P0CBB

Hybrid/EV Battery Temperature Sensor P Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Hybrid system power reduction
Warning messages on the dashboard
Unstable operation of the battery cooling system
Increased fuel consumption (for hybrids)
Reduced range (for electric vehicles)

Causes

Damaged or corroded sensor connectors
Open or short circuit in the sensor circuit
Malfunction of the temperature sensor itself
Problems with the wiring harness near the battery
Poor grounding of the sensor circuit

How to Fix

Check the continuity of the temperature sensor circuit
Inspect the connectors and contacts of the sensor for corrosion
Test the resistance of the temperature sensor
Check the quality of the circuit grounding
Replace battery temperature sensor if necessary

Related codes

P0CBA P0CBC P0AFA