P0C8A

Hybrid/EV Battery Temperature Sensor I Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Reduced power or performance
Switching to emergency mode
Incorrect battery temperature readings
Reduced performance of the hybrid system

Causes

Battery temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact or corroded connectors
Battery management module (BMS) malfunction
Wiring harness damage

How to Fix

Check the continuity of the temperature sensor circuit
Inspect connectors and contacts for corrosion or damage
Check the resistance and signal of the temperature sensor
If necessary, replace the temperature sensor
Check and replace the battery management module if necessary

Related codes

P0C8B P0C8C P0C89