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P0563
2018 Toyota Highlander
Toyota
Severity
Low
Safe to Drive
Yes
Est. Time
30min
Difficulty
Easy
SYMPTOM
Occasional flickering interior lights, no drivability issues
Why This Happens
A loose or corroded battery terminal can cause voltage spikes that register as a high system voltage fault.
VERIFIED FIX:
Battery terminal cleaned and tightened
How It Was Diagnosed
A loose or corroded battery terminal can cause voltage spikes that register as a high system voltage fault.
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