OBD Guide

P0DE7

Hybrid/EV Battery Pack Cell Voltage High

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–2778 (est.)

Symptoms

  • Reduced vehicle power
  • Maximum speed limit
  • Dashboard warning
  • Reduced electric range
  • The car may go into emergency mode

Causes

  • Charge imbalance between battery cells
  • Charging system malfunction
  • Problems with the Battery Management Module (BMS)
  • Degradation of high-voltage battery cells
  • Damage to high voltage wiring

How to Fix

  1. Diagnosis of high-voltage battery condition
  2. Checking the cell balancing system
  3. Battery Management Module (BMS) Diagnostics
  4. Replacing faulty cells or the entire battery if necessary
  5. Checking and repairing high-voltage wiring

Related codes

Error P0DE7 by Vehicle Brand