P0C15 - OBD Trouble Code

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The trouble code P0C15 can be defined as Drive Motor “B” Inverter Phase V Over Temperature. The drive motor “B” inverter phase V over temperature is being monitored by the engine control module. This trouble code would be set by the ECM when the drive motor “B” inverter phase V over temperature would not be as per the specifications set by the manufacturer.

We learn more by looking for the answer to a question. That’s the reason why we are here to provide you the answers for all your questions. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.

What causes this problem with the Drive Motor “B” Inverter Phase V Over Temperature?

• Coolant system might start leak
• There can be inoperative drive motor generator power inverter control module
• Engine cooling fan might be flawed
• Imperfect water pump
• There can be distorted coolant pump

1. Generator Assembly - Thinking of starting your car with faulty generator assembly? The car won’t be able to start because the bad generator assembly won’t charge the car battery when the automobile was running.
2. HVAC Blower Motor Control Module - Are you wondering why your car’s HVAC Blower Motor Control Module is not working properly? Then it can be due to a blown power supply fuse, a faulty motor ground connection, quirky motor speed control module or sometimes sure to a failed motor.
3. Motor Assembly - If you are hearing a loud clunking noise, while shifting your automobile, then it is a sign of motor assembly failure. Get your motor assembly inspected from a mechanic.
4. Engine Control Module - The solenoid might cause a short in the engine control module because of corrosion in the solenoid or the wire running from the solenoid to the ECM harness. It would be nice if you get it replaced on time.
5. Powertrain Control Module - A trouble with the PCM would mean that it is unable to determine the right fuel mixture and would send the car engine either more or less fuel than it requires. Now when the engine gets more, the carbon emission would increase and fuel economy would drop. In case of the opposite, the engine will choke, stutter, and might start stalling sometimes.

Willing to know some common symptoms of OBD Trouble Code P0C15? Your wish is our demand. Have a look at them below:

Common Symptoms

• An illuminated engine light (or service engine soon warning light) may be observed
• Non-operational high voltage system

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P0C15:

• Recondition the non-functioning coolant pump
• It is essential to restore the flawed hybrid battery
• Repair or replace the quirky powertrain control module
• Rehabilitate the defaults in the water pump
• Adjust the flawed motor control module

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

A technician begins by hooking the vehicle to an OBD-II scanner to verify that the code is present, and check for other codes. The freeze frame data along with current data is recorded, and the codes are then cleared to see if they reoccur.

Visual inspection of the wiring and connectors to check for loose connections, corrosion, or shorts is done.

A specialized tool may be used to test the drive motor “B” inverter. Other tests of the motor assembly and its components may help pinpoint the problem, as well as inspection of the wiring and connectors.

Disconnect and check the resistance and signal voltage from the battery current sensor. If all the components check out, inspect for the fault in the PCM as it can sometime store wrong OBD code and thus might need replacement or reprogramming.

Common Mistakes When Diagnosing The P0C15 Code

• Defaults in the drive motor generator power inverter control module