What are the common causes of P0562?

Failing alternator or voltage regulator. Loose, corroded, or worn drive belt. Battery with a failing cell or excessive age. High resistance in charging circuits. Excessive electrical load.

Check battery voltage with the engine off and running. Test alternator output with a multimeter and load test. Inspect the serpentine belt for tension and condition. Check battery cables and grounds for corrosion. Load test the battery to rule out a failing cell.

P0562

Charging System Voltage Low

System: Speed and idle control (P code)
Lamp: Check Engine Light
Category: Powertrain - Computer and Auxiliary Controls

What it means

P0562 means Charging System Voltage Low.

Check these first

Failing alternator or voltage regulator
Loose, corroded, or worn drive belt
Battery with a failing cell or excessive age
High resistance in charging circuits
Excessive electrical load

What to do next

Check battery voltage with the engine off and running
Test alternator output with a multimeter and load test
Inspect the serpentine belt for tension and condition
Check battery cables and grounds for corrosion
Load test the battery to rule out a failing cell

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.