P0B08 - OBD Trouble Code

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The trouble code P0B08 can be elucidated as Auxiliary Transmission Fluid Pump Motor Phase W Current High. This code is a generic trouble code, meaning it applies to all vehicles equipped with the OBD-II system, especially those made from 1996 up to present. It’s also more common among Audi, Citroen, Chevrolet, Ford, Hyundai, Nissan, Peugeot, and Volkswagen vehicles. Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model, powertrain configuration type, to another.

Want to learn something more about the P0B08 fault code? The auxiliary transmission fluid pump motor is being monitored by the engine control module. This trouble code would be set by the ECM when the auxiliary transmission fluid pump motor signal would not be as per the specifications set by the manufacturer.

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

• Imperfect auxiliary transmission fluid pump
• Issue of unbolted auxiliary transmission fluid pump harness
• Unacceptable electrical connection in the auxiliary transmission fluid pump circuit

1. Exhaust System Parts - Defective car Exhaust System Parts can be a major reason why P0B08 code depicts. So make sure to replace it online so that you don’t have to face any further issues.
2. Muffler - Everything is okay with the Automatic Transmission Fluid and still OBD code P0B08 triggering? Then there must be some defects in Muffler. Replace them as soon as possible.
3. Automatic Transmission Fluid - P0B08 code flashing? Get your Automatic Transmission Fluid inspected from a mechanic.
4. Powertrain Control Module - If everything is alright with Automatic Transmission Fluid, then there is surely some defect in Powertrain Control Module. Get it replaced before the situation gets worse.
5. Engine Control Module - P0B08 code can display due to some issues in the Engine Control Module. So it is very important to replace the Engine Control Module with us at equitable prices.
6. Transmission Fluid Pump - Do you remember when was the last time you got your car Transmission Fluid Pump checked up? A dirty Transmission Fluid Pump can cause a lot of issues like displaying P0B08 code.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• The service engine soon light can start lighting up

The repairs which you will have to do to correct this fault code are simply straightforward; you can surely pinpoint the necessary repairs on the basis of your diagnosis. Have a look at some common fixes:

• Make sure to mend the faulty auxiliary transmission fluid pump harness
• The malfunctioning auxiliary transmission fluid pump circuit should be repaired or replaced as per the need
• Recondition the non-functioning auxiliary transmission fluid pump 
• Adjust the flawed powertrain control module

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Here are some steps which you should follow in order to diagnose this fault code:

• A careful inspection of the vehicle is carried out by the mechanic with the help of a scanner.
• After this inspection, he will recover every stored codes in the vehicle as well as freeze frame data by inserting a scanner to the diagnostic port of the vehicle.
• He will store this information as it may help him with further diagnosis.
• After the codes are recovered, the vehicle is reset, test- driven to check for the occurrence of the error code.
• He will clearly know that an erratic condition has prevailed if the code does not return quickly.
• But if the code returns instantly, he will then start inspecting the transmission fluid for any leaks.
• In some cases, the transmission fluid can be dirty or it can be contaminated.
• The area of leak will be found and fixed. The dirty or contaminated fluid should be replaced with clear fluid.
• Sometimes the fluid may be not be filled at the correct level, which the mechanic will find during diagnosis. Sometimes, the solenoid itself can be defective which has to be checked for any damages.
• After this, the technician will visually inspect every wires, connectors, harness and fuses for any possible damages or defective and repairs them as needed.
• You must always know that once the error code is repaired, it is always the best idea to test drive and check the vehicle if the error code appears again which can help the technician to know the area of fault and as to how the error code occurred in the vehicle.
• This can easily help the mechanic to fix the error code.

Common Mistakes When Diagnosing The P0B08 Code

• Common mistakes while diagnosing this trouble code are unnecessary and expensive replacements which usually happen when one don’t follow all the steps carefully. In this code usually people replace auxiliary transmission fluid pump motor without even properly diagnosing it.
• The most common mistake while diagnosing this code is missing out on diagnosing steps which further leads to the expensive and unnecessary replacements. It is always recommended to seek help of experienced diagnostician to avoid any mistakes.