P3003 – HV Battery Current Sensor Fault

Description

The ECM detects incorrect HV battery current sensor readings.

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Symptoms

  • Reduced power
  • Poor fuel economy

Causes

  • Faulty sensor
  • Wiring issues
  • ECU fault

Diagnosis

  • Test current sensor
  • Inspect wiring

Repair

  • Replace sensor
  • Repair wiring

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