service disconnect plug
- Service disconnect plug is not properly connected
- Wiring issue
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