P0B35 OBD-II: High Voltage Service Disconnect Circuit Low

P0B35 Severity

Urgent

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.

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P0B35 Summary Find a Repair Shop P0B35 Details Ask RepairPal CarGenius Other OBD-II Codes

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

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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Other OBD-II Codes

P0B34: High Voltage Service Disconnect Circuit Performance P0B33: High Voltage Service Disconnect Circuit P0B32: Hybrid Battery "D" Voltage High P0B31: Hybrid Battery "D" Voltage Low P0B30: Hybrid Battery "D" Voltage Unstable P0B2F: Hybrid Battery "D" Voltage P0B2E: Hybrid Battery "C" Voltage High P0B2D: Hybrid Battery "C" Voltage Low P0B2C: Hybrid Battery "C" Voltage Unstable P0B2B: Hybrid Battery "C" Voltage P0B2A: Hybrid Battery "B" Voltage High P0B29: Hybrid Battery "B" Voltage Low P0B36: High Voltage Service Disconnect Circuit High P0B37: High Voltage Service Disconnect Open P0B38: Motor Electronics Coolant Pump "B" Control Circuit/Open P0B39: Motor Electronics Coolant Pump "B" Control Circuit Low P0B3A: Motor Electronics Coolant Pump "B" Control Circuit High P0B3B: Hybrid Battery Voltage Sense "A" Circuit P0B3C: Hybrid Battery Voltage Sense "A" Circuit Range/Performance P0B3D: Hybrid Battery Voltage Sense "A" Circuit Low P0B3E: Hybrid Battery Voltage Sense "A" Circuit High P0B3F: Hybrid Battery Voltage Sense "A" Circuit Intermittent/Erratic P0B40: Hybrid Battery Voltage Sense "B" Circuit P0B41: Hybrid Battery Voltage Sense "B" Circuit Range/Performance

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