OBD Guide

P0B95

Hybrid/EV Battery Voltage Sense S Circuit

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

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • The vehicle goes into emergency mode
  • Reducing electric range
  • Errors in battery level readings

Causes

  • Open or short circuit in the sensor circuit
  • Malfunction of the voltage sensor itself
  • Problems with the sensor connector
  • Wiring harness damage
  • Battery management module malfunction

How to Fix

  1. Check the continuity of the voltage sensor circuit
  2. Inspect connectors and contacts for corrosion
  3. Check the resistance and voltage at the sensor
  4. Replace the faulty sensor if necessary
  5. Check and update battery management module software

Related codes

Error P0B95 by Vehicle Brand