B1517

Battery Voltage Low Or High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Difficulty starting the engine
Dashboard flashing or turning off
Unstable engine operation at idle
Reduced efficiency of electrical equipment

Causes

Faulty generator
Worn or discharged battery
Problems with wiring harness or contacts
Voltage regulator malfunction
Short circuit in the circuit

How to Fix

Check battery voltage with engine off and running
Inspect the battery terminals and contacts for corrosion or damage.
Check the condition of the generator and drive belt
Test the voltage regulator
Check the integrity of the wiring harness and grounding

Related codes

P0562 P0563 P0620