P0562moderate severityPowertrain
System Voltage Low
on 2019 Mazda Mazda3 2.5L I4 · FWD
What this code means
The system voltage is below the acceptable threshold.
Symptoms
- Check Engine Light
- Battery light on
- Dim lights
- Electrical accessories malfunctioning
- Hard starting
Common causes
- Weak battery
- Faulty alternator
- Corroded battery terminals
- Loose serpentine belt
- Bad ground connection
Diagnostic steps
- Test battery voltage (should be 12.6V static, 13.5-14.5V running)
- Load test battery
- Test alternator output
- Inspect belt tension
- Clean battery terminals
- Check ground straps
Repair notes
Test battery and alternator. Clean terminals. Most common: failing alternator.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1