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Guide To P0C55 OBD Error Code Solutions

OBD Code P0C55 - Drive Motor "B" Position Sensor Circuit "A"

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The trouble code P0C55 can be defined as Drive Motor "B" Position Sensor Circuit "A". The drive motor "B" position sensor circuit is being monitored by the motor control module. This trouble code would be set by the motor control module when the drive motor "B" position sensor circuit would not be as per the specifications set by the manufacturer.

Learn More About OBD Error Code P0C55

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" Position Sensor Circuit "A"?

  • Malfunctioning hybrid vehicle motor
  • Hybrid vehicle motor harness might be open or little
  • Substandard electrical connection in the hybrid vehicle motor circuit
  • There can be distorted HV control ECU
  • Air leak in the DPF might change the readings of the sensor
  • Faulty gaskets
  • Malfunctioning exhaust manifold
  • There can be inoperative ECU
  • Car exhaust system might be flawed

Replace/Repair These Parts To Fix Code P0C55

  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. 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.
  3. Engine Control Module - It is not always the components, but the ECM that can also be faulty. It can cause misinterpretation of correct data thus leading to wrong operational decisions which will affect the transmission and overall engine performance. Thus, replace faulty module and reprogram it now!
  4. Powertrain Control Module - Powertrain Control Module can also be faulty in rare cases and thus needs through checks for system and software errors. Thus check and replace it, if required.
  5. 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.
  6. Electronic Control Unit - The ECU manages the cooling system to control the battery operating temperatures and thus must be replaced, if found faulty. Thus, buy new ECU modules and components from us!
  7. Diagnostic Tool - Make use of quality diagnostic tools to resolve any OBD error code. Buy quality diagnostic tools from us!

Symptoms Of The OBD Error Code P0C55

Willing to know some common symptoms of OBD Trouble Code P0C55? Your wish is our demand. Have a look at them below:

Common Symptoms

  • Visibility in the check engine light
  • There might be a spark knock
  • Less fuel economy
  • The engine oil might exhibit dilution from the ECUs which would attempt to rise engine temperature
  • Issues related to engine surge

How To Correct Drive Motor "B" Position Sensor Circuit "A" Issue

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 P0C55:

  • You must fix the defective car exhaust system parts
  • Make sure to mend the faulty hybrid vehicle motor
  • It is essential to restore the flawed battery generator
  • Repair or replace the quirky engine control module
  • Rehabilitate the defaults in the hybrid vehicle motor harness
  • The malfunctioning drive motor output shaft should be repaired or replaced as per the need
  • Carefully adjust the faults in the ECU

There is no need to be anxious as Parts Avatar - Car Parts Online is here to help you out! We have high grade drive motor generator, motor position sensor, motor control module, generator assembly, drive motor output shaft, car exhaust system parts, exhaust manifold, exhaust gasket and a lot more for our precious customers.

Easy Diagnosis Of Engine Error OBD Code P0C55

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 drive motor "B" position sensor circuit should be done properly.
  • A specialized tool may be used to test the drive motor "B" position sensor circuit. Other tests of the drive motor "B" position sensor circuit and its components may help pinpoint the problem, as well as inspection of the wiring and connectors. 
  • 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 P0C55 Code


  • Failure in the drive motor generator assembly

Other Diagnostic Codes Related To OBD Code P0C55

P0C56 - Drive Motor "B" Position Sensor Circuit "A" Range/Performance

P0C57 - Drive Motor "B" Position Sensor Circuit "A" Low

P0C58 - Drive Motor "B" Position Sensor Circuit "A" High

P0C59 - Drive Motor "B" Position Sensor Circuit "A" Intermittent/Erratic