P0CAF

Hybrid/EV Battery Temperature Sensor N Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Hybrid/electric system power reduction
Check Engine light comes on
System transition to emergency mode
Incorrect battery temperature readings
Reduced battery efficiency

Causes

Open or short circuit in the sensor circuit
Battery temperature sensor malfunction
Problems with wiring harness or contacts
Battery management module malfunction
Corrosion or oxidation of contacts

How to Fix

Check the continuity of the temperature sensor circuit
Check resistance and sensor signal
Inspect the wiring harness and contacts for damage
Replace temperature sensor if necessary
Reset the error code and check the system

Related codes

P0CAE P0CB0 P0CB1