P0B0C - OBD Trouble Code

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Finding an OBD code flashing can cause a great level of stress, especially if you have no clue what that means. But take a deep breath and don’t worry we have plenty information for you on error code P0B0C. This particular code is set by the Powertrain control module or the Engine Control Module when it finds the auxiliary transmission fluid pump signal is not within the manufacturer's specifications.

This is a generic OBD-II trouble code, and is set by the Engine Control Module. The ECM is responsible for monitoring the Auxiliary Transmission Fluid Pump. When it receives a signal that is not as per the specifications prescribed by the manufacturer it will go ahead and set this code, the check engine light will also be turned on.

What causes this problem with the Auxiliary Transmission Fluid Pump Hydraulic Leakage

• The Auxiliary Transmission Fluid Pump is faulty
• Harness of the Auxiliary Transmission Fluid Pump Is open or shorted
• Poor electrical connection in the Auxiliary Transmission Fluid Pump Circuit

1. Auxiliary Transmission Fluid Pump - You can fix repairs and see if that helps clear the P0B0C error, otherwise go for replacement.
2. Auto Transmission Fluid Pump Harness - Thoroughly check the harness for repairs, and fix it. If that doesn’t still help resolve P0B0C error, then you will have to replace the harness.
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4. Powertrain Control Module - If you need to replace your PCM, make sure you buy a quality assured PCM compatible with your vehicle. Parts Avatar makes it easy to buy auto parts, simply select your vehicle’s make, model and year of manufacture and order now!
5. Engine Control Module - If you find that repairing isn't fixing the problem with your ECM, go for replacement with us. We ship all across Canada in a matter of days. Order online easily and track your shipment till it reaches you.
6. Transmission Fluid Pump Circuit - First repair the circuitry to see if the P0B0C code resets, if it does then replacement will be the only option left.

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0B0C code by mentioning some major symptoms below:

Common Symptoms

• Service Engine Soon Warning Light is on or Check Engine Light is on
• Vehicle may become Immovable

Have a look at some ways with which you can correct the P0B0C code:

• Repair or replace the Auxiliary Transmission Fluid Pump
• Repair or replace the ECM or PCM
• Repair or replace the faulty harness and circuits

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of Transmission Fluid Pump, Transmission Fluid Pump Harness, Transmission Fluid Pump Circuit, Engine Control Module, Powertrain Control Module and many more. Now all your problems would vanish within no time.

When the P0B0C code is set, you may find white smoke, which is a sign that the fuel that is injected into the combustion chamber is not getting burned as needed. This white smoke could be present due to low engine compression or water in the fuel, or incorrect fuel pump timing etc. A dirty MAF sensor may result in the car overcompensating in its fuel-trim adjustments, this results in oxygen sensors reporting a fuel mixture issue. Before starting your diagnosis it’s good to take a look at these issues and correct them. Once that is sorted you can proceed by connecting the OBD scanner for your vehicle to the diagnostic port. Make sure you retrieve all the codes and freeze fame the data also, remember to make note of them all in the order of appearance. If you are able to find any codes set prior to P0B0C, then you will have to resolve them first. Previous codes can cause other error codes to set as well, so it’s important that they are taken care of first. After making note of all the codes, clear them and take your vehicle on a test drive to see if the code resets or if the PCM enters readiness more. If the latter happens, then you are having an intermittent condition, this condition may have to worsen before accurate diagnosis can be made. If the code is reset, then you will have to start your diagnosis, the first step is to check all of the electrical system connected with this issue.

Be thorough and check all the wires, circuits, connectors, harnesses etc. for damages like burning, breaks, corrosion, short etc. If you are able to find any of these issues, simply repair and correct them or opt for replacement. After you have sorted the circuitry you will have to clear the codes and again go on a test drive. Wait to see if the code returns or not (PCM enters readiness mode).If you find that the code is reset, then you will have to check all the parts pertaining to this problem. For this you will require your specific vehicles Technical Service Bulletins or TSB. Match them to the year of manufacture, make, model and engine. Once you have found it, match the symptoms and the error code P0B0C and see what diagnostic steps are mentioned in the TSB. Apart from having diagnostic steps the TSB will also have details of the parts and components related to this error. All the manufacturer specified configurations will also be present. Use the directions given by the TSB to fix your problem, the connector pinout charts, and circuit flow charts etc will be extremely helpful and enable you to avoid any issues with diagnosis. If you’re still confused and don’t know how to solve the code, take help from a trained OBD diagnostician and resolve this P0B0C code.

Common Mistakes When Diagnosing the P0B0C Code

• Failed Auxiliary Transmission Pump
• Leak in the Transmission
• Leak found in the Transmission Line

P0B0D - Auxiliary Transmission Fluid Pump Motor Control Module