OBD Guide

P0ACD

Hybrid/EV Battery Temperature Sensor C Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Illuminates
  • Reduced performance of the hybrid system
  • Incorrect operation of the battery cooling system
  • Reduced vehicle power
  • Errors in other battery-related systems

Causes

  • Battery temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor connection in sensor connectors
  • Contact corrosion
  • Malfunction of the on-board battery management system

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the resistance of the temperature sensor
  4. If necessary, replace the temperature sensor
  5. Test the operation of the battery management system

Related codes

Error P0ACD by Vehicle Brand