OBD Guide

P2E73

Hybrid/EV Battery Pack B Cell Thickness Sensor Circuit Performance

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • Reducing the range of an electric vehicle
  • Error message on display
  • The car goes into emergency mode

Causes

  • Open or short circuit in the sensor circuit
  • Cell thickness sensor malfunction
  • Problems with the sensor connector
  • Battery management module malfunction
  • Corrosion of contacts in the sensor circuit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check sensor connectors and contacts
  3. Test the cell thickness sensor
  4. Check the operation of the battery management module
  5. Replace faulty sensor or circuit components

Related codes

Error P2E73 by Vehicle Brand