P0AEC

Hybrid/EV Battery Temperature Sensor D Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Hybrid system power reduction
Unstable battery performance
Check Engine light comes on
Reduced charge efficiency
Possible problems with regenerative braking

Causes

Poor contact in the sensor connector
Open or short circuit in the sensor circuit
Malfunction of the temperature sensor itself
Wiring Harness Problems
Battery management module malfunction

How to Fix

Check temperature sensor connections
Test the sensor circuit for open circuit and short circuit
Check the resistance of the temperature sensor
Replace temperature sensor if necessary
Update battery management module software

Related codes

P0AEB P0AED P0AEE