P0562 Code: System Voltage Low

🟠 Moderate severity · drivable

Drivable in the short term, but low voltage can cause stalling and electrical faults, so diagnose the charging system soon.

What P0562 means

The engine computer is seeing system voltage below about 10 volts. The vehicle's electrical system normally runs at roughly 13.5–14.5 volts with the engine running, so a low reading points to a battery or charging problem.

Symptoms

Check engine light is on
Battery or charging warning light
Dim headlights
Hard or slow cranking
Electrical accessories acting up

Common causes

most common: Weak or failing battery
common: Failing alternator
common: Loose or corroded battery terminals
less common: Parasitic battery drain

How to fix it

Fix	DIY?	Typical cost
Clean and tighten the battery terminals	Yes	$0–20
Test the battery and replace it if weak	Yes	$100–250
Test the alternator and replace it if failing	Mechanic	$200–500

Frequently asked questions

Can I drive with a P0562 code?

Short distances, yes, but the car could stall or fail to start. Get the battery and alternator tested soon.

What is the most common cause of P0562?

A weak battery or failing alternator. A free battery-and-charging test at most parts stores will usually tell you which.

How much does it cost to fix a P0562?

A battery is $100–$250; an alternator is $200–$500 installed. Cleaning terminals may cost nothing.

Related codes

P0563 Code: System Voltage High

P0560 Code: System Voltage Malfunction

P0620 Code: Generator Control Circuit Malfunction

P0562 by vehicle brand

Causes and repair costs for P0562 differ between makes. Pick your brand for the specifics.

P0562 on a Toyota

P0562 on a Honda

P0562 on a Ford

P0562 on a Chevy

P0562 on a Nissan

P0562 on a Mercedes-Benz

P0562 on a Volkswagen

P0562 on a Hyundai

P0562 on a Subaru

P0562 on a Mazda

P0562 on a Jeep

P0562 on a Lexus

P0562 on a Volvo

Related guide: The 10 Most Common Check Engine Codes →

Updated 2026-08. This page is informational and not a substitute for professional diagnosis.