P0C34

Hybrid/EV Battery Temperature Sensor F Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Reduced performance of the hybrid/electric system
Increased fuel consumption in hybrid vehicles
Warning messages on the dashboard
Vehicle power limitation
Incorrect battery temperature readings

Causes

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

How to Fix

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

Related codes

P0C35 P0C36 P0C33