P0AFF OBD-II: System Voltage Too Low for Voltage Step Down Conversion
P0AFF Severity
Should you fix P0AFF 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 P0AFF?
Code PAFF is stored when the voltage in the hybrid system is too low. Additional codes may be stored in other modules and should be diagnosed and repaired first.
Need a P0AFF diagnosis? Trust our experts.
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OBD II Fault Code
- OBD II P0AFF
OBD-II Code High voltage system may not operate is defined as a System Voltage Too Low for Voltage Step Down Conversion
Code PAFF is stored when the voltage in the hybrid system is too low. Additional codes may be stored in other modules and should be diagnosed and repaired first.
High voltage system may not operate Symptoms
- High voltage system may not operate
Common Problems That Trigger the P0AFF Code
- High voltage battery assembly failure
- Powertrain Control Module (PCM) failure
- Wiring issue
Common Repairs Needed for the P0AFF Code
Ask our experts about P0AFF.
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