P0B33 OBD-II: High Voltage Service Disconnect Circuit

P0B33 Severity

Urgent

Should you fix P0B33 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.

P0B33 Summary Find a Repair Shop P0B33 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P0B33?

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 P0B33 will be stored.

OBD II Fault Code

OBD II P0B33

OBD-II Code High voltage system may not operate is defined as a High Voltage Service Disconnect Circuit

High voltage system may not operate Symptoms

High voltage system may not operate

Common Problems That Trigger the P0B33 Code

Battery Energy Control Module (BECM) failure
Damaged service disconnect plug
Service disconnect plug is not properly connected
Wiring issue

RepairPal ™Car Genius

Ask our experts about P0B33.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts

Other OBD-II Codes

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

OBD II Fault Code

OBD II P0B33

OBD-II Code High voltage system may not operate is defined as a High Voltage Service Disconnect Circuit

High voltage system may not operate Symptoms

High voltage system may not operate

Common Problems That Trigger the P0B33 Code

Battery Energy Control Module (BECM) failure
Damaged service disconnect plug
Service disconnect plug is not properly connected
Wiring issue

P0B33 OBD-II: High Voltage Service Disconnect Circuit

Should you fix P0B33 yourself?

What causes OBD-II fault code P0B33?

Need a P0B33 diagnosis? Trust our experts.

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0B33 Code

Ask our experts about P0B33.

Other OBD-II Codes

OBD Code Resources

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0B33 Code