P0561 OBD-II: System Voltage Unstable
P0561 Severity
Should you fix P0561 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 P0561?
The Charging System maintains an ideal vehicle voltage level when the engine is running. If the battery voltage drops below 10 volts, the engine control module (PCM) will set code P0561.
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What Does P0561 Code Mean?
OBD-II Code P0561 is defined as a System Voltage Unstable
The Charging System maintains an ideal vehicle voltage level when the engine is running. If the battery voltage drops below 10 volts, the engine control module (PCM) will set code P0561.
P0561 Symptoms
- Engine may stall
- Some electrical accessories may not operate - i.e. radio
Common Problems That Trigger the P0561 Code
- Alternator failure
- Battery failure
- Powertrain Control Module (PCM) failure
- Wiring issue
Common Repairs Needed for the P0561 Code
Ask our experts about P0561.
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