OBD Guide

P0CB7

Hybrid/EV Battery Temperature Sensor P Circuit

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
  • Reduced range (for electric vehicles)
  • Incorrect battery temperature readings
  • System transition to emergency mode

Causes

  • Open or short circuit in the sensor circuit
  • Temperature sensor P fault
  • Poor contact in connectors
  • Wiring harness damage
  • Problems with the battery management module

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the resistance of the temperature sensor
  4. Replace the faulty sensor if necessary
  5. Reset the error and check the system operation

Related codes

Error P0CB7 by Vehicle Brand