P0ADD OBD-II: Hybrid Battery Negative Contactor Control Circuit/Open

P0ADD Severity

Urgent

Should you fix P0ADD 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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P0ADD Summary Find a Repair Shop P0ADD Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P0ADD?

The High Voltage System is engaged and disengaged through the Hybrid Control Module. If the Hybrid Control Module cannot control the circuit to the high voltage battery, code P0ADD will set.The Hybrid Control Module may disable the high voltage system.

OBD II Fault Code

OBD II P0ADD

OBD-II Code High voltage system may not operate is defined as a Hybrid Battery Negative Contactor Control Circuit/Open

High voltage system may not operate Symptoms

High voltage system may not operate
Vehicle will not charge

Common Problems That Trigger the P0ADD Code

Auxiliary 12V battery failure
High voltage control module failure
Wiring issue

OBD Code Resources

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OBD II Fault Code

OBD II P0ADD

OBD-II Code High voltage system may not operate is defined as a Hybrid Battery Negative Contactor Control Circuit/Open

High voltage system may not operate Symptoms

High voltage system may not operate
Vehicle will not charge

Common Problems That Trigger the P0ADD Code

Auxiliary 12V battery failure
High voltage control module failure
Wiring issue

P0ADD OBD-II: Hybrid Battery Negative Contactor Control Circuit/Open

Should you fix P0ADD yourself?

What causes OBD-II fault code P0ADD?

Need a P0ADD diagnosis? Trust our experts.

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0ADD Code

OBD Code Resources

Ask our experts about P0ADD.

Other OBD-II Codes

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0ADD Code