P0C88

Hybrid/EV Battery Temperature Sensor I Circuit

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check engine light comes on
Hybrid system power reduction
The vehicle goes into emergency mode
Battery charging problems
Incorrect battery temperature readings

Causes

Battery temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Problems with the battery management module
Corroded contacts or damaged wiring

How to Fix

Check the continuity of the battery temperature sensor circuit
Inspect connectors and contacts for damage
Check the resistance of the temperature sensor
Replace faulty battery temperature sensor
Test the battery management module

Related codes

P0C89 P0C8A P0AFA