OBD Guide

P0ED3

Hybrid/EV Battery F Voltage High

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–889 (est.)

Symptoms

  • Hybrid system power reduction
  • Hybrid warning light comes on
  • The car goes into emergency mode
  • Low battery power
  • Errors in the operation of the regenerative braking system

Causes

  • Malfunction of battery cells in section F
  • Problems with balancing battery cells
  • Battery management system (BMS) malfunction
  • Damage to high voltage wiring
  • Problems with the charger or generator

How to Fix

  1. Diagnosis of high-voltage battery condition
  2. Checking the cell balancing system
  3. Testing Battery Management System (BMS) Operation
  4. Checking the integrity of high-voltage wiring
  5. Replacement of faulty battery cells if necessary

Related codes

Error P0ED3 by Vehicle Brand