P0A75 - OBD Trouble Code

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Finding an OBD error code can be scary, especially if you’re not familiar with what the code means. You’re having the P0A75 which is an error defined as a Generator Phase W Current. It will be set by the high voltage control module of your vehicle which is the Engine Control Unit. The P0A75 is a generic code, so the more you know the more efficiently you will be able to resolve it.

You vehicle has an inverter whose primary task is to convert high-voltage direct current of the high voltage battery as well as the alternating current for the MG1/MG2. The engine control unit controls the actuation of the power transistors. All the important information like amperage and voltage is transmitted by the inverter to the HV control ECU. The motor inverter current sensors are able to detect the amperage that is flowing through the V and W phase cables present between the inverter and MG1/MG2. When the ECU detects a malfunction in the sensor system during monitoring the inverter current it will go ahead and set P0A75 code and the check engine light will be turned on.

What causes this problem with the Generator Phase W Current

• Fault present in the Inverter With Converter Assembly
• The harness of the Inverter With Converter Assembly is open or shorted
• The circuit of the Inverter With Converter Assembly is having poor electrical connection

1. Inverter with Converter Assembly - Look for repairs and see If the P0A75 code is resolved after fixing the issues, otherwise you will have to replace the inverter with converter assembly.
2. Inverter with Converter Assembly Harness - Repair otherwise replace the harness if the repairs don’t solve the P0A75 code.
3. Engine Control Unit - Try to fix the issues with your ECU through repairs, if that’s not helping, you will have to opt for replacement. Order Online easily at Parts Avatar, simply select the ECU compatible with your vehicle's year of manufacture, make and model and place your order. We ship in just a matter of days!
4. Motor Inverter Current Sensors - Check if you can repair and fix the sensors otherwise go for replacement to get rid of P0A75 error.
5. Powertrain Control Module - Easily replace the PCM from Parts Avatar, order online and avail free shipping on orders above CAD $99, we don’t have any hidden shipping charges in our products, so worry not and order away!
6. Diagnostic Tools - Very important to have the best in hand for diagnosis, At Parts Avatar you can find ones that fit your budget and needs. Order easily from your home and receive your order at your doorstep.
7. Engine Control Module - In case you have to replace the ECM don’t worry you can find reliable brands with warranty. Search for the ECM compatible with your vehicle and place order, our customer care agent is available online 24/7 to help you out!
8. High Voltage Battery - Find the perfect battery for your vehicle. Choose from the wide variety that we have stocked. You can have your order delivered to your home in just a matter of days!

Knowing the symptoms is very important in recognizing the problem causing components.We at Parts Avatar have listed out few common symptoms associated with error code P0A75 Generator Phase W Current.

Common Symptoms

• The check Engine Light on
• High voltage system is not operative

Have a look at some ways with which you can correct the P0A75 code:

• Repair or replace the ECU
• Repair or replace all the faulty electrical connectors, harnesses, wires, and circuitry
• Repair or replace the Inverter With Converter Assembly harness 

There is no need to get strained if your OBD Code is flashing, we are here at your service. Take a look at our superior variety of Inverter With Converter Assembly, Inverter With Converter Assembly Harness, HV Battery, Engine Control Module (ECU), Motor Inverter Current Sensor and many more. Now you can resolve this code quickly from the comfort of your home.

The diagnosis have to be carried out very efficiently, if you think you won’t be able to do it on your own and need professional help, then feel free to approach a professional vehicle diagnostician for it and resolve your issue properly. However, if you want to solve it yourself then follow the steps below:

Start your diagnosis by getting your OBD scanner and connect it to the diagnostic port of your vehicle. Make sure you retrieve all the codes and freeze fame the data also, remember to make note of them all in the order of appearance. If you are able to find any codes set prior to P0A75, then you will have to resolve them first. Previous codes can cause other error codes to set as well, so it’s important that they are taken care of first. After making note of all the codes, clear them and take your vehicle on a test drive to see if the code resets or if the PCM enters readiness more. If the latter happens, then you are having an intermittent condition, this condition may have to worsen before accurate diagnosis can be made. If the code is reset, then you will have to start your diagnosis, the first step is to check all of the electrical system connected with this issue. Thoroughly check all the wires, circuits, connectors, harnesses etc. for damages like burning, breaks, corrosion, short etc. If you are able to find any of these issues, simply repair and correct them or opt for replacement. After you have sorted the circuitry you will have to clear the codes and again go on a test drive. Wait to see if the code returns or the PCM enters readiness mode.

If you find that the code is reset, then you will have to check all the parts pertaining to this problem. For this you will require your specific vehicles Technical Service Bulletins or TSB. Match them to the year of manufacture, make, model and engine. Once you have found it, match the symptoms and the error code P0A75 and see what diagnostic steps are mentioned in the TSB. Apart from having diagnostic steps the TSB will also have details of the parts and components related to this error. All the manufacturer specified configurations will also be present. Use the directions given by the TSB to fix your problem, the connector pin-out charts, and circuit flow charts etc will be extremely helpful and enable you to avoid any misdiagnoses.

Common Mistakes When Diagnosing the P0A75 Code

• The Diagnostic procedure is not followed step-by-step
• Falsely assuming an issue with the ECU when the wires may be damaged and require repairs/replacements