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Error Code P0C05: What It Means & What To Do?

OBD Code P0C05 - Drive Motor "A" Phase U-V-W Circuit/Open

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The trouble code P0C05 can be explained as Drive Motor "A" Phase U-V-W Circuit/Open. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile. One thing which you must keep in mind that its symptoms as well as causes would surely vary as it depends upon a number of things.

Learn More About OBD Error Code P0C05

Do you want to know more about the P0C05 fault code? Don’t worry! Parts Avatar Canada is here at your service. It is the MG ECU which is situated in the inverter with converter assembly which would monitor its interior operation and then this trouble code would be set when it would detect some malfunctions.

What causes this problem with the Drive Motor "A" Phase U-V-W Circuit/Open?

  • Imperfect hybrid vehicle motor assembly
  • There can be unlocked hybrid vehicle motor assembly harness
  • Hybrid vehicle motor assembly circuit electrical connection might be inadequate

Replace/Repair These Parts To Fix Code P0C05

  1. Car Battery - Did your mechanic just found out that there is some fault in the Car Battery? Buy top notch Car Battery from us at economical prices.
  2. Battery Current Sensor - A broken Battery Current Sensor can cause a lot of issues. It would be nice if you get it replaced on time.
  3. Hybrid Battery - Everything is fine with the engine control module and still OBD code P0C05 flashing? Then there is definitely some fault with the Hybrid Battery. Get it checked and replace if needed.
  4. Battery Coolant Pump - Battery Coolant Pump is an important car part which should never be neglected. May be there is some fault in it due to which P0C05 code may start flashing.
  5. Engine Control Module - A faulty Engine Control Module can be troublesome. You can always rely on us as we have best auto parts for our customers.
  6. Motor Assembly Harness - P0C05 code can display due to some issues in the Motor Assembly Harness. So it is very important to replace the Motor Assembly Harness with us at equitable prices.
  7. Motor Assembly - Everything is fine with Engine Control Module and still P0C05 code triggering? Then you must get your Car Motor Assembly checked.

Symptoms Of The OBD Error Code P0C05

There could be countless symptoms which that would accompany with this fault code. Willing to know some common symptoms of OBD Trouble Code P0C05? 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

How To Correct P0C05 Drive Motor "A" Phase U-V-W Circuit/Open Issue

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

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of hybrid powertrain control module, body control module, power inverter and a lot more. We are sure that now all your issues would be resolved.

Easy Diagnosis Of Engine Error OBD Code P0C05

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0C05 code to be stored:


  • The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
  • After performing a careful inspection, every of the stored codes and freeze frame data are retrieved as it can help down the way for further diagnosis process.
  • Most often he has to inspect the solenoid itself to see if they are faulty or damaged. Additional error codes that are stored in the vehicle are also addressed.
  • The mechanic performs a continuity test between the PCM and solenoid to check the resistance.
  • If the solenoid or the control modules are not faulty, he will then re-tune the code and test drive the vehicle.
  • On test driving, if the P0C05 code does not return soon, he will know that an erratic condition exits.
  • But if the error returns instantaneously, he will check every components of the control module as well as the circuit like connectors, wires, harness, fuses etc for any possible fault.
  • If any component is damaged, he will fix them right away.
  • After performing this repair, he will inspect the transmission fluid as well as its level.
  • If the level is below the manufacturer’s specification, it has to be refilled and if the fluid is murky or contaminated it needs to be replaced.
  • Every time a repair work is carried out, make sure that the mechanic test drives the vehicle after every repair so that the diagnosis is successful. This can eventually help him to know as to where the error occurred.

Common Mistakes When Diagnosing The P0C05 Code


  • There can be a failure in the drive motor generator power inverter control module
  • Defaults in the drive motor generator assembly

Other Diagnostic Codes Related To OBD Code P0C05

P0C06 - Drive Motor "A" Phase U-V-W Circuit Low

P0C07 - Drive Motor "A" Phase U-V-W Circuit High