P0C44

Hybrid/EV Battery Pack Coolant Temperature Sensor A Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Hybrid/electric system power reduction
Check Engine Light Illuminates
Battery pack overheating
Reduced cooling system efficiency
Activation of emergency operation

Causes

Coolant temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor connection or corroded contacts
Problems with the battery management module
Low coolant level in the system

How to Fix

Check the coolant level in the system
Inspect the sensor circuit for damage
Check the connections and contacts of the sensor
Test the coolant temperature sensor
Replace sensor if necessary

Related codes

P0C45 P0C46 P0C47