OBD Guide

P0B17

Hybrid/EV Battery Pack Voltage Sense B Circuit High

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

Symptoms

  • Check Engine light comes on
  • The car goes into emergency mode
  • Reduced power or performance
  • Unusual battery level readings
  • Problems charging the hybrid battery

Causes

  • Battery voltage sensor fault
  • Damage or corrosion of wiring in the measurement circuit
  • Problems with sensor connectors
  • Battery management module malfunction
  • Problems with the battery itself

How to Fix

  1. Check the condition of the wiring and connectors in the measurement circuit
  2. Test battery voltage sensors
  3. Check the functionality of the battery management module
  4. Scan the system for other related codes
  5. If necessary, replace faulty components

Related codes

Error P0B17 by Vehicle Brand