OBD Guide

P2E40

Battery Charger B Module Forced Shutdown Voltage High

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Problems with charging a high-voltage battery
  • The car goes into emergency mode
  • Disabling the regenerative braking system

Causes

  • Battery charger fault B
  • Problems with high voltage battery
  • Charging control module malfunction
  • Damage to wiring or connectors in the charging system
  • Software error in control module

How to Fix

  1. Check the condition of the high-voltage battery
  2. Diagnose battery charger B
  3. Check the integrity of wiring and connectors
  4. Scan the control module for errors
  5. If necessary, replace faulty components

Related codes

Error P2E40 by Vehicle Brand