P0A8B OBD Error Code: Problem & Solutions

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What do you know about the error code P0A8B? Do you know its symptoms and causes? Do you know how this error code gets stored in the vehicle? If your answer is ‘no’ to any of these questions then keep reading to know about this error code. The 14-volt power module is carefully observed by the engine control module, but if it fails to operate as per the specification, then the P0A8B error code will be stored in the vehicle.

Malfunctioning of the low voltage system is referred to as the 14-volt power module system voltage. The careful observation of the current to the low voltage system is done by the 14-volt power module which is also known as the accessory DC power module. The error code, P0A8B will be stored in the system by the 14-volt power module, if the voltage is set either too high or low, and finally the low voltage system is deactivated.

What causes this problem with the 14 Volt Power Module System Voltage?

• 14-volt power module might be damaged.
• 14-volt power module harness might have an opening or shorted circuit.
• 14-volt power module circuit might have a weak electrical connection.
• 14-volt power module software needs an update.

1. 14-Volt Power Module - The 14-volt power module has to be carefully checked for any possible damages or defects. If they are defective, replace them immediately.
2. 14-Volt Power Module Harness - Check the harness of the of the 14-volt power module if it is broken or defective. If the harness is not proper, replace it immediately.
3. 14-Volt Power Module Software - P0A8B error code can get stored in the vehicle if the software is not updated at the right time. Update the software as and when needed.
4. Engine Control Module (ECM) - A faulty or defective engine control module will make the P0A8B error code to get stored in your vehicle. Get rid of this error code by replacing the faulty ECM.
5. Car Battery - Carefully check the car battery if it is bulged or broken. If you find them damaged, get the replacement for your battery from Parts Avatar at best prices online.

Interested in knowing the symptoms to OBD code P0A8B? If yes, then you have arrived at the right place. We at Parts Avatar have listed out few common symptoms associated with 14-Volt Power Module System Voltage.

Common Symptoms

• If the system has a low voltage, it will not function correctly.
• Engine light is always on.

Have a look at some ways with which you can correct the P0A8B code:

• Replacing the 14-volt power module.
• Regularly updating the software of 14-volt power module.
• Changing the faulty engine control module (ECM).
• Replacement of batteries.

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of 14-volt power module, 14-volt power module harness, 14-volt power module software, engine control module (ECM), battery and many more. Now all your problems would vanish within no time.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• P0A8B is a generic type of trouble code which is easy to diagnose.
• To initially begin with the mechanic will use a scanner to check the error codes in the vehicle. For an advanced diagnostic process, the mechanic will use an advanced tool called Auto hex as it can exactly pinpoint the area as to where the error occurred.
• The mechanic will usually begin with a visual inspection of the wires for any possible damages or faults. Any possible damage will be immediately addressed.
• After this, the 14-volt power module will be carefully checked for any damages or defectives. If there is an error, then it will be rectified.
• At times, the error code gets stored in the vehicle if the software of the 14-volt power module is not updated. The mechanic will look into this, and update the software.
• As a very rare case, the engine control module can be faulty or defective which has to be immediately replaced so that the error code is avoided.
• After this, the mechanic will see if the error code still appears.
• If the error code still appears, the battery will be carefully checked if it’s swollen. The mechanic will also check if there is any cranking noise from the engine. Such a strange noise and a swollen battery will be immediately rectified.
• Whenever a diagnosis is performed, the code will be reset. The vehicle will be test driven to see if the error code is still visible. This can help the mechanic to locate the exact area as to where the error arose.

Common Mistakes When Diagnosing the P0A8B Code

• Faulty engine control module (ECM).
• An issue with batteries.
• Ignoring to update the software.