OBD Guide

P0CB2

Hybrid/EV Battery Temperature Sensor O Circuit

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Reduced performance of the hybrid/electric system
  • Warning messages on the dashboard
  • Reducing electric range
  • Battery overheating or hypothermia

Causes

  • Open or short circuit in the temperature sensor circuit
  • Battery temperature sensor malfunction
  • Problems with the wiring harness or connectors
  • Battery management module malfunction

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Check connectors and wiring harness for damage
  3. Test battery temperature sensor
  4. Check Battery Management Module
  5. Replace faulty components

Related codes

Error P0CB2 by Vehicle Brand