Guide To P0A70 OBD Error Code Solutions

<<See All OBD Codes

In your vehicle the high-voltage direct current passed on by the High Voltage battery and alternating current for the MG1/MG2 get converted by the inverter. This inverter contains a 3 phase bridge circuit, this circuit has 6 power transistors each for the MG1 and MG2. The purpose of them is to convert the direct current and the three-phase alternating current. The ECU which is the HV control, actuates the power of the transistors. The information necessary for effecting control like amperage and voltage is transmitted by the inverter. It sends this information to the HV control ECU. The amperage that flows through the V and W phase cabled is detected by the motor inverter current sensors. These cables run between the inverter and Mg1/MG2, only the important information is transmitted for effecting control this includes amperage and voltage to the HV control ECU. Any malfunction picked up by the ECU when monitoring the inverter current sensors will force it to set P0A70 error code.

The high voltage control module of the vehicle monitors the flow of current through the high voltage cables via sensors. If a failure of the current monitoring sensors is noted by the high voltage control module or the ECU this OBD code P0A70 is set.

What causes this problem with Generator Phase U Current Low?

• Fault of the Inverter with Converter Assembly
• 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 - Check for repairs and fix them to see if the P0A70 code is resolved. If that doesn't happen then you will have to replace it.
2. Inverter with Converter Assembly Harness - Replace the harness if the repairs don’t solve the P0A70 code.
3. Engine Control Unit - If you have observed a fault in the ECU repair it , if that’s not helping, you will have to opt for replacement. Parts Avatar has a wide range of brands providing quality auto parts. You can find the best one suited for your vehicles compatibility and order online!
4. Inverter Current Sensors - Try to fix the sensors or go for replacement so that you can get rid of P0A70 code.
5. Powertrain Control Module - You can easily replace the PCM from Parts Avatar simply order online and avail free shipping on orders above CAD $99.
6. Diagnostic Tools - These are very important during diagnosis, make sure you have the best quality. At Parts Avatar you find ones that fit your budget and needs. Order Online today and receive your order at your doorstep.
7. Engine Control Module - In some cases you will have to replace the ECM. Don’t worry we stock reliable brands and give warranty too. You can receive your order in a matter of days right to your doorstep.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0A70 here:

Common Symptoms

• High voltage system may stop working
• Check Engine Light is on after code was set

Want to correct the Trouble Code P0A70? Read these points mentioned below:

• Repair or replace the damaged wiring
• Repair or replace the Engine Control Unit
• Repair or replace the Inverter Current Sensors

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced Inverter with Converter Assembly, Inverter with Converter Assembly Harness, Engine Control Unit, Inverter Current Sensors and a lot more to help you out in fixing your car.

In order to be that DIY guy and to be able to diagnose your vehicle’s problem yourself you will need to keep in mind the following precautions

Connect your OBD scanner to the vehicle diagnostic port and retrieve all the codes. Freeze frame the data and check if any other codes are also set. Make sure you note these down in their order of occurrence also. Doing this will help to be a reference point in the future. 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.

However, if you find that the code is reset, then you will have to start your diagnosis with checking all of the electrical system connected with the this issue. You will have to check all the wires, connectors, harnesses etc. for damages like burning, breaks, corrosion etc. If you are able to find any of these issues, simply correct them via repairs or opr for replacement. After you have sorted the circuitry you will have to clear the codes and again go on a test drive to see if the code returns or the PCM enters readiness mode.

If the code is reset, then you will have to check all the parts pertaining to this problem. You will have to find a reliable source of vehicle information and first find out your vehicles Technical Service Bulletins, these will have all the details of the parts and components. Make sure to match the OBD code, symptoms and your vehicles configuration like mae, model, engine size etc accurately. You can now use the directions given by the TSB to fix your problem, the connector pinout charts, and circuit flow charts etc will be extremely helpful and enable you to avoid any misdiagnosis.

In case you’re unable to still resolve the problem, approach a professional vehicle diagnostician for it and resolve your issue properly.

Common Mistakes When Diagnosing the P0A70 Code

• Not being observant while doing the diagnosis. It’s important to be patient and take time in inspecting the parts.
• Jumping to conclusions and changing the ECU or PCM when there may be other minor issues causing the error