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P0C63 OBD Error Code: Problem & Solutions

OBD Code P0C63 - Drive Motor "B" Position Sensor Circuit "B" Intermittent/Erratic

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OBD-II Code Drive Motor "B" Position Sensor Circuit "B" Intermittent/Erratic is is means of a Drive Motor "B" Position Sensor Circuit "B" Intermittent/Erratic.


The Drive Motor Position Sensor communicates with the Motor Control Module of the Drive Motor Output Shaft position. If the Motor Control Module fails to constantly find out about the output shaft position, then this sets code P0C63. The Drive Motor Position Sensor is the inner feature to the Drive Motor Generator and does not do a detached service.

Learn More About OBD Error Code P0C63

The motor resolver is a kind of sensor that checks for the magnetic poles positions, which are absolutely necessary for make certain of the greatly effective control of the MG1 and MG2. The resolver has a stator that is comprised of an excitation coil and two detection coils. Since the rotor is oval shaped, as the rotor is running, the gap set between the stator and the rotor is changing. A current that repeatedly occurs within an advanced course of decision in flowing frequency takes place past the excitation coil, and detection coils S and C output repeat currents in a manner conforming to the sensor rotor position. The HV control ECU identifies the complete position of the rotor in a manner conforming to the stages of detection coils S and C and their waveform height. Moreover, the CPU estimates the quantity of conversion to the position within an established advancement in time length, as a way to utilize the resolver as a speed sensor.


What causes this problem with the Drive Motor "B" Position Sensor Circuit "B" Intermittent/Erratic?


  • Defective Hybrid vehicle motor
  • Open or shorted Hybrid vehicle motor harness
  • Bad electrical connection to Hybrid vehicle motor circuit
  • Defective HV control ECU

Replace/Repair These Parts To Fix OBD Code P0C63

  1. Drive Motor Generator - A recurrent sign of a problem that entails your starter is when turning your key and seeing that no parts are working. You might be hearing an engine noise or a loud clanking metallic sound. The starter solenoid often results with this problem or a combustive motor or you are faced with an electrical issue. Whatsoever, a dead battery might also result with this type of problem. If this ever takes place, you should call on an experienced mechanic to detect the starter, ignition system, and other electrical parts, as it might indicate many susceptible problems. Sometimes, when the ignition switch comes on, you will begin hearing the starter energize, but will not hear the motor crank over. Other times, these issues that surround the starter are simply mechanical under any situation. Most likely, the issue might occur due to the gears engaging into the flywheel. It could be either the stripping within removal of the gear in resistance to the flywheel. Otherwise, the engine is is able to turn over, and you should call on an experienced mechanic to easily replace the starter.
  2. Motor Position Sensor - You might sense that your car won’t speed up as it’s expected to, and it jerks or stalls while it tries to pick up speed. It might speed up smoothly, but you are going to lose all that power. On the other hand, your car might speed up right away while you are driving, even when you have not pressed on the accelerator. If these signs are evident, you’re most likely to face a problem with the Motor Position Sensor. In complying to the MPS, it could to send the correct input to the computer module, so it’s unable to assist the engine to perform effectively.
    When the car speeds up as it drives, this usually means the butterfly valve within the throttle closes up and suddenly pops open as the driver presses on the accelerator. The car will then give a fast and sudden burst of speed all due to the sensor being unable to check up the closing placement of the throttle. As the TPS ultimately starts to fail, even in segments, you need to replace it immediately. Having the TPS replaced usually involves clearing out all the related error codes, therefore you might need to reprogram the software of the new TPS module to correspond with the remains of the engine management software. This all depends on an experienced mechanic who can give a correct diagnosis, and install the proper replacement part.
  3. Generator Assembly - The generator might be facing a problem with dimming or flickering lights.
    If you see any kind of flickering or dimming of lights while running the car, this can signal that the generator is not successful in processing a certain amount of power surge to keep up with the car’s electrical needs. The dimming or flickering of lights may happen simultaneously as these specific actions are involved while the car is running, for instance, the lights are dimming when pressing on the accelerator, raising up the stereo volume, or another light turns on. This symptom might signal that a generator is not able to keep up with the necessities of the electrical system in the car while it’s running, and when adding on more loads.
  4. Drive Motor Output Shaft - The metal seal that retains fluid within the transfer case is essential for the vehicle’s transmission to perform accurately. When a damaged seal is leaking fluid, it decreases the fluid volume that is currently generating within the transmission. This occurs when there is a loss in fluid pressure, making it even more difficult to switch gears for an automatic or manually switched transmission. The metallic output shaft seal could suddenly break or wear out, which results in a blast of noises that is coming from beneath the vehicle. In these circumstances, such noises are a result of a decline in lubricants within the transfer case or metallic pieces grinding together. If you see that your transmission is having a difficult time with switching to higher or lower gears, or you hear noises that are sourced by the location your transmission is placed, you need to call on an experienced mechanic instantly to detect this problem and give a highly efficient solution.
  5. Powertrain Control Module - A PCM that has decreased can become intermittent to a degree that your vehicle will fail to start or begin to stall when running. You will begin to see that exhaust fumes have shorted when the car is running and emissions system control signals are declining. Engine performance errors are a recurrent symptom of a probably issue with the PCM. The PCM might throw off the timing and fuel settings of the engine, which can put a negative impact on the engine performance. A faulty ECM may lead the vehicle to experience a reduction in fuel efficiency, power and speed. When constricting to a PCM that doesn’t perform correctly, you need to have it replaced as immediately.

Symptoms Of OBD Error Code P0C63

Are you curious as to why is it so critical to learn about the symptoms of this issue? Apparently, it is highly important to learn the symptoms of the issue so that you can simply identify it. Do take this in mind, let us reveal details on some recurrent symptoms of OBD trouble code P0C63.


Common Symptoms


  • The engine oil will show dilution by when ECUs tries to hike engine temperature. Sometimes, vehicles will slightly advance the fuel injection timing to top center after burning a small quantity of fuel to raise exhaust temperatures. A certain amount of this fuel will access the crankcase. When the ECU finds out the need to regenerate the DPF, the service life of the oil will be considerably short.
  • Defective or corroded wiring
  • Delay in acceleration
  • Declined fuel efficiency

How To Correct P0C63 Drive Motor "B" Position Sensor Circuit "B" Intermittent/Erratic

In order to correct this problem you may need to undertake doing some replacements for the faulty parts P0C63 as follows:


  • If voltage and ground signals do not act in accordance with vehicle producer’s directions, and all fuses and relays have been examined and proceeded, deactivate the fuel shutoff valve connector and all associated control module connectors, then conduct a progression and resistance exam on all associated circuits.
  • A fitting OBD-II scanner, or code reader, and a digital volt/ohmmeter will be very helpful in conducting a diagnosis with success. 
  • Many tools will be contributory in diagnosing this code with success. 
  • Detect local, state, and federal laws prior having all emission-associated parts removed. 

If there’s a demand for any components to repair this issue, these can easily be found at Parts Avatar. Our team also has in stock the best collection of automotive parts and most friendly prices easily found on our website. If ever you are in need of a Drive Motor Generator, Motor Position Sensor, Motor Control Module, Generator Assembly, Drive Motor Output Shaft, you can easily depend on our team for high-end automotive parts.

Easy Diagnosis Of Engine Error OBD Code P0C63

The following are a few steps that you must follow as a way to diagnose this P0C63 trouble code:


When pressing your foot down on the brakes, you anticipate that your vehicle will slow down without noise and suddenly come to a stop. Your foot contributes power on the brake pedal with the help of hydraulic pressure. Your foot puts on force that connects a piston and caliper with brake pads that are engaged to place pressure onto the rotor; usually they are bounded with abrasion and heat resistance metal or ceramic. The P0C63 OBD2 particularly directs to the camshaft “cam” timing. In other words, if the cam timing is too lethargic, this will illuminate the engine light and set up the code.


Common Mistakes When Diagnosing the P0C63 Code


  • Failed Drive motor generator assembly

Other Diagnostic Codes Related To OBD Code P0C63

P0C5F - Drive Motor "B" Position Sensor Circuit "B"

P0C60 - Drive Motor "B" Position Sensor Circuit "B" Range/Performance

P0C61 - Drive Motor "B" Position Sensor Circuit "B" Low

P0C62 - Drive Motor "B" Position Sensor Circuit "B" High