P0A3A OBD Error Code: Problem & Solutions

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The trouble code P0A3A can be explained as Generator Temperature Sensor Circuit Intermittent. The temperature of the transaxle fluid is detected by the motor temperature sensor no. 2. The resistance of the thermistor which is installed in the motor temperature sensor no. 2 would vary with the changes in the transaxle fluid temperature. The construction in the motor temperature sensor no. 2 as well as how it is connected to the HV control ECU are similar to those of the motor temperature sensor no. 1. It totally depends upon the signal which is provided by the motor temperature sensor no. 2, the HV control ECU limits the load to prevent the motor from excessive heating. The HV control ECU would inspect the motor temperature sensor no. 2 for a wiring malfunction and the sensor for malfunction.

Do you want to know more about the P0A3A fault code? Don’t worry! Parts Avatar Canada is here at your service. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model.

What causes this problem with the Generator Temperature Sensor Circuit Intermittent?

• Malfunctioning hybrid vehicle motor 
• Hybrid vehicle motor harness might be opened or shorted
• Hybrid vehicle motor circuit bad electrical connection

1. Automatic Transmission Sensor - The P0A3A code can also arise due to some issues in Automatic Transmission Sensor. So, it is advised to replace them as soon as possible.
2. Engine Coolant Temperature Sensor - Do you remember when was the last time you got your car Engine Coolant Temperature Sensor checked up? A damaged Engine Coolant Temperature Sensor can cause a lot of issues like displaying P0A3A code.
3. Electronic Control Unit - Electronic Control Unit is an important car part which should never be neglected. May be there is some fault in it due to which P0A3A code may start flashing.
4. Powertrain Control Module - Is your Powertrain Control Module damaged or broken? Don’t worry as we have solutions for all your problems.
5. Engine Control Module - Defective car Engine Control Module can be a major reason why P0A3A code depicts. So, make sure to replace it online so that you don’t have to face any further issues.
6. Body Control Module Component - Everything is okay with the ECM and still OBD code P0A3A triggering? Then there must be some defects in Body Control Module Component. Replace them as soon as possible.
7. Auto Transmission Control Module - P0A3A code flashing? Get your Auto Transmission Control Module inspected from a mechanic.

There could be countless symptoms which that would accompany with this fault code. Willing to know some common symptoms of OBD Trouble Code P0A3A? Your wish is our demand. Have a look at them below:

Common Symptoms

• Non-operational high voltage system
• The service engine soon light can start lighting up

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• Recondition the non-functioning electronic control unit
• It is necessary to perform proper service of the unsound powertrain control module
• You must fix the defective hybrid vehicle motor circuit
• Carefully adjust the faults in the hybrid vehicle motor 
• The hybrid vehicle motor harness should be restored to working order

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It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0A3A code to be stored:

As an initial step the mechanic will carefully inspect the vehicle with the help of a scanner. After this, the technician will connect a scanner to the diagnostic code so that he can recover all the codes and freeze frame data. Note down this information as it can clearly help for further diagnosis. The mechanic will also inspect the shift solenoid to find if it is disconnected or if any other faults persist. After careful inspection, he will reset the code and test drive your vehicle to check for reappearance of the codes. He will know that an intermittent condition persists, if the code does not return instantly. But if the error code returns quickly, the vehicle is test driven, and then he has to inspect the transmission fluid. If any of the constituent is damaged, the mechanic will replace them quickly. Most often, whenever the mechanic carries out any repair work, he will reset the code and test drive your car, to check if the codes return immediately. This can preferably help the mechanic to know what caused this error code in the vehicle.

Common Mistakes When Diagnosing the P0A3A Code

• Non-performance of the high voltage motor