OBD Guide

P0B1E

Hybrid/EV Battery Pack Voltage Sense D Circuit

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Reducing electric range
  • Switching to emergency operation
  • Errors in the battery management system

Causes

  • Open or short circuit in the sensor circuit
  • Battery voltage sensor fault
  • Problems with the battery management module
  • Corrosion of contacts in connectors
  • Wiring harness damage

How to Fix

  1. Diagnose the voltage sensor circuit
  2. Check the condition of connectors and contacts
  3. Test battery voltage sensor
  4. Check Battery Management Module
  5. Replace damaged components

Related codes

Error P0B1E by Vehicle Brand