OBD Guide

P0DAC

Hybrid/EV Battery Cell Balancing Circuit A

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Reduced electric vehicle range
  • Extending battery charging time
  • Check Engine Light Illuminates
  • Reduced overall vehicle performance
  • Battery error message on dashboard

Causes

  • Open or short circuit in the balancing circuit
  • Faulty balancing resistors
  • Damage to the wiring harness to the battery module
  • Problems with the Battery Management Module (BMS)
  • Corrosion of contacts in the connectors of the balancing system

How to Fix

  1. Check the integrity of the wiring harness to the battery
  2. Check the resistance of balancing resistors
  3. Inspect connectors for corrosion or damage
  4. Check the functionality of the battery management module (BMS)
  5. If necessary, replace faulty elements of the balancing circuit

Related codes

Error P0DAC by Vehicle Brand