P0C20 OBD Error Code: Problem & Solutions
OBD Code P0C20 - Auxiliary Transmission Fluid Pump Phase U-V-W Circuit/Open
The trouble code P0C20 can be defined as Auxiliary Transmission Fluid Pump Phase U-V-W Circuit/Open. The motor control module is a part of the drive motor generator power inverter control module and the electric motor is controlled by it. The high voltage current driving the transmission is monitored by the motor control module. Now if the current is very less, then in that case the transmission would not be able to move the automobile. Whenever the motor control module would detect this, then the P0C20 fault code would start flashing up.
Learn More About OBD Error Code P0C20
It is always good to learn more! That is the reason why we are here to help you out in gaining more knowledge about the P0C20 error code. The auxiliary transmission fluid pump is being monitored by the engine control module. This trouble code would be set by the ECM when the auxiliary transmission fluid pump would not be as per the specifications set by the manufacturer. 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 Auxiliary Transmission Fluid Pump Phase U-V-W Circuit/Open?
- Some flaws in the auxiliary transmission fluid pump
- Auxiliary transmission fluid pump harness might be opened or sometimes shorted
- Auxiliary transmission fluid pump circuit might have inadequate electrical connection
Replace/Repair These Parts To Fix Code P0C20
- Transmission Fluid Pump Harness - Faulty pump harness can affect the performance directly and can cause erratic pump behaviour with harsh shifts. Thus, replace faulty harness now!
- Engine Control Module -
There can be some engine performance issues due to faulty engine control
module. If the ECM fails or has any problems it can lead to performance issues
with the vehicle like misfires, hesitation, loss of power, and sometimes even
decreased fuel economy.
- Powertrain Control Module -
PCM stands for powertrain control module. It is a car part, a control unit
which is utilized on motor vehicles. It is generally a combined control unit,
consisting of the engine control unit (ECU) and the transmission control unit
(TCU).
- Electronic Control Unit -
If your automobile's check engine light remains on constantly, and never goes
off, there's a good chance that your vehicle has a damaged electronic control
unit. There are a lot of reasons why a car's check engine light will remain on.
The most common reason is a defective ECU.
- Diagnostic Tools - It is always advisable to use correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in efficient manner. Buy new quality diagnostic tools from us today!
- Transmission Fluid Pump - If the transmission fluid pump fails, the fluid of the pump will not be able to circulate in the transmission and the driver may smell the fuel burning. Thus, it might need immediate replacement.
Symptoms Of The OBD Error Code P0C20
Our main motive is to achieve customer satisfaction as for us our customers are everything and that’s why we will help you to diagnose P0C20 code by mentioning some major symptoms below:
Common Symptoms
- The service engine soon light can start lighting up
How To Correct Auxiliary Transmission Fluid Pump Phase U-V-W Circuit/Open 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 P0C20:
- Make
sure to mend the faulty auxiliary transmission fluid pump circuit
- It
is essential to restore the flawed auto transmission oil pump
- Repair
or replace the quirky auxiliary transmission fluid pump
- Rehabilitate
the defaults in the PCM/ECM
- Carefully
adjust the faults in the auxiliary transmission fluid pump harness
- The
auto transmission fluid pump should be restored to working order
- It is necessary to perform proper service of the unsound electronic control unit
However,
if you face any issue then we have stocked a wide range of best priced engine
control module, transmission fluid pump, automatic transmission fluid pump
harness, motor control module boot, automatic transmission oil cooler pump,
transmission cooler pump and more to help you out in fixing your car.
Easy Diagnosis Of Engine Error OBD Code P0C20
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.
- 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.
- Check for the damaged auxiliary transmission fluid pump and its components for error. It the mechanic finds the fault in the connectors in relation to the battery, replace it immediately.
- Also check for the particular battery cells emitting high voltages and thus might need battery replacement as well.
- Some smoke or steam might start getting emitted from underneath the car hood. The ignition timing could be set wrongly and there would be a need to adjust it properly. If, when looking under the hood, you notice that the drive belts appear loose, they need to be tightened or completely replaced.
- If you find out that there is a pool of fluid underneath the car, this could be a sign of failure in the cylinder head gasket. That will be confirmed in the form of billowing smoke being blown from the exhaust system.
- Parts or components should not be replaced with reference to only a P0C20 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
- If all the components seems to work perfectly, inspect the PCM for faults and replacement along with reprogramming.
Common Mistakes When Diagnosing The P0C20 Code
- Non performance of the auxiliary transmission pump
- The drive motor generator power inverter control module might not function properly