P2B25

Hybrid/EV Electronics Coolant Temperature Sensor C Circuit Range/Perfomance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Reduced performance of the hybrid system
Overheating of electronic components
Incorrect coolant temperature readings on the dashboard
Reduced vehicle power

Causes

Faulty coolant temperature sensor C
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Corrosion of sensor contacts or connectors
Problems with the hybrid system ECU

How to Fix

Check the continuity of the temperature sensor circuit
Check sensor connections and connectors
Test the coolant temperature sensor
Replace the faulty sensor if necessary
Check and, if necessary, update the ECU software

Related codes

P2B24 P2B26 P0A7F