OBD Guide

P0CAB

Hybrid/EV Battery Temperature Sensor M Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Reduced performance of the hybrid/electric system
  • Warning messages on the dashboard
  • Power limitation
  • Incorrect battery temperature readings

Causes

  • Battery temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in circuit connectors
  • Battery controller problems

How to Fix

  1. Check the continuity of the battery temperature sensor circuit
  2. Check connectors and contacts for corrosion or damage
  3. Replace battery temperature sensor if necessary
  4. Check and, if necessary, replace the battery controller

Related codes

Error P0CAB by Vehicle Brand