Guide To P0B71 OBD Error Code Solutions

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See the error code P0B71 flashing? Don’t know what to do? Well, we have a solution for you. Here’s how you can solve the error code P0B71. This trouble OBD-II code increased fuel consumption is primarily known as a hybrid battery voltage sense "K" circuit intermittent/erratic. A certain number of mini-batteries connected together constitute the high voltage battery pack. The code P0B71 is set by the high voltage control module, when an error has been detected by the high voltage control module one or more of the battery packs that make up the high voltage battery assembly.

It should be noted that the HV battery utilizes nickel metal-hydride batteries that doesn't require any charging from outside. While driving, at an invariable level, the power management control ECU regulates the SOC (state of charge) of the HV battery. The hv battery composition includes of 28 modules, each modules consists of eight 1.2 V cells in series. At around 14 locations, the battery smart unit regulates the battery block voltage. Also, 2 modules in a set make up a battery block. The presence of a fault when there is voltage difference (exceeding the standard) is determined by the battery smart unit, which also monitors the voltage of the battery blocks. The power management control ECU (HV CPU) illuminates the malfunction indicator lamp (MIL) and a diagnostic trouble code (DTC) is stored as soon as a malfunction is detected.

What causes this problem with the Hybrid Battery Voltage Sense "K" High?

• A defective battery smart unit
• A damaged HV battery assembly

1. Hybrid battery - Whenever the hybrid battery fails, one is likely to experience a fall in the MPG. Apart from this, a failure in the hybrid battery is likely to trigger symptoms that may lead to an unusual MPG. in addition to these the driver is likely to observe a high mileage. So in order to prevent expensive repairs we recommend you to change the hybrid battery right away from Parts Avatar.
2. Hybrid battery pack - Strange engine noises, the engine frequently running, instead of the normal switching to both ICE and electric motors is likely to be noted due to a failure in the hybrid battery pack. Apart from this an extremely bad gas mileage is likely to be noticed too. So in order to avoid further complications we advise you to change yours as soon as possible. Tune into Parts Avatar for the best quality products.
3. Hybrid battery voltage sensor - Well, the driver is likely to experience a bad battery voltage in the torque pro app. So we suggest you that before blowing a lot money on major repairs, you should get your hybrid battery voltage sensor replaced or repaired as soon as possible. Tune into Parts Avatar now!
4. Battery cable - Complications in starting the vehicle is one the most common problems triggered due to a corroded battery cable. Not only this, one is likely to see a low supply of electrical power. Now get your error code fixed instantly with Parts Avatar. We offer the best at the prices you have always wished for.
5. Battery assembly - A bad connection is the first thing the driver will observe as soon as the battery assembly is damaged. In addition to this a bad battery assembly if used for a longer span of time is likely to cause a failure in the battery leading to an expensive and time taking repair. Parts Avatar is just the right place that offers the best quality battery assemblies right at your doorstep.
6. Battery control module - A slow engine crank is a sure shot sign of a defect in the battery control module. No voltage, difficulty in starting the vehicle is likely to follow as soon as the battery control module is found to be defected. Get your error code P0B71 mended with the products available at Parts Avatar.
7. Powertrain control module - A malfunctioning PCM is likely to invite issues like a poorly running engine, increase in carbon emission, choking, stuttering and stalling of the engine. Well, to avoid these we recommend a replacement or repair of the powertrain control module before it worsens the condition of the system.
8. Exhaust system parts - A burning smell of the engine is likely to be seen as soon as there is a fault in any of the exhaust system parts. Also, performance issues are likely to arise due to a failure in the exhaust manifold. A leak or crack also leads to a reduction in the power, acceleration and efficiency of the vehicle. Repair or replace now.
9. Battery smart unit - A bad battery smart unit is likely to result in a fall in the fuel consumption of the vehicle (45-22 MPG). Not only this, even a minor fault in the battery smart unit leads to shortening of the life span of the entire system. Repair or replace it now from Parts Avatar before it gets too late.

Have you ever wondered why is it so important to know the symptoms of the problem? Well, it is extremely essential to know the symptoms of the problem in order to detect it. Keeping this in mind, let’s throw some light on few common symptoms of OBD error code P0B71

Common Symptoms

• A significant rise in the fuel consumption
• Engine light flashing on (or service engine soon warning light)

Once you know the symptoms of your vehicle’s problem, it becomes easy to detect it and get started with solving it. So, next on our list is few common steps to correct this issue with your vehicle’s.

• Mend or restore your malfunctioning battery smart unit
• Amendments should be performed in order to fix the distorted battery assembly
• Also, a damaged powertrain control module should be repaired or replaced immediately
• Change or repair a faulty battery smart unit as per the requirements
• It is highly important to change or restore a defective electronic control unit too
• Lastly, if a battery control module fails to function, change or repair it as soon as possible

If you need parts to fix this issue, you no longer need to search for them. We at PartsAvatar Canada have an extensive range of auto parts in stock from you like hybrid battery, hybrid battery pack, hybrid battery voltage sensor, battery cable, HV battery assembly, battery control module, powertrain control module, battery connection, exhaust leak, battery smart unit, ranging from all replacement parts to all interior and exterior parts

A scanner (or code reader) and a digital volt/ohmmeter will be helpful in successfully diagnosing this code-storing condition. Begin your diagnosis with a visual inspection of system wiring, connectors, and components. Repair or replace any open, shorted, damaged, or corroded items as required and retest the system to make sure that repairs were successful. If the system wiring, connectors, and components appear to be in normal working order, connect the scanner to the diagnostic connector and record all stored trouble codes and freeze frame data.This information can be extremely helpful in diagnosing intermittent conditions that may have contributed to this code being stored. After the codes are cleared, operate the vehicle to see if the code returns. If the code fails to immediately return, you may have an intermittent condition.

Common mistakes when diagnosing the P0B71 Code

Here we have listed a few common mistakes that should be avoided:

• A malfunction in the high voltage battery connection
• A failure in the high voltage battery assembly
• Wiring problems