P0CEE

Hybrid/EV Electronics Coolant Temperature Sensor A Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced hybrid system efficiency
The car goes into emergency mode
Increased noise from cooling fans
Error message on display

Causes

Coolant temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Problems with the hybrid system control unit
Low coolant level

How to Fix

Check the level and condition of the coolant
Check the integrity of the sensor circuit and connectors
Test sensor resistance at different temperatures
Replace temperature sensor if necessary
Reset the error code and check the system

Related codes

P0CEF P0CED P0AFA