P0563

System Voltage High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

check engine light on
interruptions in the operation of electrical equipment
dim or too bright headlights
battery discharge or overcharging

Causes

generator malfunction
problems with voltage regulator
short circuit in the electrical circuit
wiring harness damage
ECU malfunction

How to Fix

check the voltage at the battery terminals with the engine running
check generator and voltage regulator
inspect the wiring harness for damage
check grounding and connections in the electrical system
if necessary, replace the generator or voltage regulator

Related codes

P0562 P0620 P0622