P0AB2

Hybrid/EV Battery Pack Air Temperature Sensor B Circuit Range/Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reduced vehicle power
Switching to emergency mode
Incorrect battery temperature readings
Reduced range (for electric vehicles)

Causes

Battery temperature sensor fault B
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Problems with the hybrid system control unit

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
If necessary, replace the temperature sensor
Repair only from an authorized dealer

Related codes

P0AB0 P0AB1 P0AB3