P0AB4
Hybrid/EV Battery Pack Air Temperature Sensor B Circuit High
P0AB4 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack Air Temperature Sensor B Circuit High. Common causes: battery temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $33–167.
Symptoms
- Hybrid system power reduction
- Malfunction warning on the dashboard
- Reducing the range of an electric vehicle
- Incorrect battery temperature readings
- Activation of emergency operation
Causes
- Battery temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Wiring harness damage
- Hybrid ECU malfunction
How to Fix
- Check the continuity of the temperature sensor circuit
- Check resistance and sensor signal
- Inspect connectors and wiring for damage
- If necessary, replace the temperature sensor
- Check and update ECU software
Related codes
Error P0AB4 by Vehicle Brand
FAQ
What does the P0AB4 code mean?
P0AB4 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack Air Temperature Sensor B Circuit High
What causes a P0AB4 error code?
The most common causes of P0AB4 include: Battery temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Wiring harness damage.
How do I fix a P0AB4 diagnostic trouble code?
To fix P0AB4: Check the continuity of the temperature sensor circuit. Check resistance and sensor signal. Inspect connectors and wiring for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0AB4?
Do not drive — repair immediately
How much does it cost to fix P0AB4?
The estimated repair cost for P0AB4 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat