OBD Guide

P0B13

Hybrid/EV Battery Pack Current Sensor A/B Correlation

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$50–133 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Reduced fuel efficiency
  • Battery charging problems

Causes

  • Malfunction of one of the current sensors
  • Damage to the wiring to the sensors
  • Problems with sensor connectors
  • Malfunction of the hybrid system control module
  • Corrosion on sensor contacts

How to Fix

  1. Check error codes to identify a specific sensor
  2. Inspect the wiring and connectors of the current sensors
  3. Check sensor readings using a diagnostic scanner
  4. Replace faulty current sensor if necessary
  5. Clean contacts from corrosion

Related codes

Error P0B13 by Vehicle Brand