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P1562 – Battery Voltage Too High

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Symptoms

  • Bright lights
  • Electrical noise
  • Check engine light

Causes

  • Faulty alternator regulator
  • Wiring short
  • Bad ground

Diagnosis

  • Measure charging voltage
  • Inspect wiring
  • Check regulator

Repair

  • Replace alternator
  • Repair wiring
  • Improve grounding
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