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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Absolutely no power???



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      02-21-2020, 07:01 PM   #1
TronE90
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Absolutely no power???

So today i swapped out my footwell module and everything went well until I decided to start my car up. Nothing happened at all. No dash lights nothing. power seats are out of commission I have no power what so ever but my battery is reading a 12.3 volt so I am very concerned about what was done wrong. It would be wonderful if someone could help me please.
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      02-21-2020, 07:39 PM   #2
WoodE30
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Did you program/code it to the vehicle?
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      02-21-2020, 07:45 PM   #3
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Originally Posted by WoodE30 View Post
Did you program/code it to the vehicle?
No I have not but i should be able to start the car without it.
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      02-21-2020, 07:49 PM   #4
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Did you program/code it to the vehicle?
No I have not but i should be able to start the car without it.
And you're sure it was the FRM and not the CAS module? They're about 6 inches apart. Pop in the old FRM and see if you get power again.
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      02-21-2020, 09:09 PM   #5
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Originally Posted by WoodE30 View Post
And you're sure it was the FRM and not the CAS module? They're about 6 inches apart. Pop in the old FRM and see if you get power again.
I did pop in the old FRM and nothing came up. I also do not have Comfort Access. Do you think it might be the wire that comes off the battery to the fuse box? I think its called the b+ cable
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      02-22-2020, 02:32 AM   #6
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Quote:
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Originally Posted by WoodE30 View Post
And you're sure it was the FRM and not the CAS module? They're about 6 inches apart. Pop in the old FRM and see if you get power again.
I did pop in the old FRM and nothing came up. I also do not have Comfort Access. Do you think it might be the wire that comes off the battery to the fuse box? I think its called the b+ cable
You do have a car access module, it's the module that allows the car to turn on. It sits right un the steering column.
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      02-22-2020, 02:38 AM   #7
Tambohamilton
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+1, CAS doesn't mean comfort access, it's the car access module; it's the central security module for the car. Without a good CAS, your car is going nowhere. If it's not programmed to your key, your car will behave as if you're trying to unlock/start a different car with your key.

If you swap it back and the car cranks but won't start, you need to realign the CAS and DME/DDE using INPA/ISTA-D/Protocol/etc.
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      02-22-2020, 04:22 AM   #8
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Quote:
Originally Posted by Tambohamilton View Post
+1, CAS doesn't mean comfort access, it's the car access module; it's the central security module for the car. Without a good CAS, your car is going nowhere. If it's not programmed to your key, your car will behave as if you're trying to unlock/start a different car with your key.

If you swap it back and the car cranks but won't start, you need to realign the CAS and DME/DDE using INPA/ISTA-D/Protocol/etc.
No lights come on when i put a key in like the car is completely dead.
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      02-22-2020, 04:51 AM   #9
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Have you had the junction box B+ cable recall done?
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      02-24-2020, 02:12 AM   #10
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Have you had the junction box B+ cable recall done?
I live in Canada and my car is a 335 so I do not think I am covered under recall.
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