Guide To P06B6 OBD Error Code Solutions

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Obd error code P06B6 flashing? Worried what it means? Well, just don’t stress over it as we are here to help you out with all your concerns. This code relates to the knock sensor of your vehicle. What is a knock sensor? Well, knock sensor is the part that tells your engine control module that there are unusual vibrations in the engine due to a lean fuel mixture or incorrect timing. Willing to know more about this code? If your answer is “YES” then you must go through our following sections.

OBD error code P06B6 will be set by your vehicle’s powertrain control module (PCM) when it detects some faults inside the PCM’s circuit. In case the PCM inspects some internal errors in the knock sensor processor it will store this code P06B6. There are number of causes which result in the occurrence of this code as listed below.

What causes this problem with the Internal Control Module Knock Sensor Processor 1 Performance?

• Malfunctioning powertrain control module or a programming error with it
• Faulty knock sensors
• Damaged knock sensor wiring and connectors
• Blown out fuses and malfunctioning controller power relay
• Bad circuits or connectors in the CAN harness
• Control module ground shortage

1. Knock Sensor - Looking for knock sensors to solve this problem? If YES, then we have good news for you. You can shop with us premium knock sensors for your specific vehicle in no time. So, what are you waiting for?
2. Powertrain Control Module - Powertrain control module also commonly known as the PCM, is one of the causes behind this issue if damaged. So why not change it?
3. Engine Control Module - Chances are that your vehicle’s ECM is facing some issues if it flashes obd error code P06B6. So why not replace them and get everything in order again?
4. Digital Voltmeter - If you want to be that perfect DIY guy, all you need is perfect DIY tools. Where can you find them? Nowhere else than PartsAvatar.
5. Ohmmeter - Dreamt of being a DIY guy? Always wished to get your vehicle fixed yourself? Well now is your time. Get your hands on these DIY and diagnostic tools such as ohmmeter and you can diagnose your car yourself.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P06B6 here:

Common Symptoms

• Engine area will make loud noises
• There might be a fall in fuel economy
• There might occur various engine drivability symptoms
• Appearance of other diagnostic trouble codes

Here are some ways with the help of which you will be able to correct the OBD Code P06B6:

Replace or repair the damaged or problematic pcm programming

• Replace or repair the bad knock sensors
• Repair or replace all the related wirings and connectors, if found damaged or problematic

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Here are some steps which you should follow in order to diagnose this P06B6 fault code:

Believe us or not but diagnosing this error code P06B6 can be a real challenge for you. Since it also involves the reprogramming issues you will need the reprogramming equipment’s or else you won’t be able to repair this problem successfully.

Now, before you attempt to diagnose and correct this error code P06B6, you will have to make sure that you rectify and fix all the ECM/PCM power supply codes that already exists.

Before you make sure of this controller defective, you can attempt various preliminary tests via using a diagnostic scanner, a digital volt/ohmmeter and a reliable vehicle information.

Nextly, you will need to connect the scanner to the diagnostic port of your vehicle and retrieve the stored codes. Clear the codes and conduct a test drive. If the code is reset, continue with this short list of preliminary tests.

While diagnosing this error code P06B6, information and prior knowledge will be your greatest tool. Try to find the suitable technical support bulletin and If you find the right TSB, it may yield diagnostic information that will help you greatly. Now use this information to get connector face views, connector pinout charts, component locators, wiring diagrams, and diagnostic flow charts related to the code and vehicle in question.

Now, in order to check the controller power supply, use the DVOM. If you come across any fuses or relays that are blown out, make sure to replace them (check the fuses when the circuit is loaded). In case all the relays and fuses are operating as desired, conduct a visual inspection of the related wires and harnesses. Also check the chassis and engine ground junctions. Use the TSB to ascertain the ground locations and check the ground integrity through DVOM. Check and visually inspect the system controller for any signs of heat or damage. If you come across any controller that is bad, you can consider it as defective.

Now, if controller power and ground circuits are unblemished, you can suspect a damaged controller or a controller programming blunder. You will need to undergo reprogramming for the controller replacement. Different vehicles/controllers will require on-board reconstructing that may just be done through a dealership or other qualified source.

Keep in mind that unlike other codes P06B6 code is likely caused by a faulty controller or a controller programming error. Also, check the system ground integrity by connecting the negative test lead of the DVOM to ground and the positive test lead to battery voltage.

Common Mistakes When Diagnosing the P06B6 Code

Common mistake that you are likely to commit while diagnosing this error code P06B6 is that of ignoring the following failures:

• Powertrain Control Module (PCM) failure
• Wiring issue

P06B7 - Internal Control Module Knock Sensor Processor 2 Performance