P0CB3

Hybrid/EV Battery Temperature Sensor O Circuit Range/Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$28–89 (est.)

Symptoms

Reduced performance of the hybrid system
Increased fuel consumption (for hybrids)
Check Engine Light Illuminates
Hybrid system power reduction
Possible battery charging problems

Causes

Faulty battery temperature sensor
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Wiring harness damage
Battery management module malfunction

How to Fix

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

Related codes

P0CB0 P0CB1 P0CB2