Drive DTC
Sign in Get Drive DTC

Trouble code libraryIdle, speed and cruise

P0562 System voltage is too low

Generic SAE definitionSystem voltage low

Short trips onlyDrive it only if you have to, gently and not far. Get it fixed right away.

Check this first

Have the battery and alternator tested – Drive DTC's battery test gives you a first look.

What usually fixes it

In the order a good shop checks them. Typical total: $62–$1,125 at $130 an hour.

  1. Battery

    $172–$431

    An old battery can't hold charge and drags the system down.

  2. Alternator or belt

    $408–$1,125

    A failing alternator or slipping belt stops it charging.

  3. Cables and grounds

    $114–$282

    Corroded terminals waste the voltage before it gets anywhere.

Code titles are the generic SAE definitions. Prices are typical US parts and labor for a common car or light truck – a guide for judging a quote, not a quote. Always confirm a repair against the vehicle in front of you.

Drive DTC

See what your vehicle says about P0562

A stored code is a headline, not the story. The vehicle also holds the conditions from the moment the code set, how close each part is to the limit it fails at, what the fuel trims are doing, and whether the fault is still happening. Drive DTC reads all of it with a USB adapter and a Windows PC – read-only by design.

  • Free to start
  • Codes in plain English
  • One-time purchases, no subscription
Get Drive DTC Check a VIN for recalls
Diagnose · Trouble codes
The Trouble codes screen in Drive DTC: stored, pending and permanent counts, then C0040-13 explained in plain English with what to check first, likely fixes in order and typical cost ranges

More in Idle, speed and cruise

All 7 codes in this group
P0500Vehicle speed sensor A P0506Idle air control system RPM lower than expected P0507Idle air control system RPM higher than expected P0520Engine oil pressure sensor/switch A circuit P0563System voltage high P0571Brake switch A circuit