How to fix codes 38A4, 378F, 3446, 3847? The BSD line?

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Hello A Chhean

How are you doing. It looks like that it is showing a charging malfunction, electric coolant pump missing, oil condition sensor fault and alternator issue. Its kinda odd that all of them will fail at the same time and I'm suspecting that the BSD is at fault. May I ask the exact year and model of your BMW? I'll be standing by for your response

Thank you

Relly

Do you notice any damage on the wire?

As a first course of action try replacing the intelligent battery sensor. This can be one of the issue that's why there's no communication. 

Hope this helps. I'll be standing by for your response.

Thank you

Relly

Good to hear back from you... I used to get this in a yard for it's cheap but for brand new part I believe Autozone have this. It will be easy to install, from the battery you can just follow the connectors from there and connect the plug one by one. I suggest that you connect the battery after you connected all the sockets.

Is there anything else I can add A Chhean? I'll be standing by for your response. Thank you and have a good one!

Hello A Chhean.. There's a continuity of current that's why the water pump keeps on running even if it's off. I am not an auto electrician and I can't tell why is this happening. It's just we studied the parts and what does it do. Why it keeps on running or why will it not run is if it's faulty. Another thing why I like getting parts in the yard aside from it's cheap is that I can return it and replace it with a different item if it's not working. 

Hello A Chhean!

How are you doing? Is there anything else I can add or help you with? I'll be standing by for your response. 

Thank you

Relly

Hello A Chhean

May I ask A Chhean... Try to remove the negative battery connector. let it sit for 5minutes before reconnecting it. Observe if the water pump will run right after you reconnect the battery. I'll be standing by. Thank you

Hello A Chhean

How are you doing? Any update? I'll be standing by for your response.

Thank you

Relly

Hello A Chhean

How are you doing? Any update? I'll be standing by for your response.

Thank you

Relly

Hello A Chhean

Hope everything is well. Any update on the bimmer?

Relly

Hello Mike

How are you doing?. Any update on the BSD line? Ill be standing by for your response.

Thank you

Relly

Hi A Chhean

Hope everything is good. May I just ask if there's any update or is there anything else I can add or help you with? I'll be standing by for your response. You have a good one!

Relly