P0C8B

Hybrid/EV Battery Temperature Sensor I Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–167 (est.)

Symptoms

Hybrid system power reduction
Malfunction warning on the dashboard
Increased charging time (for PHEV/EV)
Activation of emergency operation
Unstable operation of the power plant

Causes

Open or short circuit in the sensor circuit
Battery temperature sensor malfunction
Damage to the wiring harness near the battery
Corrosion of contacts or connectors
Problems with the Battery Management Module (BMS)

How to Fix

Check the continuity of the temperature sensor circuit
Test sensor resistance to specifications
Inspect connectors and wiring harness for damage
Replace faulty temperature sensor
Update BMS software if necessary

Related codes

P0C8A P0C8C P0AFA