P0C9A

Hybrid/EV Battery Temperature Sensor L Circuit High

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Switching to emergency mode
Unstable operation of the hybrid system
Error message on display

Causes

Short circuit in the temperature sensor circuit
Battery temperature sensor malfunction
Wiring harness damage
Problems with sensor connectors
Hybrid system controller malfunction

How to Fix

Check the continuity of the temperature sensor circuit
Check the resistance of the temperature sensor
Inspect connectors and wiring harness for damage
Replace faulty temperature sensor
Check the operation of the hybrid system after repair

Related codes

P0C9B P0C9C P0C9D