P0AAA OBD-II: Hybrid Battery Voltage Isolation Sensor Circuit High

P0AAA Severity

Urgent

Should you fix P0AAA 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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P0AAA Summary Find a Repair Shop P0AAA Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P0AAA?

The high voltage system uses a battery voltage isolation sensor inside the battery control module to monitor separation of the high and low voltage systems. If sensor fails, P0AAA will set. The high voltage system may become disabled.

OBD II Fault Code

OBD II P0AAA

OBD-II Code High voltage system may not operate is defined as a Hybrid Battery Voltage Isolation Sensor Circuit High

High voltage system may not operate Symptoms

High voltage system may not operate
Vehicle will not charge

Common Problems That Trigger the P0AAA Code

Battery Smart Unit failure

OBD Code Resources

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OBD II Fault Code

OBD II P0AAA

OBD-II Code High voltage system may not operate is defined as a Hybrid Battery Voltage Isolation Sensor Circuit High

High voltage system may not operate Symptoms

High voltage system may not operate
Vehicle will not charge

Common Problems That Trigger the P0AAA Code

Battery Smart Unit failure

P0AAA OBD-II: Hybrid Battery Voltage Isolation Sensor Circuit High

Should you fix P0AAA yourself?

What causes OBD-II fault code P0AAA?

Need a P0AAA diagnosis? Trust our experts.

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0AAA Code

OBD Code Resources

Ask our experts about P0AAA.

Other OBD-II Codes

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0AAA Code