P0B70 OBD Error Code: Problem & Solutions

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Error code P0B70? See it flashing? Well, here’s how you can crack the error code. This OBD-II code increased fuel consumption is generally known as a hybrid battery voltage sense "K" circuit high. A lot of mini-batteries connected together constitute the high voltage battery pack. When an error is detected by the high voltage battery pack with more than one battery packs that embody the high voltage battery assembly, the code P0B70 is stored by the high voltage control module.

288 cells in total make up the hybrid/electric vehicle battery pack. Also, band of three cells are connected together in uniformity. There are whole 96 cell groups present in the hybrid/EV battery pack assembly that are connected electrically in-series. Each and every individual cell group is ranked at 3.7 V for a nominal system voltage of 355 V direct current. Next, the battery sections can be seen divided into three sections. The section one contains a total of first 90 cells/30 cell groups. Found close to the cowl, this section consists of batteries from 67 to 96. Proceeding further the section 2 consists of 72 cells/24 cell groups and contains batteries from 43 to 66 and is located at the backside of the section one. Section number three is named as the transverse battery section and is made up of the remaining 126 cells/42 cell groups and contains batteries 1 to 42. All these three sections divided individually are serviceable parts.

The voltage of the 96 battery cell groups is monitored by the battery energy control module through the four hybrid/EV battery interface control modules. There are voltage sense circuits that are linked to each and every individual cell group that end at a connector built on the top surface of the battery section. This connector is linked to the hybrid/EV battery interface control module also located on the top surface of the battery section through a serviceable auxiliary battery wiring harness. The decoding of the voltage reading is done by the hybrid/EV battery interface control module that is further transmitted to the battery energy control module through the battery control harness. The battery sections one and two have a single hybrid/EV battery interface control module while the battery section three has two hybrid/EV battery interface control module located on it. The components that can be serviced also include the hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module.

The presence of a fault is notified by the battery energy control module. Also, the diagnostics and system status are informed to the hybrid/EV powertrain control module 2 through serial data by the battery energy control module. The hybrid/EV powertrain control module 2 is the main controller for diagnostic trouble code information.

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

• A fault in the hybrid/electric vehicle battery pack
• A damaged hybrid/electric vehicle battery interface control module

1. Hybrid battery - Well, a hybrid battery that has dead traction can be very problematic. It can result into a delayed or instant release of gases that are toxic or flammable. We recommend you to change it instantly without taking the risk of touching it as it may lead to a shock.
2. Hybrid battery pack - If the hybrid battery pack is corroded, there are chances that you may observe sparks, flames or smoke coming out of the vehicle. There can also be an accident related to the HV or HEV. So it is important to change it right away. Parts Avatar has it all for you! Log in now.
3. Hybrid battery Voltage sensor - Whenever there is a fault in the hybrid battery voltage sensor, it may at times lead to the whole system being damaged. Also, if not replaced it can also lead to expensive after repairs. There can be reduced fuel dependence observed too.
4. Battery cable - It should be noted that whenever there is a problem with the battery cable it may end up damaging the battery itself as well as other electrical components installed. So it is important to mend the battery cable to avoid further repairs that can be expensive as well as time taking. Tune into Parts Avatar for the best battery cables.
5. Battery assembly - These are connected group of cells, when if they are damaged, the driver may observe a dead battery. A slow engine crank along with a less reserve cranking power is accompanied whenever there is problem with the battery assembly. We advise you to change or repair it. 
6. Battery control module - A defect in the battery control module can lead to the check engine light flashing on. Apart from engine stalling and misfiring conditions the driver may observe a problems with the performance of the engine. So we advise you to get your battery control module repaired or replaced.
7. Powertrain control module - A bad powertrain control module may lead to a poorly running engine. The operation and the fuel regulation of the system may also fail at times. The engine might choke as the PCM plays the role of determining the correct fuel mixture. So this essential unit if faulty should be changed immediately. Now get your PCM delivered right at your doorstep with Parts Avatar. What are you waiting for?
8. Exhaust system parts - Malfunctioning exhaust system parts may lead to a noisy engine exhaust. A significant decrease in the fuel efficiency, power and acceleration are likely to be observed first as soon as there is a fault in the exhaust system parts. So it is important to change them. Log into Parts Avatar now for supreme quality products.
9. Battery smart unit - At times the battery smart unit might fail due to excessive mileage or extreme temperatures. All the dash lights are likely to illuminate (the triangle caution light and the check engine light). Unusual engine noises can be observed too. Log into Parts Avatar now!

Next important thing you need to know about are the common symptoms for this obd error code P0B70 with your fuel volume control.

Common Symptoms

• Increase in the fuel consumption
• An engine light on (or service engine soon warning light)

Wish to correct this error code with your vehicle? Do you know what all you should do to make your car free from this code? Well, don’t worry! We are here to guide you.

• Repair or replace a faulty hybrid/electric vehicle battery pack
• Also, change or repair a malfunctioning hybrid/electric vehicle battery interface control module
• It is essential to change or restore a faulty powertrain control module instantly
• Mend or restore a distorted electronic control unit in order to avoid further problems
• An unsound battery smart unit unit should be changed or repaired right away
• Measures should be taken to fix a defective exhaust system parts too

If you need any parts to fix this problem you can easily find them with us. Not only that we also have in stock the best in range auto parts and that too at the most budget friendly prices ever online. Whether you need a hybrid battery, hybrid battery pack, hybrid battery voltage sensor, battery cable, battery assembly, battery control module, powertrain control module, battery connection, exhaust leak, battery smart unit, you can simply rely on us for quality auto parts.

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

A standard OBD-II trouble code scanner should be used to diagnose this trouble code P0B70. The scanner will be used to check and view the freeze frame data and assess the code by a certified technician. The technician should also check for additional trouble codes stored. After the repairs have been performed, the codes should be retested and the vehicle should be restarted to see if the code pertains. If the code disappears it could likely be due to a faulty diagnose or may represent an intermittent issue.

Common mistakes when diagnosing the P0B70 Code

Here listed are a few common mistakes that should be avoided while the error code is store:

• A failure in the high voltage battery connection
• A damaged high voltage battery assembly
• Wiring issues in the system