OBD Guide

P0C72

Hybrid/EV Battery Temperature Sensor E/F Correlation

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • The car goes into emergency mode
  • Unusual behavior of the battery cooling system
  • Reduced performance of the hybrid system

Causes

  • Temperature sensor E or F faulty
  • Damage to the wiring to the temperature sensors
  • Poor contact in sensor connectors
  • Problems with the battery management module
  • Short circuit in the sensor circuit

How to Fix

  1. Diagnosis of fault codes and sensor parameters
  2. Checking the integrity of wiring and sensor connectors
  3. Testing the resistance of temperature sensors
  4. Replacing a faulty temperature sensor
  5. Checking and flashing the battery management module

Related codes

Error P0C72 by Vehicle Brand