P3002 – HV Battery Isolation Fault

Description

The ECM detects an isolation fault in the HV battery.

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Symptoms

  • Reduced power
  • Hybrid system shutdown

Causes

  • Damaged insulation
  • Moisture intrusion
  • Battery deterioration

Diagnosis

  • Perform insulation test
  • Inspect battery case

Repair

  • Replace battery modules
  • Repair insulation