Guide To P0B9D OBD Error Code Solutions

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Only for our customers we have written here all that you need to know about the error code P0B9D. This generic OBD-II code increased fuel consumption is also referred to as a hybrid battery voltage sense "T" circuit high. Numerous mini-batteries connected together constitute the high voltage battery pack. The hybrid voltage battery assembly consists of battery packs. When if the high voltage control module detects an issue with more than one of these battery packs, it stores the error code P0B9D.

The hybrid/electric vehicle battery pack is usually composed of 288 cells. In groups, three cells are all soldered together uniformly. A total number of 96 cell groups can be seen in the hybrid/EV battery pack assembly. All these cell groups are connected together through an electrical connection in-series. Every individual cell group is rated at 3.7 V for a nominal system voltage of 355 V direct current. Further, all these battery sections are sectioned into three. The battery section one is made up of the first 90 cells/30 cell groups. You can find this section located close to the cowl consisting of batteries changing from 67 to 96.  The battery section one is located in front of the battery section two. This section consists of 72 cells/24 cell groups each containing batteries from 43 to 66. The section number three is labelled as the transverse battery section, that comprises of the remaining 126 cells/42 cell groups and also includes batteries 1 to 42. All these three battery sections can be serviced properly individually.

From time to time, the battery energy control module controls the voltage of the 96 battery cell groups with the help of the four hybrid/EV battery interface control modules. The voltage sense circuits are all linked to each individual cell group and these sense circuits end at a connector built on the top surface of the battery section. Also, mounted on the top surface of the battery section, a serviceable auxiliary battery wiring harness fixes this connector to a hybrid/EV battery interface control module. The hybrid/EV battery interface control module performs the task of encoding the voltage reading and forwarding it further to the battery energy control module through the battery control harness. On battery sections one and two, there is one hybrid/EV battery interface control module built. Two hybrid/EV battery interface control modules are linked with battery section three. All these components including the hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are serviceable parts.

The function of notifying a fault condition is performed by the battery energy control module. Using serial data, the diagnostics and system status are sent from the battery energy control module to hybrid/EV powertrain control module 2. The hybrid/EV powertrain control module considered to be the main controller for diagnostic trouble code information.

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

• A jammed hybrid/electric vehicle battery pack
• A failed hybrid/electric vehicle battery interface control module

1. Hybrid Vehicle Battery Pack - Do you like to travel a lot? But don’t know the reason behind this sudden fall in the engine performance? Well, it could be due to a discharged hybrid vehicle battery pack. Tune into Parts Avatar if you want to get yours changed right now.
2. Hybrid Vehicle Battery Interface Control Module - Hearing an unusual engine noise? Then we advise you to check your hybrid vehicle battery interface control module immediately. Visit us today if you wish to change or repair it now!
3. Powertrain Control Module - Innumerable unexplained symptoms are likely to accompany a damaged PCM. The unit enables the system and transmission to work in tandem. So, a defective PCM can affect not only a few parts but the functioning of the entire system. Tune into Parts Avatar for top notch set of PCMs.
4. Engine Control Module - This chief auto part should be repaired or replaced immediately if it is faulty as it is likely to disturb the overall functioning of the system. Log in to Parts Avatar now!

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0B9D code by mentioning some major symptoms below:

Common Symptoms

• The check engine light starts blinking on/off

Have a look at some ways with which you can correct the P0B9D code:

• A distorted hybrid/electric vehicle battery pack should be changed or mended
• A damaged hybrid/electric vehicle battery interface control module should be repaired or replaced immediately

There is no need to get strained if your OBD code is still flashing up as we are here at your service. Have a look at our superior variety of hybrid vehicle battery pack, hybrid vehicle battery interface control module and many more. Now all your problems would vanish within no time.

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

It is observed that often broken engine mountings can lead to knocking or grinding noises. One can find two types of mounting: one that is centrally placed near the bottom of the block and one that is higher up the block found on to the inner wings or chassis members. Well, the code P0B9D strictly refers to the camshaft (cam) timing. In such circumstances, the cam timing is observed to be over-retarded. As result, the code is stored and the engine light illuminates.

Common Mistakes When Diagnosing the P0B9D Code

Here we have listed a few common mistakes that should be avoided while performing the diagnosis:

• A defective high voltage battery connection
• Failed high voltage battery assembly
• Wiring defects in the system