P0BC5

Hybrid/EV Battery Temperature Sensor E Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

Symptoms

Hybrid/electric system power reduction
Warning messages on the dashboard
Reducing electric range
Battery overheating in extreme cases

Causes

Battery temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in circuit connectors
Malfunction of the hybrid system control unit

How to Fix

Check the continuity of the temperature sensor circuit
Check connectors and contacts for oxidation or damage
Test battery temperature sensor
Replace sensor if necessary
Check and, if necessary, replace the hybrid system control unit

Related codes

P0BC6 P0BC4 P0A80