P261B - OBD Trouble Code

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Check engine light flashing on? Stressed? Well, here we have written all that you need to know about the error code P260C. The PTO control circuit high is also known as the OBD-II code powertrain control module (PCM) failure in simple terms. All the auxiliary equipment including the dump bed or plow is allowed by the PTO to be controlled hydraulically utilizing the vehicle’ transmission. Whenever the PTO unit is faulty, the OBD-II code P260C is stored followed by an invalid PTO system.

The water pump is a part of the engine's cooling system. The job of the water pump is to cool down the engine with coolant, which in turn assists in making sure the engine does not overheat. Engine overheating is a very dangerous thing for the car and can lead to eventual engine failure. It is important to understand how the water pump works in the engine’s cooling system so you can be better aware of why your car’s water pump may be failing.

OBD code P261B gets stored in the powertrain control module when the coolant pump ‘B’ performance goes out of range.

What causes this problem with the Coolant Pump "B" Control Circuit Range/Performance?

• Faulty engine coolant pump
• Faulty coolant pump relay
• Coolant pump harness and connector issue
• Coolant pump circuit and wiring problems
• PCM programming issue

1. Engine Control Module - If there is any corrosion or breaks in the internal wiring of the harness, then it can cause a short in the ECM or can also cause corrosion in the ECM through the wiring harness. You can always rely on us as we have the best auto parts for our customers.
2. Powertrain Control Module - The onboard computer, or powertrain control module is the brain of the engine control system. Now if the brain is not working properly, then neither is the car engine. Get it replaced before the situation gets worse.
3. Electronic Control Unit - Is your car jump starting on reverse polarity? Or are you facing some intermittent starting issues? If yes, then it indicates that your electronic control unit is bad. So it is very important to replace the defective electronic control unit with us at equitable prices.
4. Diagnostic Tools - Buy quality diagnostic tools to check and diagnose OBD code P261B error with the help of experienced mechanic. Visit us today!
5. Engine Coolant Temperature Sensor - The most common symptom which is associated with the issues in the engine coolant temperature sensor is the poor fuel economy. Reduction in the fuel economy would also hinder engine performance. Purchase top notch engine coolant temperature sensor online.
6. Water Pump - Due to the vital role the pump plays in cooling the engine, if it stops working, there will be fast consequences including possible all-out engine failure. Thus, replace it now!
7. Hybrid Drive Cooling Pump – If the coolant pump fails, the engine may come under a lot of load and may overheat and completely shut down its operations. To avoid this, the coolant pump needs to function properly. Hus, replace it immediately.
8. Water Pump Pulley – Due to loose pulley, the water pump may not be able to inject the coolant properly and can also lead to overheating of the pulley belt due to increased friction. Thus, replace it now!
9. Electric Water Pump Relay – Faulty relay system and wiring can cause the water pump to become inoperative and as the pump motor may have an open or short in the relay circuit. Thus, check and replace it now!

Interested in knowing the symptoms to OBD code P261B? If yes, then you have arrived at the right place. We at PartsAvatar have listed out few common symptoms associated with this fuel injector problem.

Common Symptoms

• Check engine light illumination
• Engine may overheat and stall
• Coolant leakages from under the hood
• Radiator emitting steam
• Rust and corrosion around water pump hoses

After understanding the symptoms and few common causes behind the OBD error code, we are here to help you out in understanding the ways and means to correct the issue. To solve any issue you need to follow certain steps, and to solve OBD error code P261B, you will need to undergo the following replacements:

• Faulty engine coolant pump replacement
• Faulty pump relay replacement
• Damaged wiring and connector replacement
• PCM replacement and reprogramming

Apart from this, you might need to replace other damaged parts too like Pcm, Coolant Pump, Coolant Pump Relay, Water Pump, Electronic Pressure Regulator, Water Pump Relay and more. You can easily find all these parts with us. Not only that you can get these parts shipped to your door free, if your cart value happens to exceed $99.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P261B code to be stored:

• Firstly, consult the technical service bulletins (TSB) for your vehicle. If the problem and diagnosis is already mentioned, it can save a lot of time and money.
• Inspect the wiring and connectors in relation to the water pump and relay circuit. Find damaged, corroded or broken wirings and replace them immediately. Also check for damaged connector terminals and replace them.
• Using a DVOM, check for the resistance of the water pump. If the resistance is found to be infinite or zero, then the coolant pump might have an open or short in its circuit.
• Next, check for the power supply to the coolant pump. The ideal power should be of 12 volts. If the power is present, then everything is fine, otherwise suspect faulty water pump relay. Replace the faulty wiring and components immediately.
• If the water cooler and related wiring/components are working properly, then suspect for PCM faults. It may be replaced and reprogrammed, so that the error may not occur again.

Common Mistakes When Diagnosing the P261B Code

Always take assistance of a qualified technician to know the problem to this error. Never lose sight of the symptoms and never be in a hurry to come to a conclusion as sometimes very small issue can lead to flashing of the OBD errors. Some of the major mistakes related to code P261B are mentioned below.

• High voltage powertrain control module failure
• Leak in the cooling system
• Low coolant in the high voltage system
• Water pump failure