Error Code P0AB2: What It Means & What To Do?

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Are there any symptoms for P0AB2 error code? What is the diagnostic process? How the error code gets stored in the vehicle? Don’t worry. Here’s the solution. Malfunctioning of the high voltage control module is generally known as the hybrid battery pack air temperature sensor “B” circuit. The temperature that is available in the ambient air and in and around the hybrid battery pack is informed to the high voltage control module by the battery pack air temperature sensor. If an irregular signal is found by the high voltage control module from the hybrid battery pack air temperature sensor, then the P0AB2 error will be set. The temperature sensor acts as a component of the battery pack assembly in most vehicles.

You will find the intake air temperature sensor in the HV battery assembly. As the intake air temperature changes, the resistance value will change. The characteristics of the intake air temperature sensor and battery temperature sensor remain the same. The battery ECU will utilize the signal from the intake air temperature sensor to alter the speed of airflow of the battery blower assembly.

What causes this problem with the Hybrid Battery Pack Air Temperature Sensor "B" Circuit Range/Performance?

• The HV battery assembly might be defective.
• There might be an opening in the HV battery assembly or the circuit might be shorted.
• The electrical connection of the HV battery assembly circuit might appear to be weak.
• Defective battery ECU.

1. Engine Control Module - Conditions of misfire shows that your ECM is faulty. Fix it as soon as possible to avoid the P0AB2 error in your vehicle by getting a new ECM from PartsAvatar.
2. Powertrain Control Module - Overheating of the PCM can likely damage your PCM. Change it quickly by getting a new PCM from PartsAvatar.
3. HV Battery Assembly - The damaged HV battery assembly has to be replaced to avoid the P0AB2 error code.
4. Hybrid Battery Pack - If the hybrid battery pack is damaged, then you will notice a drop in the battery bars with no usage. This is an indication that the hybrid battery pack needs a quick replacement.
5. Battery - Swollen battery is an indication that the battery is defective. Fix it as soon as possible

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P0AB2 code by listing out some major symptoms. They are mentioned below as follows:

Common Symptoms

• Possible symptoms of a misfire.
• You might find the engine light or else the warning light of the service engine turned on.
• Performance by the engine is poor.
• You will find the consumption of fuel to be more.

Learn the ways with which you can correct this trouble code:

• The hybrid battery pack/ hybrid battery pack harness has to be changed.
• Replacing the faulty engine control module.
• Repairing the damaged powertrain control module.

However, if you face any issue then we have stocked a wide range of best priced HV battery assembly, HV battery assembly harness, battery ECU and more to help you out in fixing your car.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0AB2 code to be stored:

• Initially, the mechanic will use a scanner to check for the stored error codes.
• He will now connect a scanner to the diagnostic port of the vehicle and recover the stored codes and freeze frame data.
• These data are usually obtained as they can help him with the further diagnostic process.
• Firstly, the mechanic will check the hybrid battery pack as well as the hybrid battery pack harness. If there are any faults or defects, it will be repaired.
• If there are no errors, then the components like battery cables, battery control module, battery current sensor, etc. will be visually checked and examined to see if there are any faults or stored error codes.
• If there are any errors, the mechanic will repair them immediately.
• As a final step, the mechanic will inspect the engine control module/ powertrain control module if it is broken or damaged. If it is broken, the mechanic will carry out the repair process.
• After every component is repaired and when the diagnosis process is properly done, the mechanic has to test drive your vehicle again see if the engine light turns on or if the error code still appears.
• This can help him to locate the area as to where the error has been stored in the vehicle.

Common Mistakes When Diagnosing the P0AB2 Code

• Electrical wires might cause some issues
• Failure of the PCM.
• Less engine oil level.