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2016 LEXUS LS 460

4.6L V8•RWD•AUTOMATIC•gas
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Repairs0Labor564Torque3707Fluid7DTC929Battery0Maintenance0Recalls0
P2502high severityPowertrain

Charging System Voltage

on 2016 Lexus LS 460 4.6L V8 · RWD

What this code means

The system charging voltage is outside the expected regulation window.

Symptoms

  • Battery light
  • Check engine light
  • Electrical accessories malfunction
  • Battery drains overnight

Common causes

  • Failed alternator
  • Loose drive belt
  • Battery terminal corrosion
  • ECM-controlled charging fault

Diagnostic steps

  1. Check battery voltage engine off and running
  2. Inspect belt tension and condition
  3. Load test alternator
  4. Check battery terminals

Repair notes

Replace alternator or battery. Clean terminals. Check belt.

Other Powertrain codes on this vehicle

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