OBD-II code · Powertrain (generic)

P0ED9 Hybrid/EV Battery Pack F Voltage Sensor Circuit Low

The ECM detects a low fault on the hybrid/ev battery pack f voltage sensor circuit. Reading cannot be used reliably for control.

Is it safe to drive with P0ED9?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelySignal wire shorted to ground
  • PossibleInternal sensor short
  • Less likelyConnector pins corroded - high contact resistance

Symptoms

  • EV/hybrid system warning light on
  • Reduced power output or limp mode
  • Charging may fail or be slowed
  • Reduced electric range

Repair at a glance

Difficulty
Medium
DIY friendly
Best left to a mechanic
Typical labour
1–5 h
Emissions test
Usually unaffected
Parts involved
Hv Battery Pack F Voltage Sensor, Wiring Harness, Bms

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.