OBD Guide

P0CAE

Hybrid/EV Battery Temperature Sensor N Circuit Range/Performance

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

Symptoms

  • Reduced performance of the hybrid/electric system
  • System transition to emergency mode
  • Increased fuel consumption (for hybrids)
  • Check Engine Light Illuminates
  • Power reduction

Causes

  • Battery temperature sensor fault N
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring Harness Problems
  • Battery management module malfunction

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. Replace the temperature sensor if it is faulty
  5. Check and replace wiring harness if necessary

Related codes

Error P0CAE by Vehicle Brand