P0562
System Voltage Low
Medium — service soonPowertrain (engine & transmission)
System
Powertrain (engine & transmission)
Type
Generic (standardized)
Subsystem
Vehicle speed, idle control & auxiliary inputs
What it means
The ECU sees a battery/charging voltage that is lower than normal.
Symptoms
Dim lights, battery warning, hard starting, electrical glitches.
Common causes
Failing alternator, weak battery, loose/corroded terminals, or bad ground.
Recommended action
Test the battery and alternator output; clean and tighten battery connections.
Related codes
P0300Random/Multiple Cylinder Misfire DetectedP0301Cylinder 1 Misfire DetectedP0302Cylinder 2 Misfire DetectedP0303Cylinder 3 Misfire DetectedP0304Cylinder 4 Misfire DetectedP0420Catalyst System Efficiency Below Threshold (Bank 1)P0430Catalyst System Efficiency Below Threshold (Bank 2)P0171System Too Lean (Bank 1)P0174System Too Lean (Bank 2)P0172System Too Rich (Bank 1)P0175System Too Rich (Bank 2)P0101Mass Air Flow (MAF) Circuit Range/Performance
FAQ — P0562
What does code P0562 mean?
System Voltage Low. The ECU sees a battery/charging voltage that is lower than normal.
What are the symptoms of P0562?
Dim lights, battery warning, hard starting, electrical glitches.
What causes P0562?
Failing alternator, weak battery, loose/corroded terminals, or bad ground.
What should I do about P0562?
Test the battery and alternator output; clean and tighten battery connections.
General reference based on the SAE J2012 standard. Exact causes for your vehicle may differ — when in doubt, consult a workshop.
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