Guide To P0B0B OBD Error Code Solutions

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Is P0B0B code set in your vehicle? If Yes, then this means that there’s an issue with the transmission fluid pump motor supply voltage circuit. You may also notice an increase in fuel consumption of your vehicle. Well, it is a symptom of this issue. Read more to know about this code, how to diagnose and correct it. This code is set by your vehicle’s engine computer known as the Powertrain Control Module.

when the transmission fluid pump is not able to to operate as requested by the Engine Control Module. The job of the auxiliary transmission fluid pump is to maintain optimum fluid pressure in the transmission. This is a generic OBD-II code, and is set by the PCM, which is responsible for monitoring the auxiliary transmission fluid pump motor. You can resolve the P0B0B error by following the diagnostic steps mentioned in this article.

What causes this problem with the Auxiliary Transmission Fluid Pump Motor Phase U Current High?

• Problems with the Auxiliary Transmission Fluid Pump
• Open or shorted harness of the Auxiliary Transmission Fluid Pump
• Poor electrical connection in the circuit of the Auxiliary Transmission Fluid Pump

1. Auxiliary Transmission Fluid Pump - You can repair and see if that helps clear the P0B0B error, otherwise go for replacement.
2. Auto Transmission Fluid Pump Harness - You can first check the harness for repairs, and accordingly fix it. If that doesn’t still help resolve P0B0B error, then you will have to replace the harness.
3. Diagnostic Tools - You can buy the best diagnostic tools to help you resolve your OBD codes. Choose from a wide price range online at Parts Avatar, order and get free shipping on orders worth CAD $99 and above.
4. Powertrain Control Module - If you feel your have to replace your PCM, make sure you buy the best quality 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 - Go for replacement if repairing isn't fixing the problem with your ECM. We ship all across Canada in a matter of days. Order online easily and track your shipment till it reaches you. 

Willing to know some common symptoms of OBD Code P0B0B? Your wish is our demand. Have a look at them below:

Common Symptoms

• Check engine light on
• Decreased fuel efficiency

We have listed out some ways which would help you to correct the occurrence of OBD Code P0B0B. They are mentioned here as follows:

• 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, Poor Electrical Connection, Engine Control Module and many more. Now all your problems would vanish within no time.

During a regular driving situation, whenever you press the brakes, the expectation is that the car will quietly slow down and eventually stop. The hydraulic pressure assists in applying the power to the brake pedal, the force applied by your foot engages a piston and caliper which has brake pads attached so that pressure can be put on the rotor. In a P0B0B error, there’s most likely an issue with the systems that the sensor is monitoring, however wiring can also be a sole cause for the code to set. Below we have mentioned simple ways to rule out what could be causing the error and how to resolve them.

Get the OBD scanner for your vehicle and connect it to the diagnostic port of your vehicle. 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 P0B0B, 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 P0B0B 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 P0B0B code.

Common Mistakes When Diagnosing the P0B0B Code

• Failed Auxiliary transmission pump relay
• Failed Powertrain Control Module (PCM)
• Problems with the wiring and electrical circuitry