Code result

P0560

System Voltage Malfunction

Moderate severity

What it means

A general fault in the system voltage seen by the ECU — value implausible, missing, or unstable but without crossing the specific thresholds of P0562 (low) or P0563 (high). Often appears intermittently with a marginal alternator or weak battery.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Charging system marginal (aged battery or alternator)

    high

    One of the most commonly reported causes for this code — check this first.

  • Corroded battery terminals or ground strap

    medium

    A plausible cause — test and verify before replacing parts.

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