P3004 – HV Battery Voltage Sensor Fault

Description

The ECM detects incorrect HV battery voltage sensor readings.

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Symptoms

  • Reduced power
  • Hybrid warning light

Causes

  • Faulty sensor
  • Wiring issues
  • ECU fault

Diagnosis

  • Test voltage sensor
  • Inspect wiring

Repair

  • Replace sensor
  • Repair wiring