How to remove and replace the BCM (body control module) on a 2003 to 2010 Nissan Micra K12. The BCM is responsible for monitoring and controlling various electronic accessories in a vehicle's body. In a car the BCM typically controls the power windows, power mirrors, air conditioning, immobilizer system, central locking, etc. If your BCM begins to malfunction, you will notice a negative effect on the operation of the various parts that the BCM commands and it’s likely that you’ll experience one or more of the following symptoms:

1. Repeated Battery Drain
One of the most common symptoms associated with BCM failure is repeated, excessive battery drain, also known as a parasitic draw. While a certain amount of parasitic draw is permissible, excessive draw caused by a BCM fault can drain a battery in hours. This draw can occur when a BCM continues to supply power to a particular accessory at incorrect times.

2. Erratic Electrical Function
A faulty BCM can also cause intermittent operation of various electrical functions, such as a vehicle’s wipers, lights, and horn. Erratic, sweeping instrument cluster dials are also a sign of BCM failure, as is irregular door lock and radio operation. The issues are more likely to be caused by a faulty BCM when more than one of these symptoms are present at any given time.

3. Security System Problems
In nearly every instance, a vehicle’s security system is operated by the BCM. Therefore, it is easy to assume that consistent, yet unusual issues associated with a vehicle’s security system, are caused by a failing or faulty BCM. This could also include problems with a vehicle’s keyless-entry or passive-entry functions.

4. Dash Warning Lights
A faulty BCM can cause havoc with a vehicle’s instrument cluster. An otherwise normal dash display can suddenly be illuminated like a Christmas tree. This occurs when a BCM is unable to communicate with one more of a vehicle’s additional control modules, such as the transmission control module, powertrain control module, or airbag control module.

5. Failure To Start
A non-functioning or faulty BCM can also prevent a vehicle from starting at all, in certain cases. Although rare, a bad BCM can fail to identify the key’s transponder chip, or can simply fail to deliver a start signal from a vehicle’s ignition switch, thereby preventing starter engagement. A lack of communication by the BCM with other corresponding control modules can also lead to starting difficulties. Thanks for watching. Please comment, like and subscribe !.

All of my uploaded material is protected under copyright law. None of my videos may be re-uploaded, reproduced or transmitted, in part or in full, in any form or by any means, without the written permission of the copyright holder.

©Youtube.com/Screwsnutsandbolts 2022

Read important information below:

Disclaimer

Under no circumstances will Screwsnutsandbolts be responsible or liable in any way for any content, including but not limited to, any errors or omissions in the content, or for any loss or damage of any kind incurred as a result of any content communicated in this video, whether by Screwsnutsandbolts or a third party. In no event shall Screwsnutsandbolts be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits arising out of or in connection with the availability, use or performance of any information communicated in this video. Due to factors beyond the control of Screwsnutsandbolts, it cannot guarantee against improper use or unauthorized modifications of this information. Screwsnutsandbolts assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Screwsnutsandbolts recommends safe practices when performing any do it yourself repairs and or with tools seen or implied in this video. Due to factors beyond the control of Screwsnutsandbolts, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Screwsnutsandbolts.

свернуть