P3003 – HV Battery Current Sensor Fault

Description

The ECM detects incorrect HV battery current sensor readings.

Want to confirm the real cause of this fault code?

A high-quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze-frame information — exactly what you need to verify the root cause of this code with confidence.

View Recommended Scanners

Symptoms

  • Reduced power
  • Poor fuel economy

Causes

  • Faulty sensor
  • Wiring issues
  • ECU fault

Diagnosis

  • Test current sensor
  • Inspect wiring

Repair

  • Replace sensor
  • Repair wiring

Related Problems