Guide To P0C18 OBD Error Code Solutions

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The trouble code P0C18 can be explicated as Drive Motor "B" Position Sensor Not Learned. This code is a generic trouble code, meaning it applies to all vehicles equipped with the OBD-II system, especially those made from 1996 up to present. It’s also more common among Audi, Citroen, Chevrolet, Ford, Hyundai, Nissan, Peugeot, and Volkswagen vehicles. Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model, powertrain configuration type, to another.

Do you want to gain some more knowledge about the P0C18 trouble code? Every motor control module works in its respective drive motor generator depending upon hybrid powertrain control module commands. The speed, direction and output torque of its respective drive motor generator is controlled by the motor control modules through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors.

What causes this problem with the Drive Motor "B" Position Sensor Not Learned?

• Imperfect drive motor
• There can be unlocked drive motor harness
• Drive motor circuit electrical connection might be inadequate

1. Engine Control Module - ECM failures and faults can be very difficult to find and resolve as these are very rare and might require a complete reprogramming of the system to avoid wrong codes from getting stored in the system, leading to misdiagnosis. Replace it now!
2. Powertrain Control Module - Faulty PCM can disrupt the normal functioning of the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error and thus can lead to misdiagnosis.
3. Motor Assembly - Willing to know some symptoms of failing motor assembly? There can be some noises which can start coming from the engine bay. So, it is very important to get it inspected and replaced on time.
4. Generator Assembly - It is advisable to check the components in relation to the generator assembly which can affect the starting and functioning of the drive motor. This can even cause stalling and irregular gear shift and can also damage various components. Buy new components and replace it now!
5. Diagnostic Tools - Take help of a professional mechanic to diagnose OBD code error. Use high grade diagnostic tools to resolve this issue. Buy new tools and equipment form us!

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 P0C18 here:

Common Symptoms

• Check engine light might come into signal

The repairs which you will have to do to correct this fault code are simply straightforward; you can surely pinpoint the necessary repairs on the basis of your diagnosis. Have a look at some common fixes:

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

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Here are some steps which you should follow in order to diagnose this fault code:

• This is a general type of error code which is diagnosed with the help of a scanner.
• The mechanic will insert a scanner to diagnostic port of the vehicle and recover the codes and freeze frame data.
• If he happens to find any additional error codes, he has to address them as well.
• Once it is done, he has to reset the vehicle, and then test drive to see if the error code appears.
• If the error code does not return, then there can be an erratic condition.
• But, if the error code returns, then the mechanic has to check the transmission fluid.
• If the transmission fluid is dirty or if it is below the expected level, it has to be refilled or the dirty fluid has to be replaced.
• Also, the mechanic can check for any sign of defects in the drive motor "B" position sensor, and quickly fix the issue.
• Then the mechanic has to check the wires, connectors and other electrical components and quickly replace them if he finds them to be damaged or defective.
• If the issues are not yet sorted out, then the mechanic will use a digital voltmeter/ ohmmeter and connect it to the vehicle.
• Once the circuit is inspected, he will thoroughly check all the harness and repair them accordingly.
• Whenever the mechanic or a trained professional, repairs any of the component like wires or connectors, he will reset the code and test drive the vehicle again to see if the error code appears again.
• This can actually help the mechanic to know if the problem is fixed.

Common Mistakes When Diagnosing The P0C18 Code

• Defaults in the drive motor generator power inverter