OBD Guide

P0CAD

Hybrid/EV Battery Temperature Sensor N Circuit

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Hybrid/electric system power reduction
  • Increased fuel consumption (for hybrids)
  • Check Engine Light Illuminates
  • Error message on the dashboard
  • Battery charge limit

Causes

  • Open or short circuit in the sensor circuit
  • Battery temperature sensor fault N
  • Problems with connectors or contact corrosion
  • Battery management module malfunction
  • Wiring harness damage

How to Fix

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

Related codes

Error P0CAD by Vehicle Brand